diff --git a/app/Api/V1/Controllers/BudgetLimitController.php b/app/Api/V1/Controllers/BudgetLimitController.php
index 1acbae59d5..2d40ec7dea 100644
--- a/app/Api/V1/Controllers/BudgetLimitController.php
+++ b/app/Api/V1/Controllers/BudgetLimitController.php
@@ -97,35 +97,15 @@ class BudgetLimitController extends Controller
         $baseUrl  = $request->getSchemeAndHttpHost() . '/api/v1';
         $budgetId = (int)($request->get('budget_id') ?? 0);
         $budget   = $this->repository->findNull($budgetId);
-        $start    = null;
-        $end      = null;
-        $this->parameters->set('budget_id', $budgetId);
-
-
-        try {
-            $start = Carbon::createFromFormat('Y-m-d', $request->get('start'));
-            $this->parameters->set('start', $start->format('Y-m-d'));
-        } catch (InvalidArgumentException $e) {
-            Log::debug(sprintf('Invalid date: %s', $e->getMessage()));
-        }
-
-        try {
-            $end = Carbon::createFromFormat('Y-m-d', $request->get('end'));
-            $this->parameters->set('end', $end->format('Y-m-d'));
-        } catch (InvalidArgumentException $e) {
-            Log::debug(sprintf('Invalid date: %s', $e->getMessage()));
-        }
-
         $pageSize = (int)app('preferences')->getForUser(auth()->user(), 'listPageSize', 50)->data;
+        $this->parameters->set('budget_id', $budgetId);
 
         $collection = new Collection;
         if (null === $budget) {
-            /** @noinspection PhpUndefinedVariableInspection */
-            $collection = $this->repository->getAllBudgetLimits($start, $end);
+            $collection = $this->repository->getAllBudgetLimits($this->parameters->get('start'), $this->parameters->get('end'));
         }
         if (null !== $budget) {
-            /** @noinspection PhpUndefinedVariableInspection */
-            $collection = $this->repository->getBudgetLimits($budget, $start, $end);
+            $collection = $this->repository->getBudgetLimits($budget, $this->parameters->get('start'), $this->parameters->get('end'));
         }
 
         $count        = $collection->count();
diff --git a/app/Http/Controllers/Admin/ConfigurationController.php b/app/Http/Controllers/Admin/ConfigurationController.php
index 65ae4cbc24..c2668ec2af 100644
--- a/app/Http/Controllers/Admin/ConfigurationController.php
+++ b/app/Http/Controllers/Admin/ConfigurationController.php
@@ -55,6 +55,8 @@ class ConfigurationController extends Controller
     }
 
     /**
+     * Show configuration index.
+     *
      * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
      */
     public function index()
@@ -75,6 +77,8 @@ class ConfigurationController extends Controller
     }
 
     /**
+     * Store new configuration values.
+     *
      * @param ConfigurationRequest $request
      *
      * @return RedirectResponse
diff --git a/app/Http/Controllers/Admin/HomeController.php b/app/Http/Controllers/Admin/HomeController.php
index 668ce53214..2373143b9a 100644
--- a/app/Http/Controllers/Admin/HomeController.php
+++ b/app/Http/Controllers/Admin/HomeController.php
@@ -46,6 +46,8 @@ class HomeController extends Controller
     }
 
     /**
+     * Index of the admin.
+     *
      * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
      */
     public function index()
@@ -58,6 +60,8 @@ class HomeController extends Controller
     }
 
     /**
+     * Send a test message to the admin.
+     *
      * @param Request $request
      *
      * @return \Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector
diff --git a/app/Http/Controllers/Admin/LinkController.php b/app/Http/Controllers/Admin/LinkController.php
index d0ab421605..fd877c1e5d 100644
--- a/app/Http/Controllers/Admin/LinkController.php
+++ b/app/Http/Controllers/Admin/LinkController.php
@@ -36,7 +36,7 @@ use View;
 class LinkController extends Controller
 {
     /**
-     *
+     * LinkController constructor.
      */
     public function __construct()
     {
@@ -54,6 +54,7 @@ class LinkController extends Controller
     }
 
     /**
+     * Make a new link form.
      * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
      */
     public function create()
@@ -70,6 +71,8 @@ class LinkController extends Controller
     }
 
     /**
+     * Delete a link form.
+     *
      * @param Request                     $request
      * @param LinkTypeRepositoryInterface $repository
      * @param LinkType                    $linkType
@@ -102,6 +105,8 @@ class LinkController extends Controller
     }
 
     /**
+     * Actually destroy the link.
+     *
      * @param Request                     $request
      * @param LinkTypeRepositoryInterface $repository
      * @param LinkType                    $linkType
@@ -121,6 +126,8 @@ class LinkController extends Controller
     }
 
     /**
+     * Edit a link form.
+     *
      * @param Request  $request
      * @param LinkType $linkType
      *
@@ -146,6 +153,8 @@ class LinkController extends Controller
     }
 
     /**
+     * Show index of all links.
+     *
      * @param LinkTypeRepositoryInterface $repository
      *
      * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
@@ -165,6 +174,8 @@ class LinkController extends Controller
     }
 
     /**
+     * Show a single link.
+     *
      * @param LinkType $linkType
      *
      * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
@@ -179,6 +190,8 @@ class LinkController extends Controller
     }
 
     /**
+     * Store the new link.
+     *
      * @param LinkTypeFormRequest         $request
      * @param LinkTypeRepositoryInterface $repository
      *
@@ -206,6 +219,8 @@ class LinkController extends Controller
     }
 
     /**
+     * Update an existing link.
+     *
      * @param LinkTypeFormRequest         $request
      * @param LinkTypeRepositoryInterface $repository
      * @param LinkType                    $linkType
diff --git a/app/Http/Controllers/Admin/UpdateController.php b/app/Http/Controllers/Admin/UpdateController.php
index 5c8c7f54c9..3c672fd9aa 100644
--- a/app/Http/Controllers/Admin/UpdateController.php
+++ b/app/Http/Controllers/Admin/UpdateController.php
@@ -56,6 +56,8 @@ class UpdateController extends Controller
     }
 
     /**
+     * Show page with update options.
+     *
      * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
      * @throws \Psr\Container\NotFoundExceptionInterface
      * @throws \Psr\Container\ContainerExceptionInterface
@@ -76,6 +78,8 @@ class UpdateController extends Controller
     }
 
     /**
+     * Post new settings.
+     *
      * @param Request $request
      *
      * @return \Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector
diff --git a/app/Http/Controllers/Admin/UserController.php b/app/Http/Controllers/Admin/UserController.php
index b5772a8def..1a49e5d93d 100644
--- a/app/Http/Controllers/Admin/UserController.php
+++ b/app/Http/Controllers/Admin/UserController.php
@@ -36,7 +36,7 @@ use Log;
 class UserController extends Controller
 {
     /**
-     *
+     * UserController constructor.
      */
     public function __construct()
     {
@@ -55,6 +55,8 @@ class UserController extends Controller
     }
 
     /**
+     * Delete a user.
+     *
      * @param User $user
      *
      * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
@@ -67,6 +69,8 @@ class UserController extends Controller
     }
 
     /**
+     * Destroy a user.
+     *
      * @param User                    $user
      * @param UserRepositoryInterface $repository
      *
@@ -81,6 +85,8 @@ class UserController extends Controller
     }
 
     /**
+     * Edit user form.
+     *
      * @param User $user
      *
      * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
@@ -106,6 +112,8 @@ class UserController extends Controller
     }
 
     /**
+     * Show index of user manager.
+     *
      * @param UserRepositoryInterface $repository
      *
      * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
@@ -133,6 +141,8 @@ class UserController extends Controller
     }
 
     /**
+     * Show single user.
+     *
      * @param UserRepositoryInterface $repository
      * @param User                    $user
      *
@@ -154,6 +164,8 @@ class UserController extends Controller
     }
 
     /**
+     * Update single user.
+     *
      * @param UserFormRequest         $request
      * @param User                    $user
      * @param UserRepositoryInterface $repository
diff --git a/app/Http/Controllers/Auth/ForgotPasswordController.php b/app/Http/Controllers/Auth/ForgotPasswordController.php
index 26b56d0928..ccdb13e75c 100644
--- a/app/Http/Controllers/Auth/ForgotPasswordController.php
+++ b/app/Http/Controllers/Auth/ForgotPasswordController.php
@@ -36,17 +36,6 @@ use Illuminate\Support\Facades\Password;
  */
 class ForgotPasswordController extends Controller
 {
-    /*
-    |--------------------------------------------------------------------------
-    | Password Reset Controller
-    |--------------------------------------------------------------------------
-    |
-    | This controller is responsible for handling password reset emails and
-    | includes a trait which assists in sending these notifications from
-    | your application to your users. Feel free to explore this trait.
-    |
-    */
-
     use SendsPasswordResetEmails;
 
     /**
@@ -93,6 +82,8 @@ class ForgotPasswordController extends Controller
     }
 
     /**
+     * Show form for email recovery.
+     *
      * @codeCoverageIgnore
      *
      * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
diff --git a/app/Http/Controllers/Auth/LoginController.php b/app/Http/Controllers/Auth/LoginController.php
index 2fe7a26b1d..cf47892ff3 100644
--- a/app/Http/Controllers/Auth/LoginController.php
+++ b/app/Http/Controllers/Auth/LoginController.php
@@ -60,6 +60,8 @@ class LoginController extends Controller
     }
 
     /**
+     * Log in a user.
+     *
      * @param Request $request
      *
      * @return \Illuminate\Http\Response|\Symfony\Component\HttpFoundation\Response|void
diff --git a/app/Http/Controllers/Auth/TwoFactorController.php b/app/Http/Controllers/Auth/TwoFactorController.php
index dce3d27a93..79cf7ec63b 100644
--- a/app/Http/Controllers/Auth/TwoFactorController.php
+++ b/app/Http/Controllers/Auth/TwoFactorController.php
@@ -36,6 +36,8 @@ use Log;
 class TwoFactorController extends Controller
 {
     /**
+     * Show 2FA screen.
+     *
      * @param Request $request
      *
      * @return \Illuminate\Contracts\View\Factory|\Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector|\Illuminate\View\View
@@ -67,6 +69,8 @@ class TwoFactorController extends Controller
     }
 
     /**
+     * What to do if 2FA lost?
+     *
      * @return mixed
      */
     public function lostTwoFactor()
@@ -86,6 +90,8 @@ class TwoFactorController extends Controller
     }
 
     /**
+     * Submit 2FA code.
+     *
      * @param TokenFormRequest $request
      * @param CookieJar        $cookieJar
      *
diff --git a/app/Http/Controllers/Budget/AmountController.php b/app/Http/Controllers/Budget/AmountController.php
index 4dc5fad5dd..fb4be807eb 100644
--- a/app/Http/Controllers/Budget/AmountController.php
+++ b/app/Http/Controllers/Budget/AmountController.php
@@ -38,17 +38,16 @@ use Illuminate\Http\Request;
 use Illuminate\Support\Collection;
 
 /**
- *
  * Class AmountController
  */
 class AmountController extends Controller
 {
     use DateCalculation;
-    /** @var BudgetRepositoryInterface */
+    /** @var BudgetRepositoryInterface The budget repository */
     private $repository;
 
     /**
-     *
+     * AmountController constructor.
      */
     public function __construct()
     {
@@ -69,6 +68,8 @@ class AmountController extends Controller
 
 
     /**
+     * Set the amount for a single budget in a specific period. Shows a waring when its a lot.
+     *
      * @param Request                   $request
      * @param BudgetRepositoryInterface $repository
      * @param Budget                    $budget
@@ -122,6 +123,8 @@ class AmountController extends Controller
 
 
     /**
+     * Shows some basic info about the income and the suggested budget.
+     *
      * @param Carbon $start
      * @param Carbon $end
      *
@@ -169,6 +172,8 @@ class AmountController extends Controller
 
 
     /**
+     * Store an available budget for the current period.
+     *
      * @param BudgetIncomeRequest $request
      *
      * @return RedirectResponse
@@ -188,6 +193,8 @@ class AmountController extends Controller
     }
 
     /**
+     * Shows the form to update available budget.
+     *
      * @param Request $request
      * @param Carbon  $start
      * @param Carbon  $end
diff --git a/app/Http/Controllers/Budget/CreateController.php b/app/Http/Controllers/Budget/CreateController.php
index 3b671f255e..097833f2d4 100644
--- a/app/Http/Controllers/Budget/CreateController.php
+++ b/app/Http/Controllers/Budget/CreateController.php
@@ -35,11 +35,11 @@ use Illuminate\Http\Request;
  */
 class CreateController extends Controller
 {
-    /** @var BudgetRepositoryInterface */
+    /** @var BudgetRepositoryInterface The budget repository */
     private $repository;
 
     /**
-     *
+     * CreateController constructor.
      */
     public function __construct()
     {
@@ -60,6 +60,8 @@ class CreateController extends Controller
 
 
     /**
+     * Form to create a budget.
+     *
      * @param Request $request
      *
      * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
@@ -78,6 +80,8 @@ class CreateController extends Controller
 
 
     /**
+     * Stores a budget.
+     *
      * @param BudgetFormRequest $request
      *
      * @return \Illuminate\Http\RedirectResponse
diff --git a/app/Http/Controllers/Budget/DeleteController.php b/app/Http/Controllers/Budget/DeleteController.php
index bbe5d688eb..125dc427b2 100644
--- a/app/Http/Controllers/Budget/DeleteController.php
+++ b/app/Http/Controllers/Budget/DeleteController.php
@@ -35,11 +35,11 @@ use Illuminate\Http\Request;
  */
 class DeleteController extends Controller
 {
-    /** @var BudgetRepositoryInterface */
+    /** @var BudgetRepositoryInterface The budget repository */
     private $repository;
 
     /**
-     *
+     * DeleteController constructor.
      */
     public function __construct()
     {
@@ -60,6 +60,8 @@ class DeleteController extends Controller
 
 
     /**
+     * Deletes a budget.
+     *
      * @param Budget $budget
      *
      * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
@@ -75,6 +77,8 @@ class DeleteController extends Controller
     }
 
     /**
+     * Destroys a budget.
+     *
      * @param Request $request
      * @param Budget  $budget
      *
diff --git a/app/Http/Controllers/Budget/EditController.php b/app/Http/Controllers/Budget/EditController.php
index c621b47478..2801ac4d73 100644
--- a/app/Http/Controllers/Budget/EditController.php
+++ b/app/Http/Controllers/Budget/EditController.php
@@ -37,11 +37,11 @@ use Illuminate\Http\Request;
  */
 class EditController extends Controller
 {
-    /** @var BudgetRepositoryInterface */
+    /** @var BudgetRepositoryInterface The budget repository */
     private $repository;
 
     /**
-     *
+     * EditController constructor.
      */
     public function __construct()
     {
@@ -61,6 +61,8 @@ class EditController extends Controller
     }
 
     /**
+     * Budget edit form.
+     *
      * @param Request $request
      * @param Budget  $budget
      *
@@ -87,6 +89,8 @@ class EditController extends Controller
     }
 
     /**
+     * Budget update routine.
+     *
      * @param BudgetFormRequest $request
      * @param Budget            $budget
      *
diff --git a/app/Http/Controllers/Budget/IndexController.php b/app/Http/Controllers/Budget/IndexController.php
index 557da042eb..b385b4f005 100644
--- a/app/Http/Controllers/Budget/IndexController.php
+++ b/app/Http/Controllers/Budget/IndexController.php
@@ -41,11 +41,11 @@ class IndexController extends Controller
 {
 
     use DateCalculation;
-    /** @var BudgetRepositoryInterface */
+    /** @var BudgetRepositoryInterface The budget repository */
     private $repository;
 
     /**
-     *
+     * IndexController constructor.
      */
     public function __construct()
     {
@@ -66,6 +66,10 @@ class IndexController extends Controller
 
 
     /**
+     * Show all budgets.
+     *
+     * TODO remove moment routine.
+     *
      * @param Request     $request
      * @param string|null $moment
      *
diff --git a/app/Http/Controllers/Budget/ShowController.php b/app/Http/Controllers/Budget/ShowController.php
index 72013035ba..742bff0ace 100644
--- a/app/Http/Controllers/Budget/ShowController.php
+++ b/app/Http/Controllers/Budget/ShowController.php
@@ -44,11 +44,11 @@ use Illuminate\Support\Collection;
 class ShowController extends Controller
 {
 
-    /** @var BudgetRepositoryInterface */
+    /** @var BudgetRepositoryInterface The budget repository */
     private $repository;
 
     /**
-     *
+     * ShowController constructor.
      */
     public function __construct()
     {
@@ -68,6 +68,8 @@ class ShowController extends Controller
     }
 
     /**
+     * Show transactions without a budget.
+     *
      * @param Request     $request
      * @param Carbon|null $start
      * @param Carbon|null $end
@@ -99,6 +101,8 @@ class ShowController extends Controller
     }
 
     /**
+     * Shows ALL transactions without a budget.
+     *
      * @param Request                    $request
      * @param JournalRepositoryInterface $repository
      *
@@ -128,6 +132,8 @@ class ShowController extends Controller
 
 
     /**
+     * Show a single budget.
+     *
      * @param Request $request
      * @param Budget  $budget
      *
@@ -156,6 +162,8 @@ class ShowController extends Controller
     }
 
     /**
+     * Show a single budget by a budget limit.
+     *
      * @param Request     $request
      * @param Budget      $budget
      * @param BudgetLimit $budgetLimit
@@ -195,6 +203,8 @@ class ShowController extends Controller
     }
 
     /**
+     * Gets all budget limits for a budget.
+     *
      * @param Budget $budget
      * @param Carbon $start
      * @param Carbon $end
@@ -229,6 +239,8 @@ class ShowController extends Controller
 
 
     /**
+     * Gets period overview used for budgets.
+     *
      * @return Collection
      *
      * @SuppressWarnings(PHPMD.ExcessiveMethodLength)
diff --git a/app/Http/Controllers/Category/NoCategoryController.php b/app/Http/Controllers/Category/NoCategoryController.php
index 49e1b287d1..7d9c0c52b7 100644
--- a/app/Http/Controllers/Category/NoCategoryController.php
+++ b/app/Http/Controllers/Category/NoCategoryController.php
@@ -45,7 +45,7 @@ class NoCategoryController extends Controller
 
     /** @var JournalRepositoryInterface Journals and transactions overview */
     private $journalRepos;
-    /** @var CategoryRepositoryInterface */
+    /** @var CategoryRepositoryInterface The category repository */
     private $repository;
 
     /**
@@ -68,6 +68,8 @@ class NoCategoryController extends Controller
     }
 
     /**
+     * Show transactions without a category.
+     *
      * @param Request     $request
      * @param string|null $moment
      *
diff --git a/app/Http/Controllers/Category/ShowController.php b/app/Http/Controllers/Category/ShowController.php
index c3731c175c..764226e663 100644
--- a/app/Http/Controllers/Category/ShowController.php
+++ b/app/Http/Controllers/Category/ShowController.php
@@ -51,7 +51,7 @@ class ShowController extends Controller
     private $accountRepos;
     /** @var JournalRepositoryInterface Journals and transactions overview */
     private $journalRepos;
-    /** @var CategoryRepositoryInterface */
+    /** @var CategoryRepositoryInterface The category repository */
     private $repository;
 
     /**
@@ -77,6 +77,8 @@ class ShowController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Show a single category.
+     *
      * @param Request     $request
      * @param Category    $category
      * @param Carbon|null $start
@@ -114,6 +116,8 @@ class ShowController extends Controller
     }
 
     /**
+     * Show all transactions within a category.
+     *
      * @param Request  $request
      * @param Category $category
      *
@@ -150,6 +154,8 @@ class ShowController extends Controller
     }
 
     /**
+     * Get a period overview for category.
+     *
      * @param Category $category
      *
      * @param Carbon   $date
diff --git a/app/Http/Controllers/CategoryController.php b/app/Http/Controllers/CategoryController.php
index c8924e0c7f..53c18ae4ad 100644
--- a/app/Http/Controllers/CategoryController.php
+++ b/app/Http/Controllers/CategoryController.php
@@ -34,7 +34,7 @@ use Illuminate\Support\Collection;
  */
 class CategoryController extends Controller
 {
-    /** @var CategoryRepositoryInterface */
+    /** @var CategoryRepositoryInterface The category repository */
     private $repository;
 
     /**
diff --git a/app/Http/Controllers/Chart/AccountController.php b/app/Http/Controllers/Chart/AccountController.php
index a89db85f0c..b326c9272e 100644
--- a/app/Http/Controllers/Chart/AccountController.php
+++ b/app/Http/Controllers/Chart/AccountController.php
@@ -52,11 +52,11 @@ class AccountController extends Controller
 {
     use DateCalculation;
 
-    /** @var GeneratorInterface */
+    /** @var GeneratorInterface Chart generation methods. */
     protected $generator;
 
     /**
-     *
+     * AccountController constructor.
      */
     public function __construct()
     {
@@ -109,6 +109,8 @@ class AccountController extends Controller
 
 
     /**
+     * Expenses per budget, as shown on account overview.
+     *
      * @param Account $account
      * @param Carbon  $start
      * @param Carbon  $end
@@ -152,6 +154,8 @@ class AccountController extends Controller
     }
 
     /**
+     * Expenses per budget for all time, as shown on account overview.
+     *
      * @param AccountRepositoryInterface $repository
      * @param Account                    $account
      *
@@ -167,6 +171,8 @@ class AccountController extends Controller
 
 
     /**
+     * Expenses per category for one single account.
+     *
      * @param Account $account
      * @param Carbon  $start
      * @param Carbon  $end
@@ -210,6 +216,8 @@ class AccountController extends Controller
     }
 
     /**
+     * Expenses grouped by category for account.
+     *
      * @param AccountRepositoryInterface $repository
      * @param Account                    $account
      *
@@ -253,6 +261,8 @@ class AccountController extends Controller
 
 
     /**
+     * Shows all income per account for each category.
+     *
      * @param Account $account
      * @param Carbon  $start
      * @param Carbon  $end
@@ -296,6 +306,8 @@ class AccountController extends Controller
     }
 
     /**
+     * Shows the income grouped by category for an account, in all time.
+     *
      * @param AccountRepositoryInterface $repository
      * @param Account                    $account
      *
@@ -311,6 +323,8 @@ class AccountController extends Controller
 
 
     /**
+     * Shows overview of account during a single period.
+     *
      * @param Account $account
      * @param Carbon  $start
      *
@@ -427,6 +441,8 @@ class AccountController extends Controller
 
 
     /**
+     * Shows an overview of the account balances for a set of accounts.
+     *
      * @param Collection $accounts
      * @param Carbon     $start
      * @param Carbon     $end
@@ -484,6 +500,8 @@ class AccountController extends Controller
     }
 
     /**
+     * Get the budget names from a set of budget ID's.
+     *
      * @param array $budgetIds
      *
      * @return array
@@ -506,7 +524,7 @@ class AccountController extends Controller
     }
 
     /**
-     * Small helper function for some of the charts.
+     * Get the category names from a set of category ID's. Small helper function for some of the charts.
      *
      * @param array $categoryIds
      *
diff --git a/app/Http/Controllers/Chart/BillController.php b/app/Http/Controllers/Chart/BillController.php
index 2fb9bb408e..756df67daf 100644
--- a/app/Http/Controllers/Chart/BillController.php
+++ b/app/Http/Controllers/Chart/BillController.php
@@ -38,11 +38,11 @@ use Illuminate\Support\Collection;
  */
 class BillController extends Controller
 {
-    /** @var GeneratorInterface */
+    /** @var GeneratorInterface Chart generation methods. */
     protected $generator;
 
     /**
-     * checked.
+     * BillController constructor.
      */
     public function __construct()
     {
@@ -85,6 +85,8 @@ class BillController extends Controller
 
 
     /**
+     * Shows history for a single bill.
+     *
      * @param JournalCollectorInterface $collector
      * @param Bill                      $bill
      *
diff --git a/app/Http/Controllers/Chart/BudgetController.php b/app/Http/Controllers/Chart/BudgetController.php
index 9586e0fe54..90e647a768 100644
--- a/app/Http/Controllers/Chart/BudgetController.php
+++ b/app/Http/Controllers/Chart/BudgetController.php
@@ -50,10 +50,10 @@ use Illuminate\Support\Collection;
 class BudgetController extends Controller
 {
     use DateCalculation;
-    /** @var GeneratorInterface */
+    /** @var GeneratorInterface Chart generation methods. */
     protected $generator;
 
-    /** @var BudgetRepositoryInterface */
+    /** @var BudgetRepositoryInterface The budget repository */
     protected $repository;
 
     /**
@@ -75,6 +75,8 @@ class BudgetController extends Controller
 
 
     /**
+     * Shows overview of a single budget.
+     *
      * @param Budget $budget
      *
      * @return JsonResponse
@@ -123,7 +125,6 @@ class BudgetController extends Controller
     /**
      * Shows the amount left in a specific budget limit.
      *
-     *
      * @param Budget      $budget
      * @param BudgetLimit $budgetLimit
      *
@@ -169,6 +170,8 @@ class BudgetController extends Controller
 
 
     /**
+     * Shows how much is spent per asset account.
+     *
      * @param Budget           $budget
      * @param BudgetLimit|null $budgetLimit
      *
@@ -217,6 +220,8 @@ class BudgetController extends Controller
 
 
     /**
+     * Shows how much is spent per category.
+     *
      * @param Budget           $budget
      * @param BudgetLimit|null $budgetLimit
      *
@@ -266,6 +271,8 @@ class BudgetController extends Controller
 
 
     /**
+     * Shows how much is spent per expense account.
+     *
      * @param Budget           $budget
      * @param BudgetLimit|null $budgetLimit
      *
@@ -370,6 +377,7 @@ class BudgetController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Shows a budget overview chart (spent and budgeted).
      *
      * @param Budget     $budget
      * @param Carbon     $start
@@ -415,6 +423,8 @@ class BudgetController extends Controller
 
 
     /**
+     * Shows a chart for transactions without a budget.
+     *
      * @param Collection $accounts
      * @param Carbon     $start
      * @param Carbon     $end
@@ -451,6 +461,8 @@ class BudgetController extends Controller
     }
 
     /**
+     * Get the account names belonging to a bunch of account ID's.
+     *
      * @param array $accountIds
      *
      * @return array
@@ -473,6 +485,8 @@ class BudgetController extends Controller
     }
 
     /**
+     * Get the amount of money budgeted in a period.
+     *
      * @param Budget $budget
      * @param Carbon $start
      * @param Carbon $end
@@ -501,7 +515,9 @@ class BudgetController extends Controller
     }
 
     /**
-     * Small helper function for some of the charts.
+     * Small helper function for some of the charts. Extracts category names from a bunch of ID's.
+     *
+     * TODO this method is duplicated and should be in a trait.
      *
      * @param array $categoryIds
      *
@@ -526,6 +542,7 @@ class BudgetController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Get the expenses for a budget in a date range.
      *
      * @param Collection $limits
      * @param Budget     $budget
diff --git a/app/Http/Controllers/Chart/BudgetReportController.php b/app/Http/Controllers/Chart/BudgetReportController.php
index 386c910663..7bfbcaff22 100644
--- a/app/Http/Controllers/Chart/BudgetReportController.php
+++ b/app/Http/Controllers/Chart/BudgetReportController.php
@@ -48,13 +48,13 @@ use Illuminate\Support\Collection;
  */
 class BudgetReportController extends Controller
 {
-    /** @var BudgetRepositoryInterface */
+    /** @var BudgetRepositoryInterface The budget repository */
     private $budgetRepository;
-    /** @var GeneratorInterface */
+    /** @var GeneratorInterface Chart generation methods. */
     private $generator;
 
     /**
-     *
+     * BudgetReportController constructor.
      */
     public function __construct()
     {
@@ -71,6 +71,8 @@ class BudgetReportController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Chart that groups expenses by the account.
+     *
      * @param Collection $accounts
      * @param Collection $budgets
      * @param Carbon     $start
@@ -98,6 +100,8 @@ class BudgetReportController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Chart that groups the expenses by budget.
+     *
      * @param Collection $accounts
      * @param Collection $budgets
      * @param Carbon     $start
@@ -125,6 +129,8 @@ class BudgetReportController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Main overview of a budget in the budget report.
+     *
      * @param Collection $accounts
      * @param Collection $budgets
      * @param Carbon     $start
@@ -242,6 +248,8 @@ class BudgetReportController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Helper function that collects expenses for the given budgets.
+     *
      * @param Collection $accounts
      * @param Collection $budgets
      * @param Carbon     $start
@@ -264,6 +272,8 @@ class BudgetReportController extends Controller
     }
 
     /**
+     * Helper function that groups expenses.
+     *
      * @param Collection $set
      *
      * @return array
diff --git a/app/Http/Controllers/Chart/CategoryController.php b/app/Http/Controllers/Chart/CategoryController.php
index a942eb8125..eb3f9559e7 100644
--- a/app/Http/Controllers/Chart/CategoryController.php
+++ b/app/Http/Controllers/Chart/CategoryController.php
@@ -38,11 +38,11 @@ use Illuminate\Support\Collection;
  */
 class CategoryController extends Controller
 {
-    /** @var GeneratorInterface */
+    /** @var GeneratorInterface Chart generation methods. */
     protected $generator;
 
     /**
-     *
+     * CategoryController constructor.
      */
     public function __construct()
     {
@@ -112,6 +112,8 @@ class CategoryController extends Controller
 
 
     /**
+     * Shows the category chart on the front page.
+     *
      * @param CategoryRepositoryInterface $repository
      * @param AccountRepositoryInterface  $accountRepository
      *
@@ -154,6 +156,8 @@ class CategoryController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Chart report.
+     *
      * @param Category   $category
      * @param Collection $accounts
      * @param Carbon     $start
@@ -215,6 +219,8 @@ class CategoryController extends Controller
 
 
     /**
+     * Chart for period for transactions without a category.
+     *
      * @param Collection $accounts
      * @param Carbon     $start
      * @param Carbon     $end
@@ -272,6 +278,8 @@ class CategoryController extends Controller
     }
 
     /**
+     * Chart for a specific period.
+     *
      * @param Category                    $category
      * @param                             $date
      *
@@ -289,6 +297,8 @@ class CategoryController extends Controller
 
 
     /**
+     * Chart for a specific period (start and end).
+     *
      * @param Category $category
      * @param Carbon   $start
      * @param Carbon   $end
diff --git a/app/Http/Controllers/Chart/CategoryReportController.php b/app/Http/Controllers/Chart/CategoryReportController.php
index 1b5d8f6099..a5b362e320 100644
--- a/app/Http/Controllers/Chart/CategoryReportController.php
+++ b/app/Http/Controllers/Chart/CategoryReportController.php
@@ -45,11 +45,11 @@ use Illuminate\Support\Collection;
  */
 class CategoryReportController extends Controller
 {
-    /** @var GeneratorInterface */
+    /** @var GeneratorInterface Chart generation methods. */
     private $generator;
 
     /**
-     *
+     * CategoryReportController constructor.
      */
     public function __construct()
     {
@@ -65,6 +65,8 @@ class CategoryReportController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Chart for expenses grouped by expense account.
+     *
      * @param Collection $accounts
      * @param Collection $categories
      * @param Carbon     $start
@@ -89,6 +91,8 @@ class CategoryReportController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Chart for income grouped by revenue account.
+     *
      * @param Collection $accounts
      * @param Collection $categories
      * @param Carbon     $start
@@ -116,6 +120,8 @@ class CategoryReportController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Chart for expenses grouped by expense account.
+     *
      * @param Collection $accounts
      * @param Collection $categories
      * @param Carbon     $start
@@ -143,6 +149,8 @@ class CategoryReportController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Piechart for income grouped by account.
+     *
      * @param Collection $accounts
      * @param Collection $categories
      * @param Carbon     $start
@@ -170,6 +178,8 @@ class CategoryReportController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Main report category chart.
+     *
      * @param Collection $accounts
      * @param Collection $categories
      * @param Carbon     $start
@@ -281,6 +291,8 @@ class CategoryReportController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Get all expenses in a period for categories.
+     *
      * @param Collection $accounts
      * @param Collection $categories
      * @param Carbon     $start
@@ -306,6 +318,8 @@ class CategoryReportController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Get all income for a period and a bunch of categories.
+     *
      * @param Collection $accounts
      * @param Collection $categories
      * @param Carbon     $start
@@ -327,6 +341,8 @@ class CategoryReportController extends Controller
     }
 
     /**
+     * Group transactions by category.
+     *
      * @param Collection $set
      *
      * @return array
diff --git a/app/Http/Controllers/Chart/ExpenseReportController.php b/app/Http/Controllers/Chart/ExpenseReportController.php
index 0621985ff4..a34f0253da 100644
--- a/app/Http/Controllers/Chart/ExpenseReportController.php
+++ b/app/Http/Controllers/Chart/ExpenseReportController.php
@@ -45,7 +45,7 @@ class ExpenseReportController extends Controller
 {
     /** @var AccountRepositoryInterface The account repository */
     protected $accountRepository;
-    /** @var GeneratorInterface */
+    /** @var GeneratorInterface Chart generation methods. */
     protected $generator;
 
     /**
@@ -66,6 +66,8 @@ class ExpenseReportController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Main chart that shows income and expense for a combination of expense/revenue accounts.
+     *
      * @param Collection $accounts
      * @param Collection $expense
      * @param Carbon     $start
@@ -191,6 +193,8 @@ class ExpenseReportController extends Controller
     }
 
     /**
+     * Searches for the opposing account.
+     *
      * @param Collection $accounts
      *
      * @return array
@@ -214,6 +218,8 @@ class ExpenseReportController extends Controller
     }
 
     /**
+     * Get all expenses for a set of accounts.
+     *
      * @param Collection $accounts
      * @param Collection $opposing
      * @param Carbon     $start
@@ -231,6 +237,8 @@ class ExpenseReportController extends Controller
     }
 
     /**
+     * Get the income for a set of accounts.
+     *
      * @param Collection $accounts
      * @param Collection $opposing
      * @param Carbon     $start
@@ -249,6 +257,8 @@ class ExpenseReportController extends Controller
     }
 
     /**
+     * Group set of transactions by name of opposing account.
+     *
      * @param Collection $set
      *
      * @return array
diff --git a/app/Http/Controllers/Chart/PiggyBankController.php b/app/Http/Controllers/Chart/PiggyBankController.php
index f9b2aba5db..a22122839b 100644
--- a/app/Http/Controllers/Chart/PiggyBankController.php
+++ b/app/Http/Controllers/Chart/PiggyBankController.php
@@ -39,11 +39,11 @@ use Illuminate\Support\Collection;
 class PiggyBankController extends Controller
 {
     use DateCalculation;
-    /** @var GeneratorInterface */
+    /** @var GeneratorInterface Chart generation methods. */
     protected $generator;
 
     /**
-     *
+     * PiggyBankController constructor.
      */
     public function __construct()
     {
diff --git a/app/Http/Controllers/Chart/ReportController.php b/app/Http/Controllers/Chart/ReportController.php
index 492013e393..53b26958c2 100644
--- a/app/Http/Controllers/Chart/ReportController.php
+++ b/app/Http/Controllers/Chart/ReportController.php
@@ -36,11 +36,11 @@ use Log;
  */
 class ReportController extends Controller
 {
-    /** @var GeneratorInterface */
+    /** @var GeneratorInterface Chart generation methods. */
     protected $generator;
 
     /**
-     *
+     * ReportController constructor.
      */
     public function __construct()
     {
@@ -220,6 +220,8 @@ class ReportController extends Controller
     }
 
     /**
+     * Sum up an array.
+     *
      * @param $array
      *
      * @return string
diff --git a/app/Http/Controllers/Chart/TagReportController.php b/app/Http/Controllers/Chart/TagReportController.php
index 09b1583aec..c8401452df 100644
--- a/app/Http/Controllers/Chart/TagReportController.php
+++ b/app/Http/Controllers/Chart/TagReportController.php
@@ -44,11 +44,11 @@ use Illuminate\Support\Collection;
  */
 class TagReportController extends Controller
 {
-    /** @var GeneratorInterface */
+    /** @var GeneratorInterface Chart generation methods. */
     protected $generator;
 
     /**
-     *
+     * TagReportController constructor.
      */
     public function __construct()
     {
@@ -59,6 +59,8 @@ class TagReportController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Generate expenses for tags grouped on account.
+     *
      * @param Collection $accounts
      * @param Collection $tags
      * @param Carbon     $start
@@ -86,6 +88,8 @@ class TagReportController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Generate income for tag grouped by account.
+     *
      * @param Collection $accounts
      * @param Collection $tags
      * @param Carbon     $start
@@ -113,6 +117,8 @@ class TagReportController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Generate expense for tag grouped on budget.
+     *
      * @param Collection $accounts
      * @param Collection $tags
      * @param Carbon     $start
@@ -139,6 +145,8 @@ class TagReportController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Generate expense for tag grouped on category.
+     *
      * @param Collection $accounts
      * @param Collection $tags
      * @param Carbon     $start
@@ -165,6 +173,8 @@ class TagReportController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Generate main tag overview chart.
+     *
      * @param Collection $accounts
      * @param Collection $tags
      * @param Carbon     $start
@@ -276,6 +286,8 @@ class TagReportController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Show expense grouped by expense account.
+     *
      * @param Collection $accounts
      * @param Collection $tags
      * @param Carbon     $start
@@ -303,6 +315,8 @@ class TagReportController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Show income grouped by tag.
+     *
      * @param Collection $accounts
      * @param Collection $tags
      * @param Carbon     $start
@@ -330,6 +344,8 @@ class TagReportController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Get all expenses by tags.
+     *
      * @param Collection $accounts
      * @param Collection $tags
      * @param Carbon     $start
@@ -355,6 +371,8 @@ class TagReportController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Get all income by tag.
+     *
      * @param Collection $accounts
      * @param Collection $tags
      * @param Carbon     $start
@@ -378,6 +396,8 @@ class TagReportController extends Controller
     }
 
     /**
+     * Group transactions by tag.
+     *
      * @param Collection $set
      *
      * @return array
diff --git a/app/Http/Controllers/Import/IndexController.php b/app/Http/Controllers/Import/IndexController.php
index 27c83fa0b6..89a818fa5d 100644
--- a/app/Http/Controllers/Import/IndexController.php
+++ b/app/Http/Controllers/Import/IndexController.php
@@ -32,19 +32,20 @@ use Illuminate\Http\Response as LaravelResponse;
 use Log;
 
 /**
- * Class FileController.
+ *
+ * Class IndexController
  */
 class IndexController extends Controller
 {
     /** @var array */
     public $providers;
-    /** @var ImportJobRepositoryInterface */
+    /** @var ImportJobRepositoryInterface The import job repository */
     public $repository;
     /** @var UserRepositoryInterface */
     public $userRepository;
 
     /**
-     *
+     * IndexController constructor.
      */
     public function __construct()
     {
diff --git a/app/Http/Controllers/Import/JobConfigurationController.php b/app/Http/Controllers/Import/JobConfigurationController.php
index ae5daddcf3..caaeee9825 100644
--- a/app/Http/Controllers/Import/JobConfigurationController.php
+++ b/app/Http/Controllers/Import/JobConfigurationController.php
@@ -37,11 +37,11 @@ use Log;
  */
 class JobConfigurationController extends Controller
 {
-    /** @var ImportJobRepositoryInterface */
+    /** @var ImportJobRepositoryInterface The import job repository */
     public $repository;
 
     /**
-     *
+     * JobConfigurationController constructor.
      */
     public function __construct()
     {
@@ -162,6 +162,8 @@ class JobConfigurationController extends Controller
     }
 
     /**
+     * Make a configurator object.
+     *
      * @param ImportJob $importJob
      *
      * @return JobConfigurationInterface
diff --git a/app/Http/Controllers/Import/JobStatusController.php b/app/Http/Controllers/Import/JobStatusController.php
index fea52a3f06..57e96cee6e 100644
--- a/app/Http/Controllers/Import/JobStatusController.php
+++ b/app/Http/Controllers/Import/JobStatusController.php
@@ -37,11 +37,11 @@ use Log;
  */
 class JobStatusController extends Controller
 {
-    /** @var ImportJobRepositoryInterface */
+    /** @var ImportJobRepositoryInterface The import job repository */
     private $repository;
 
     /**
-     *
+     * JobStatusController constructor.
      */
     public function __construct()
     {
@@ -59,6 +59,8 @@ class JobStatusController extends Controller
     }
 
     /**
+     * Index for job status.
+     *
      * @param ImportJob $importJob
      *
      * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
@@ -72,6 +74,8 @@ class JobStatusController extends Controller
     }
 
     /**
+     * JSON overview of job status.
+     *
      * @param ImportJob $importJob
      *
      * @return JsonResponse
@@ -120,6 +124,8 @@ class JobStatusController extends Controller
     }
 
     /**
+     * Calls to start the job.
+     *
      * @param ImportJob $importJob
      *
      * @return JsonResponse
@@ -214,6 +220,8 @@ class JobStatusController extends Controller
     }
 
     /**
+     * Store the transactions.
+     *
      * @param ImportJob $importJob
      *
      * @throws FireflyException
diff --git a/app/Http/Controllers/Import/PrerequisitesController.php b/app/Http/Controllers/Import/PrerequisitesController.php
index c705286b95..74835d62f9 100644
--- a/app/Http/Controllers/Import/PrerequisitesController.php
+++ b/app/Http/Controllers/Import/PrerequisitesController.php
@@ -36,11 +36,11 @@ use Log;
 class PrerequisitesController extends Controller
 {
 
-    /** @var ImportJobRepositoryInterface */
+    /** @var ImportJobRepositoryInterface The import job repository */
     private $repository;
 
     /**
-     *
+     * PrerequisitesController constructor.
      */
     public function __construct()
     {
diff --git a/app/Http/Controllers/Json/AutoCompleteController.php b/app/Http/Controllers/Json/AutoCompleteController.php
index 081a76641a..8e89ac4dd7 100644
--- a/app/Http/Controllers/Json/AutoCompleteController.php
+++ b/app/Http/Controllers/Json/AutoCompleteController.php
@@ -66,6 +66,8 @@ class AutoCompleteController extends Controller
     }
 
     /**
+     * List of all journals.
+     *
      * @param JournalCollectorInterface $collector
      *
      * @return JsonResponse
@@ -97,6 +99,8 @@ class AutoCompleteController extends Controller
     }
 
     /**
+     * List of budgets.
+     *
      * @param BudgetRepositoryInterface $repository
      *
      * @return JsonResponse
@@ -125,6 +129,8 @@ class AutoCompleteController extends Controller
     }
 
     /**
+     * List of currency names.
+     *
      * @param CurrencyRepositoryInterface $repository
      *
      * @return JsonResponse
@@ -165,6 +171,8 @@ class AutoCompleteController extends Controller
 
 
     /**
+     * List of journals with their ID.
+     *
      * @param JournalCollectorInterface $collector
      * @param TransactionJournal        $except
      *
@@ -198,6 +206,8 @@ class AutoCompleteController extends Controller
     }
 
     /**
+     * List of revenue accounts.
+     *
      * @param AccountRepositoryInterface $repository
      *
      * @return JsonResponse
@@ -236,6 +246,8 @@ class AutoCompleteController extends Controller
     }
 
     /**
+     * List of journals by type.
+     *
      * @param JournalCollectorInterface $collector
      * @param string                    $what
      *
@@ -254,6 +266,8 @@ class AutoCompleteController extends Controller
     }
 
     /**
+     * List if transaction types.
+     *
      * @param JournalRepositoryInterface $repository
      *
      * @return JsonResponse
diff --git a/app/Http/Controllers/Json/BoxController.php b/app/Http/Controllers/Json/BoxController.php
index 5b0a1f4275..c8947f213e 100644
--- a/app/Http/Controllers/Json/BoxController.php
+++ b/app/Http/Controllers/Json/BoxController.php
@@ -44,6 +44,8 @@ class BoxController extends Controller
 {
 
     /**
+     * How much money user has available.
+     *
      * @param BudgetRepositoryInterface $repository
      *
      * @return JsonResponse
@@ -98,6 +100,8 @@ class BoxController extends Controller
 
 
     /**
+     * Current total balance.
+     *
      * @param CurrencyRepositoryInterface $repository
      *
      * @return JsonResponse
@@ -183,6 +187,8 @@ class BoxController extends Controller
 
 
     /**
+     * Bills to pay and paid.
+     *
      * @param BillRepositoryInterface $repository
      *
      * @return JsonResponse
@@ -219,6 +225,8 @@ class BoxController extends Controller
 
 
     /**
+     * Total user net worth.
+     *
      * @param AccountRepositoryInterface $repository
      *
      * @return JsonResponse
@@ -282,6 +290,8 @@ class BoxController extends Controller
     }
 
     /**
+     * Get a currency or return default currency.
+     *
      * @param Account $account
      *
      * @return TransactionCurrency
@@ -307,6 +317,8 @@ class BoxController extends Controller
     }
 
     /**
+     * Check if date is outside session range.
+     *
      * @param Carbon $date
      *
      * @return bool
diff --git a/app/Http/Controllers/Json/ExchangeController.php b/app/Http/Controllers/Json/ExchangeController.php
index 85e3b510ca..19a65f37d8 100644
--- a/app/Http/Controllers/Json/ExchangeController.php
+++ b/app/Http/Controllers/Json/ExchangeController.php
@@ -39,6 +39,8 @@ class ExchangeController extends Controller
 {
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Returns an exchange rate.
+     *
      * @param Request             $request
      * @param TransactionCurrency $fromCurrency
      * @param TransactionCurrency $toCurrency
diff --git a/app/Http/Controllers/Json/FrontpageController.php b/app/Http/Controllers/Json/FrontpageController.php
index b6021c3917..b27dec9585 100644
--- a/app/Http/Controllers/Json/FrontpageController.php
+++ b/app/Http/Controllers/Json/FrontpageController.php
@@ -33,10 +33,12 @@ use Illuminate\Http\JsonResponse;
 class FrontpageController extends Controller
 {
     /**
+     * Piggy bank pie chart.
+     *
      * @param PiggyBankRepositoryInterface $repository
      *
      * @return JsonResponse
-
+     * @throws \Throwable
      */
     public function piggyBanks(PiggyBankRepositoryInterface $repository): JsonResponse
     {
diff --git a/app/Http/Controllers/Json/IntroController.php b/app/Http/Controllers/Json/IntroController.php
index 354310e15a..f146e06091 100644
--- a/app/Http/Controllers/Json/IntroController.php
+++ b/app/Http/Controllers/Json/IntroController.php
@@ -31,6 +31,8 @@ use Log;
 class IntroController
 {
     /**
+     * Returns the introduction wizard for a page.
+     *
      * @param string      $route
      * @param string|null $specificPage
      *
@@ -66,6 +68,8 @@ class IntroController
     }
 
     /**
+     * Returns true if there is a general outro step.
+     *
      * @param string $route
      *
      * @return bool
@@ -89,6 +93,8 @@ class IntroController
     }
 
     /**
+     * Enable the boxes for a specific page again.
+     *
      * @param string      $route
      * @param string|null $specialPage
      *
@@ -109,6 +115,8 @@ class IntroController
     }
 
     /**
+     * Set that you saw them.
+     *
      * @param string      $route
      * @param string|null $specialPage
      *
@@ -128,6 +136,8 @@ class IntroController
     }
 
     /**
+     * Get the basic steps from config.
+     *
      * @param string $route
      *
      * @return array
@@ -154,6 +164,8 @@ class IntroController
     }
 
     /**
+     * Get specific info for special routes.
+     *
      * @param string $route
      * @param string $specificPage
      *
diff --git a/app/Http/Controllers/Json/ReconcileController.php b/app/Http/Controllers/Json/ReconcileController.php
index 193d9d87c9..d2ba3939c0 100644
--- a/app/Http/Controllers/Json/ReconcileController.php
+++ b/app/Http/Controllers/Json/ReconcileController.php
@@ -34,7 +34,6 @@ use FireflyIII\Models\Transaction;
 use FireflyIII\Repositories\Account\AccountRepositoryInterface;
 use FireflyIII\Repositories\Currency\CurrencyRepositoryInterface;
 use FireflyIII\Repositories\Journal\JournalRepositoryInterface;
-use FireflyIII\Services\Internal\Update\CurrencyUpdateService;
 use Illuminate\Http\JsonResponse;
 use Illuminate\Http\Request;
 use Illuminate\Support\Collection;
@@ -48,15 +47,15 @@ use Illuminate\Support\Collection;
 class ReconcileController extends Controller
 {
 
-    /** @var CurrencyUpdateService */
-    private $accountRepos;
     /** @var AccountRepositoryInterface The account repository */
+    private $accountRepos;
+    /** @var CurrencyRepositoryInterface The currency repository */
     private $currencyRepos;
     /** @var JournalRepositoryInterface Journals and transactions overview */
     private $repository;
 
     /**
-     *
+     * ReconcileController constructor.
      */
     public function __construct()
     {
@@ -78,6 +77,8 @@ class ReconcileController extends Controller
 
     /** @noinspection MoreThanThreeArgumentsInspection */
     /**
+     * Overview of reconciliation.
+     *
      * @param Request $request
      * @param Account $account
      * @param Carbon  $start
@@ -86,10 +87,10 @@ class ReconcileController extends Controller
      * @return JsonResponse
      *
      * @throws FireflyException
-
      *
      * @SuppressWarnings(PHPMD.CyclomaticComplexity)
      * @SuppressWarnings(PHPMD.ExcessiveMethodLength)
+     * @throws \Throwable
      */
     public function overview(Request $request, Account $account, Carbon $start, Carbon $end): JsonResponse
     {
@@ -138,6 +139,8 @@ class ReconcileController extends Controller
 
 
     /**
+     * Returns a list of transactions in a modal.
+     *
      * @param Account $account
      * @param Carbon  $start
      * @param Carbon  $end
@@ -145,7 +148,7 @@ class ReconcileController extends Controller
      * @return mixed
      *
      * @throws FireflyException
-
+     * @throws \Throwable
      */
     public function transactions(Account $account, Carbon $start, Carbon $end)
     {
@@ -185,6 +188,8 @@ class ReconcileController extends Controller
     }
 
     /**
+     * Redirect to actual account.
+     *
      * @param Account $account
      *
      * @return \Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector
diff --git a/app/Http/Controllers/Json/RecurrenceController.php b/app/Http/Controllers/Json/RecurrenceController.php
index 0192e4f099..a1b4af1b9f 100644
--- a/app/Http/Controllers/Json/RecurrenceController.php
+++ b/app/Http/Controllers/Json/RecurrenceController.php
@@ -37,11 +37,11 @@ use Illuminate\Http\Request;
  */
 class RecurrenceController extends Controller
 {
-    /** @var RecurringRepositoryInterface */
+    /** @var RecurringRepositoryInterface The recurring repository. */
     private $recurring;
 
     /**
-     *
+     * RecurrenceController constructor.
      */
     public function __construct()
     {
@@ -58,6 +58,8 @@ class RecurrenceController extends Controller
     }
 
     /**
+     * Shows all events for a repetition. Used in calendar.
+     *
      * @param Request $request
      *
      * @throws FireflyException
@@ -139,6 +141,8 @@ class RecurrenceController extends Controller
     }
 
     /**
+     * Suggests repetition moments.
+     *
      * @param Request $request
      *
      * @return JsonResponse
diff --git a/app/Http/Controllers/Popup/ReportController.php b/app/Http/Controllers/Popup/ReportController.php
index 84bdb38e87..a9633c1826 100644
--- a/app/Http/Controllers/Popup/ReportController.php
+++ b/app/Http/Controllers/Popup/ReportController.php
@@ -46,15 +46,15 @@ class ReportController extends Controller
 {
     /** @var AccountRepositoryInterface The account repository */
     private $accountRepository;
-    /** @var BudgetRepositoryInterface */
+    /** @var BudgetRepositoryInterface The budget repository */
     private $budgetRepository;
-    /** @var CategoryRepositoryInterface */
+    /** @var CategoryRepositoryInterface The category repository */
     private $categoryRepository;
-    /** @var PopupReportInterface */
+    /** @var PopupReportInterface Various helper functions. */
     private $popupHelper;
 
     /**
-     *
+     * ReportController constructor.
      */
     public function __construct()
     {
@@ -79,6 +79,7 @@ class ReportController extends Controller
     }
 
     /**
+     * Generate popup view.
      * @param Request $request
      *
      * @return JsonResponse
@@ -117,6 +118,8 @@ class ReportController extends Controller
     }
 
     /**
+     * View for balance row.
+     *
      * @param array $attributes
      *
      * @return string
@@ -155,6 +158,8 @@ class ReportController extends Controller
     }
 
     /**
+     * View for spent in a single budget.
+     *
      * @param array $attributes
      *
      * @return string
@@ -177,6 +182,8 @@ class ReportController extends Controller
     }
 
     /**
+     * View for transactions in a category.
+     *
      * @param array $attributes
      *
      * @return string
@@ -253,6 +260,8 @@ class ReportController extends Controller
     }
 
     /**
+     * Parses attributes from URI.
+     *
      * @param array $attributes
      *
      * @return array
diff --git a/app/Http/Controllers/Recurring/CreateController.php b/app/Http/Controllers/Recurring/CreateController.php
index 6596075f05..08b0d7b195 100644
--- a/app/Http/Controllers/Recurring/CreateController.php
+++ b/app/Http/Controllers/Recurring/CreateController.php
@@ -38,13 +38,13 @@ use Illuminate\Http\Request;
  */
 class CreateController extends Controller
 {
-    /** @var BudgetRepositoryInterface */
+    /** @var BudgetRepositoryInterface The budget repository */
     private $budgets;
-    /** @var RecurringRepositoryInterface */
+    /** @var RecurringRepositoryInterface Recurring repository */
     private $recurring;
 
     /**
-     *
+     * CreateController constructor.
      */
     public function __construct()
     {
@@ -66,6 +66,8 @@ class CreateController extends Controller
     }
 
     /**
+     * Create a new recurring transaction.
+     *
      * @param Request $request
      *
      * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
@@ -113,6 +115,8 @@ class CreateController extends Controller
 
 
     /**
+     * Store a recurring transaction.
+     *
      * @param RecurrenceFormRequest $request
      *
      * @return \Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector
diff --git a/app/Http/Controllers/Recurring/DeleteController.php b/app/Http/Controllers/Recurring/DeleteController.php
index 2081551457..e097298031 100644
--- a/app/Http/Controllers/Recurring/DeleteController.php
+++ b/app/Http/Controllers/Recurring/DeleteController.php
@@ -34,11 +34,11 @@ use Illuminate\Http\Request;
  */
 class DeleteController extends Controller
 {
-    /** @var RecurringRepositoryInterface */
+    /** @var RecurringRepositoryInterface Recurring repository */
     private $recurring;
 
     /**
-     *
+     * DeleteController constructor.
      */
     public function __construct()
     {
@@ -58,6 +58,8 @@ class DeleteController extends Controller
     }
 
     /**
+     * Delete a recurring transaction form.
+     *
      * @param Recurrence $recurrence
      *
      * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
@@ -68,13 +70,14 @@ class DeleteController extends Controller
         // put previous url in session
         $this->rememberPreviousUri('recurrences.delete.uri');
 
-        // todo actual number.
         $journalsCreated = $this->recurring->getTransactions($recurrence)->count();
 
         return view('recurring.delete', compact('recurrence', 'subTitle', 'journalsCreated'));
     }
 
     /**
+     * Destroy the recurring transaction.
+     *
      * @param RecurringRepositoryInterface $repository
      * @param Request                      $request
      * @param Recurrence                   $recurrence
diff --git a/app/Http/Controllers/Recurring/EditController.php b/app/Http/Controllers/Recurring/EditController.php
index 4eed6f3f09..237ac6ccce 100644
--- a/app/Http/Controllers/Recurring/EditController.php
+++ b/app/Http/Controllers/Recurring/EditController.php
@@ -40,13 +40,13 @@ use Symfony\Component\HttpFoundation\ParameterBag;
  */
 class EditController extends Controller
 {
-    /** @var BudgetRepositoryInterface */
+    /** @var BudgetRepositoryInterface The budget repository */
     private $budgets;
-    /** @var RecurringRepositoryInterface */
+    /** @var RecurringRepositoryInterface Recurring repository */
     private $recurring;
 
     /**
-     *
+     * EditController constructor.
      */
     public function __construct()
     {
@@ -68,6 +68,8 @@ class EditController extends Controller
     }
 
     /**
+     * Edit a recurring transaction.
+     *
      * todo move to repository
      * todo handle old repetition type as well.
      *
@@ -133,6 +135,8 @@ class EditController extends Controller
     }
 
     /**
+     * Update the recurring transaction.
+     *
      * @param RecurrenceFormRequest $request
      * @param Recurrence            $recurrence
      *
diff --git a/app/Http/Controllers/Recurring/IndexController.php b/app/Http/Controllers/Recurring/IndexController.php
index 51e4a0215f..959deea821 100644
--- a/app/Http/Controllers/Recurring/IndexController.php
+++ b/app/Http/Controllers/Recurring/IndexController.php
@@ -39,11 +39,11 @@ use Symfony\Component\HttpFoundation\ParameterBag;
  */
 class IndexController extends Controller
 {
-    /** @var RecurringRepositoryInterface */
+    /** @var RecurringRepositoryInterface Recurring repository */
     private $recurring;
 
     /**
-     *
+     * IndexController constructor.
      */
     public function __construct()
     {
@@ -63,6 +63,8 @@ class IndexController extends Controller
     }
 
     /**
+     * Show all recurring transactions.
+     *
      * TODO: split collection into pages
      *
      * @param Request $request
@@ -93,6 +95,8 @@ class IndexController extends Controller
     }
 
     /**
+     * Show a single recurring transaction.
+     *
      * @param Request    $request
      * @param Recurrence $recurrence
      *
diff --git a/app/Http/Controllers/ReportController.php b/app/Http/Controllers/ReportController.php
index 416419a6d7..72dd7fd1d0 100644
--- a/app/Http/Controllers/ReportController.php
+++ b/app/Http/Controllers/ReportController.php
@@ -46,7 +46,7 @@ class ReportController extends Controller
     /** @var ReportHelperInterface */
     protected $helper;
 
-    /** @var BudgetRepositoryInterface */
+    /** @var BudgetRepositoryInterface The budget repository */
     private $repository;
 
     /**
diff --git a/app/Http/Controllers/Transaction/SingleController.php b/app/Http/Controllers/Transaction/SingleController.php
index 7223bb1004..2ee79eb35f 100644
--- a/app/Http/Controllers/Transaction/SingleController.php
+++ b/app/Http/Controllers/Transaction/SingleController.php
@@ -48,7 +48,7 @@ class SingleController extends Controller
 {
     /** @var AttachmentHelperInterface */
     private $attachments;
-    /** @var BudgetRepositoryInterface */
+    /** @var BudgetRepositoryInterface The budget repository */
     private $budgets;
     /** @var JournalRepositoryInterface Journals and transactions overview */
     private $repository;
diff --git a/app/Http/Controllers/Transaction/SplitController.php b/app/Http/Controllers/Transaction/SplitController.php
index 87faaf510c..528fe9e60d 100644
--- a/app/Http/Controllers/Transaction/SplitController.php
+++ b/app/Http/Controllers/Transaction/SplitController.php
@@ -49,7 +49,7 @@ class SplitController extends Controller
     /** @var AttachmentHelperInterface */
     private $attachments;
 
-    /** @var BudgetRepositoryInterface */
+    /** @var BudgetRepositoryInterface The budget repository */
     private $budgets;
 
     /** @var CurrencyRepositoryInterface The currency repository */