diff --git a/app/Http/Controllers/Chart/AccountController.php b/app/Http/Controllers/Chart/AccountController.php
index 806b4b8a04..dba8f5e4d8 100644
--- a/app/Http/Controllers/Chart/AccountController.php
+++ b/app/Http/Controllers/Chart/AccountController.php
@@ -119,8 +119,8 @@ class AccountController extends Controller
 
                 // see if there is an accompanying start amount.
                 // grab the difference and find the currency.
-                $startAmount             = $startBalances[$accountId][$currencyId] ?? '0';
-                $diff                    = bcsub($endAmount, $startAmount);
+                $startAmount             = (string) ($startBalances[$accountId][$currencyId] ?? '0');
+                $diff                    = bcsub((string)$endAmount, $startAmount);
                 $currencies[$currencyId] = $currencies[$currencyId] ?? $this->currencyRepository->find($currencyId);
                 if (0 !== bccomp($diff, '0')) {
                     // store the values in a temporary array.
@@ -578,8 +578,8 @@ class AccountController extends Controller
 
                 // see if there is an accompanying start amount.
                 // grab the difference and find the currency.
-                $startAmount             = $startBalances[$accountId][$currencyId] ?? '0';
-                $diff                    = bcsub($endAmount, $startAmount);
+                $startAmount             = (string)($startBalances[$accountId][$currencyId] ?? '0');
+                $diff                    = bcsub((string) $endAmount, $startAmount);
                 $currencies[$currencyId] = $currencies[$currencyId] ?? $this->currencyRepository->find($currencyId);
                 if (0 !== bccomp($diff, '0')) {
                     // store the values in a temporary array.
diff --git a/app/Models/Bill.php b/app/Models/Bill.php
index ecd0cc1d7b..3d76819c94 100644
--- a/app/Models/Bill.php
+++ b/app/Models/Bill.php
@@ -24,6 +24,7 @@ namespace FireflyIII\Models;
 
 use Eloquent;
 use FireflyIII\User;
+use Illuminate\Database\Eloquent\Casts\Attribute;
 use Illuminate\Database\Eloquent\Collection;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
@@ -223,4 +224,28 @@ class Bill extends Model
     {
         return $this->belongsTo(User::class);
     }
+
+    /**
+     * Get the max amount
+     *
+     * @return Attribute
+     */
+    protected function amountMax(): Attribute
+    {
+        return Attribute::make(
+            get: fn($value) => (string) $value,
+        );
+    }
+
+    /**
+     * Get the min amount
+     *
+     * @return Attribute
+     */
+    protected function amountMin(): Attribute
+    {
+        return Attribute::make(
+            get: fn($value) => (string) $value,
+        );
+    }
 }
diff --git a/app/Models/BudgetLimit.php b/app/Models/BudgetLimit.php
index 2c398d4223..aff5ed5157 100644
--- a/app/Models/BudgetLimit.php
+++ b/app/Models/BudgetLimit.php
@@ -24,6 +24,7 @@ namespace FireflyIII\Models;
 
 use Eloquent;
 use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Database\Eloquent\Casts\Attribute;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 use Illuminate\Support\Carbon;
@@ -119,4 +120,16 @@ class BudgetLimit extends Model
     {
         return $this->belongsTo(TransactionCurrency::class);
     }
+
+    /**
+     * Get the amount
+     *
+     * @return Attribute
+     */
+    protected function amount(): Attribute
+    {
+        return Attribute::make(
+            get: fn($value) => (string) $value,
+        );
+    }
 }
diff --git a/app/Models/Transaction.php b/app/Models/Transaction.php
index 58d4d9a6cf..346a521db7 100644
--- a/app/Models/Transaction.php
+++ b/app/Models/Transaction.php
@@ -25,6 +25,7 @@ namespace FireflyIII\Models;
 use Carbon\Carbon;
 use Eloquent;
 use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Database\Eloquent\Casts\Attribute;
 use Illuminate\Database\Eloquent\Collection;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
@@ -256,4 +257,28 @@ class Transaction extends Model
     {
         return $this->belongsTo(TransactionJournal::class);
     }
+
+    /**
+     * Get the amount
+     *
+     * @return Attribute
+     */
+    protected function amount(): Attribute
+    {
+        return Attribute::make(
+            get: fn($value) => (string) $value,
+        );
+    }
+
+    /**
+     * Get the foreign amount
+     *
+     * @return Attribute
+     */
+    protected function foreignAmount(): Attribute
+    {
+        return Attribute::make(
+            get: fn($value) => (string) $value,
+        );
+    }
 }
diff --git a/app/Support/Steam.php b/app/Support/Steam.php
index d9ac3009f3..658ec843b4 100644
--- a/app/Support/Steam.php
+++ b/app/Support/Steam.php
@@ -336,7 +336,7 @@ class Steam
         $return   = [];
         /** @var stdClass $entry */
         foreach ($balances as $entry) {
-            $return[(int) $entry->transaction_currency_id] = $entry->sum_for_currency;
+            $return[(int) $entry->transaction_currency_id] = (string) $entry->sum_for_currency;
         }
         $cache->store($return);
 
diff --git a/app/Transformers/TransactionGroupTransformer.php b/app/Transformers/TransactionGroupTransformer.php
index 6868f45957..974172b1f8 100644
--- a/app/Transformers/TransactionGroupTransformer.php
+++ b/app/Transformers/TransactionGroupTransformer.php
@@ -354,7 +354,7 @@ class TransactionGroupTransformer extends AbstractTransformer
         $destination     = $this->getDestinationTransaction($journal);
         $type            = $journal->transactionType->type;
         $amount          = $this->getAmount($type, (string) $source->amount);
-        $foreignAmount   = $this->getForeignAmount($type, $source->foreign_amount);
+        $foreignAmount   = $this->getForeignAmount($type, null === $source->foreign_amount ? null : (string) $source->foreign_amount);
         $metaFieldData   = $this->groupRepos->getMetaFields($journal->id, $this->metaFields);
         $metaDates       = $this->getDates($this->groupRepos->getMetaDateFields($journal->id, $this->metaDateFields));
         $currency        = $source->transactionCurrency;