diff --git a/app/Helpers/Collector/Extensions/MetaCollection.php b/app/Helpers/Collector/Extensions/MetaCollection.php
index dadb4067f7..61cc757453 100644
--- a/app/Helpers/Collector/Extensions/MetaCollection.php
+++ b/app/Helpers/Collector/Extensions/MetaCollection.php
@@ -408,6 +408,23 @@ trait MetaCollection
         return $this;
     }
 
+    /**
+     * Limit the search to a specific bunch of categories.
+     *
+     * @param Collection $categories
+     *
+     * @return GroupCollectorInterface
+     */
+    public function setNotCategories(Collection $categories): GroupCollectorInterface
+    {
+        if ($categories->count() > 0) {
+            $this->withCategoryInformation();
+            $this->query->whereNotIn('categories.id', $categories->pluck('id')->toArray());
+        }
+
+        return $this;
+    }
+
     /**
      * Will include category ID + name, if any.
      *
diff --git a/app/Helpers/Collector/GroupCollectorInterface.php b/app/Helpers/Collector/GroupCollectorInterface.php
index b24aa90703..3fcec55ce7 100644
--- a/app/Helpers/Collector/GroupCollectorInterface.php
+++ b/app/Helpers/Collector/GroupCollectorInterface.php
@@ -571,6 +571,15 @@ interface GroupCollectorInterface
      */
     public function setCategories(Collection $categories): GroupCollectorInterface;
 
+    /**
+     * Limit the search not to have a specific bunch of categories.
+     *
+     * @param Collection $categories
+     *
+     * @return GroupCollectorInterface
+     */
+    public function setNotCategories(Collection $categories): GroupCollectorInterface;
+
     /**
      * Limit the search to a specific category.
      *
diff --git a/app/Support/Search/OperatorQuerySearch.php b/app/Support/Search/OperatorQuerySearch.php
index 3ddf291adb..a0075bf504 100644
--- a/app/Support/Search/OperatorQuerySearch.php
+++ b/app/Support/Search/OperatorQuerySearch.php
@@ -38,6 +38,7 @@ use FireflyIII\Repositories\Currency\CurrencyRepositoryInterface;
 use FireflyIII\Repositories\Tag\TagRepositoryInterface;
 use FireflyIII\Support\ParseDateString;
 use FireflyIII\User;
+use Gdbots\QueryParser\Enum\BoolOperator;
 use Gdbots\QueryParser\Node\Date;
 use Gdbots\QueryParser\Node\Emoji;
 use Gdbots\QueryParser\Node\Emoticon;
@@ -206,14 +207,18 @@ class OperatorQuerySearch implements SearchInterface
                 Log::debug(sprintf('Now handle Node class %s', $class));
                 /** @var Field $searchNode */
                 // used to search for x:y
-                $operator = strtolower($searchNode->getValue());
-                $value    = $searchNode->getNode()->getValue();
+                $operator   = strtolower($searchNode->getValue());
+                $value      = $searchNode->getNode()->getValue();
+                $prohibited = $searchNode->getBoolOperator()->equals(BoolOperator::PROHIBITED()->getValue());
                 // must be valid operator:
-                if (in_array($operator, $this->validOperators, true) && $this->updateCollector($operator, (string) $value)) {
+                if (
+                    in_array($operator, $this->validOperators, true) &&
+                    $this->updateCollector($operator, (string) $value, $prohibited)) {
                     $this->operators->push(
                         [
-                            'type'  => self::getRootOperator($operator),
-                            'value' => (string) $value,
+                            'type'       => self::getRootOperator($operator),
+                            'value'      => (string) $value,
+                            'prohibited' => $prohibited,
                         ]
                     );
                     Log::debug(sprintf('Added operator type "%s"', $operator));
@@ -236,8 +241,12 @@ class OperatorQuerySearch implements SearchInterface
      * @return bool
      * @throws FireflyException
      */
-    private function updateCollector(string $operator, string $value): bool
+    private function updateCollector(string $operator, string $value, bool $prohibited): bool
     {
+        if ($prohibited) {
+            $operator = sprintf('!%s', $operator);
+        }
+
         Log::debug(sprintf('Now in updateCollector("%s", "%s")', $operator, $value));
 
         // check if alias, replace if necessary:
@@ -476,6 +485,15 @@ class OperatorQuerySearch implements SearchInterface
                     $this->collector->findNothing();
                 }
                 break;
+            case '!category_contains':
+                $result = $this->categoryRepository->searchCategory($value, 1337);
+                if ($result->count() > 0) {
+                    $this->collector->setNotCategories($result);
+                }
+                if (0 === $result->count()) {
+                    $this->collector->findNothing();
+                }
+                break;
             //
             // budgets
             //
diff --git a/resources/lang/en_US/firefly.php b/resources/lang/en_US/firefly.php
index 6c2bd336fd..7e94c61f64 100644
--- a/resources/lang/en_US/firefly.php
+++ b/resources/lang/en_US/firefly.php
@@ -404,6 +404,7 @@ return [
     'search_modifier_account_nr_ends'                     => 'Either account number / IBAN ends with ":value"',
     'search_modifier_account_nr_starts'                   => 'Either account number / IBAN starts with ":value"',
     'search_modifier_category_contains'                   => 'Category contains ":value"',
+    'search_modifier_not_category_contains'               => 'Category does not contain ":value"',
     'search_modifier_category_ends'                       => 'Category ends with ":value"',
     'search_modifier_category_starts'                     => 'Category starts with ":value"',
     'search_modifier_budget_contains'                     => 'Budget contains ":value"',
diff --git a/resources/views/search/index.twig b/resources/views/search/index.twig
index a053d03b20..6531669958 100644
--- a/resources/views/search/index.twig
+++ b/resources/views/search/index.twig
@@ -57,7 +57,12 @@
                         <p>{{ trans('firefly.modifiers_applies_are') }}</p>
                         <ul>
                             {% for operator in operators %}
-                                <li>{{ trans('firefly.search_modifier_'~operator.type, {value: operator.value}) }}</li>
+                                {% if operator.prohibited %}
+                                    <li>{{ trans('firefly.search_modifier_not_'~operator.type, {value: operator.value}) }}</li>
+                                {% endif %}
+                                {% if not operator.prohibited %}
+                                    <li>{{ trans('firefly.search_modifier_'~operator.type, {value: operator.value}) }}</li>
+                                {% endif %}
                             {% endfor %}
                         </ul>
                     {% endif %}