diff --git a/app/Api/V1/Controllers/Models/Budget/ListController.php b/app/Api/V1/Controllers/Models/Budget/ListController.php
index 8dc6ef727b..8fdddd2513 100644
--- a/app/Api/V1/Controllers/Models/Budget/ListController.php
+++ b/app/Api/V1/Controllers/Models/Budget/ListController.php
@@ -201,4 +201,70 @@ class ListController extends Controller
         return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
+    /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/budgets/listTransactionWithoutBudget
+     *
+     * Show all transactions.
+     *
+     * @param Request $request
+     *
+     * @param Budget  $budget
+     *
+     * @return JsonResponse
+     * @throws FireflyException
+     * @codeCoverageIgnore
+     */
+    public function withoutBudget(Request $request): JsonResponse
+    {
+        $pageSize = (int)app('preferences')->getForUser(auth()->user(), 'listPageSize', 50)->data;
+
+        // user can overrule page size with limit parameter.
+        $limit = $this->parameters->get('limit');
+        if (null !== $limit && $limit > 0) {
+            $pageSize = $limit;
+        }
+
+        $type = $request->get('type') ?? 'default';
+        $this->parameters->set('type', $type);
+
+        $types   = $this->mapTransactionTypes($this->parameters->get('type'));
+        $manager = $this->getManager();
+
+        /** @var User $admin */
+        $admin = auth()->user();
+
+        // use new group collector:
+        /** @var GroupCollectorInterface $collector */
+        $collector = app(GroupCollectorInterface::class);
+        $collector
+            ->setUser($admin)
+            // filter on budget.
+            ->withoutBudget()
+            // all info needed for the API:
+            ->withAPIInformation()
+            // set page size:
+            ->setLimit($pageSize)
+            // set page to retrieve
+            ->setPage($this->parameters->get('page'))
+            // set types of transactions to return.
+            ->setTypes($types);
+
+        if (null !== $this->parameters->get('start') && null !== $this->parameters->get('end')) {
+            $collector->setRange($this->parameters->get('start'), $this->parameters->get('end'));
+        }
+
+        $paginator = $collector->getPaginatedGroups();
+        $paginator->setPath(route('api.v1.budgets.without-budget') . $this->buildParams());
+        $transactions = $paginator->getCollection();
+
+        /** @var TransactionGroupTransformer $transformer */
+        $transformer = app(TransactionGroupTransformer::class);
+        $transformer->setParameters($this->parameters);
+        $resource = new FractalCollection($transactions, $transformer, 'transactions');
+        $resource->setPaginator(new IlluminatePaginatorAdapter($paginator));
+
+        return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
+    }
+
 }
diff --git a/app/Validation/AutoBudget/ValidatesAutoBudgetRequest.php b/app/Validation/AutoBudget/ValidatesAutoBudgetRequest.php
index b449eaf527..166a997b76 100644
--- a/app/Validation/AutoBudget/ValidatesAutoBudgetRequest.php
+++ b/app/Validation/AutoBudget/ValidatesAutoBudgetRequest.php
@@ -39,32 +39,32 @@ trait ValidatesAutoBudgetRequest
         $type         = $data['auto_budget_type'] ?? '';
         $amount       = array_key_exists('auto_budget_amount', $data) ? $data['auto_budget_amount'] : null;
         $period       = array_key_exists('auto_budget_period', $data) ? $data['auto_budget_period'] : null;
-        $currencyId   = array_key_exists('auto_budget_currency_id', $data) ? (int)$data['auto_budget_currency_id'] : null;
+        $currencyId   = array_key_exists('auto_budget_currency_id', $data) ? (int) $data['auto_budget_currency_id'] : null;
         $currencyCode = array_key_exists('auto_budget_currency_code', $data) ? $data['auto_budget_currency_code'] : null;
         if (is_numeric($type)) {
-            $type = (int)$type;
+            $type = (int) $type;
         }
-        if (0 === $type) {
+        if ('' === $type || 0 === $type) {
             return;
         }
         // basic float check:
         if (!is_numeric($amount)) {
-            $validator->errors()->add('auto_budget_amount', (string)trans('validation.amount_required_for_auto_budget'));
+            $validator->errors()->add('auto_budget_amount', (string) trans('validation.amount_required_for_auto_budget'));
 
             return;
         }
 
         if ('' === $amount) {
-            $validator->errors()->add('auto_budget_amount', (string)trans('validation.amount_required_for_auto_budget'));
+            $validator->errors()->add('auto_budget_amount', (string) trans('validation.amount_required_for_auto_budget'));
         }
-        if (1 !== bccomp((string)$amount, '0')) {
-            $validator->errors()->add('auto_budget_amount', (string)trans('validation.auto_budget_amount_positive'));
+        if (1 !== bccomp((string) $amount, '0')) {
+            $validator->errors()->add('auto_budget_amount', (string) trans('validation.auto_budget_amount_positive'));
         }
         if ('' === $period) {
-            $validator->errors()->add('auto_budget_period', (string)trans('validation.auto_budget_period_mandatory'));
+            $validator->errors()->add('auto_budget_period', (string) trans('validation.auto_budget_period_mandatory'));
         }
         if (null !== $currencyId && null !== $currencyCode && '' === $currencyCode && 0 === $currencyId) {
-            $validator->errors()->add('auto_budget_amount', (string)trans('validation.require_currency_info'));
+            $validator->errors()->add('auto_budget_amount', (string) trans('validation.require_currency_info'));
         }
     }
 }