diff --git a/app/Http/Controllers/API/v1/TransactionController.php b/app/Http/Controllers/API/v1/TransactionController.php
index 3ff48cb..7dd998a 100644
--- a/app/Http/Controllers/API/v1/TransactionController.php
+++ b/app/Http/Controllers/API/v1/TransactionController.php
@@ -7,8 +7,6 @@
 use App\Jobs\RecurrentTransactionJob;
 use App\Models\RecurringTransactionRule;
 use App\Models\Transaction;
-use App\Rules\Iso8601DateTime;
-use App\Rules\ValidateClientId;
 use App\Services\FileService;
 use App\Services\RecurringTransactionService;
 use Illuminate\Http\JsonResponse;
@@ -17,6 +15,8 @@
 use OpenApi\Attributes as OA;
 use Symfony\Component\HttpKernel\Exception\HttpException;
 use Throwable;
+use App\Http\Requests\StoreTransactionRequest;
+use App\Http\Requests\UpdateTransactionRequest;
 
 #[OA\Tag(name: 'Transactions', description: 'Endpoints for managing transactions')]
 class TransactionController extends ApiController
@@ -291,33 +291,10 @@ enum: ['daily', 'weekly', 'monthly', 'yearly']
     /**
      * @SuppressWarnings(PHPMD.NPathComplexity)
      */
-    public function store(Request $request): JsonResponse
+    public function store(StoreTransactionRequest $request): JsonResponse
     {
-        $validationResult = $this->validateRequest($request, [
-            'client_id' => ['nullable', 'string', new ValidateClientId()],
-            'amount' => 'required|numeric|min:0.01',
-            'type' => 'required|string|in:income,expense',
-            'description' => 'nullable|string',
-            'datetime' => ['nullable', new Iso8601DateTime()],
-            'created_at' => ['nullable', new Iso8601DateTime()],
-            'group_id' => 'nullable|integer|exists:groups,id',
-            'party_id' => 'nullable|integer|exists:parties,id',
-            'wallet_id' => 'required|integer|exists:wallets,id',
-            'categories' => 'nullable|array',
-            'is_recurring' => 'nullable|boolean',
-            'recurrence_period' => 'nullable|string|in:daily,weekly,monthly,yearly',
-            'recurrence_interval' => 'nullable|integer|min:1',
-            'recurrence_ends_at' => ['nullable', 'date', 'after:today', new Iso8601DateTime()],
-            'categories.*' => 'integer|exists:categories,id',
-            'files' => 'nullable|array',
-            'files.*' => 'file|mimes:' . FileService::ALLOWED_EXTENSIONS . '|max:' . FileService::MAX_KILOBYTES,
-        ]);
-
-        if (! $validationResult['isValidated']) {
-            return $this->failure($validationResult['message'], $validationResult['code'], $validationResult['errors']);
-        }
 
-        $data = $validationResult['data'];
+        $data = $request->validated();
         $user = $request->user();
 
         if (! empty($data['client_id'])) {
@@ -611,31 +588,9 @@ public function show($transactionId, Request $request): JsonResponse
     /**
      * @SuppressWarnings(PHPMD.NPathComplexity)
      */
-    public function update(Request $request, $transactionId): JsonResponse
+    public function update(UpdateTransactionRequest $request, $transactionId): JsonResponse
     {
-        $validationResult = $this->validateRequest($request, [
-            'client_id' => ['nullable', 'string', new ValidateClientId()],
-            'amount' => 'nullable|numeric|min:0.01',
-            'type' => 'nullable|string|in:income,expense',
-            'datetime' => ['nullable', new Iso8601DateTime()],
-            'description' => 'nullable|string',
-            'party_id' => 'nullable|integer|exists:parties,id',
-            'wallet_id' => 'sometimes|integer|exists:wallets,id',
-            'group_id' => 'nullable|integer|exists:groups,id',
-            'categories' => 'nullable|array',
-            'categories.*' => 'integer|exists:categories,id',
-            'is_recurring' => 'nullable|boolean',
-            'recurrence_period' => 'nullable|string|in:daily,weekly,monthly,yearly',
-            'recurrence_interval' => 'nullable|integer|min:1',
-            'recurrence_ends_at' => ['nullable', 'date', 'after:today', new Iso8601DateTime()],
-            'updated_at' => ['nullable', new Iso8601DateTime()],
-        ]);
-
-        if (! $validationResult['isValidated']) {
-            return $this->failure($validationResult['message'], $validationResult['code'], $validationResult['errors']);
-        }
-
-        $validatedData = $validationResult['data'];
+        $validatedData = $request->validated();
         $recurringTransactionData = [];
 
         if (isset($validatedData['is_recurring']) && $validatedData['is_recurring']) {
diff --git a/app/Http/Requests/ApiFormRequest.php b/app/Http/Requests/ApiFormRequest.php
new file mode 100644
index 0000000..498ebfc
--- /dev/null
+++ b/app/Http/Requests/ApiFormRequest.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace App\Http\Requests;
+
+use Illuminate\Contracts\Validation\Validator;
+use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Http\Exceptions\HttpResponseException;
+
+abstract class ApiFormRequest extends FormRequest
+{
+    /**
+     * Handle a failed validation attempt.
+     *
+     * @param  \Illuminate\Contracts\Validation\Validator  $validator
+     * @return void
+     *
+     * @throws \Illuminate\Http\Exceptions\HttpResponseException
+     */
+    protected function failedValidation(Validator $validator)
+    {
+        // This exactly mirrors the ApiController's failure() structure
+        $response = response()->json([
+            'success' => false,
+            'message' => __('Server failed to validate request.'),
+            'errors'  => $validator->errors()->toArray(),
+        ], 422);
+
+        throw new HttpResponseException($response);
+    }
+}
diff --git a/app/Http/Requests/FileImportApiRequest.php b/app/Http/Requests/FileImportApiRequest.php
index b7309f4..f3b77f1 100644
--- a/app/Http/Requests/FileImportApiRequest.php
+++ b/app/Http/Requests/FileImportApiRequest.php
@@ -2,9 +2,9 @@
 
 namespace App\Http\Requests;
 
-use Illuminate\Foundation\Http\FormRequest;
+// use Illuminate\Foundation\Http\FormRequest;
 
-class FileImportApiRequest extends FormRequest
+class FileImportApiRequest extends ApiFormRequest
 {
     /**
      * Get the validation rules that apply to the request.
diff --git a/app/Http/Requests/FixFailedImportsRequest.php b/app/Http/Requests/FixFailedImportsRequest.php
index 71e7db4..597f1f6 100644
--- a/app/Http/Requests/FixFailedImportsRequest.php
+++ b/app/Http/Requests/FixFailedImportsRequest.php
@@ -2,9 +2,9 @@
 
 namespace App\Http\Requests;
 
-use Illuminate\Foundation\Http\FormRequest;
+// use Illuminate\Foundation\Http\FormRequest;
 
-class FixFailedImportsRequest extends FormRequest
+class FixFailedImportsRequest extends ApiFormRequest
 {
     /**
      * Get the validation rules that apply to the request.
diff --git a/app/Http/Requests/ImportAnalyzeRequest.php b/app/Http/Requests/ImportAnalyzeRequest.php
index f40fda9..e3a8d33 100644
--- a/app/Http/Requests/ImportAnalyzeRequest.php
+++ b/app/Http/Requests/ImportAnalyzeRequest.php
@@ -2,9 +2,9 @@
 
 namespace App\Http\Requests;
 
-use Illuminate\Foundation\Http\FormRequest;
+// use Illuminate\Foundation\Http\FormRequest;
 
-class ImportAnalyzeRequest extends FormRequest
+class ImportAnalyzeRequest extends ApiFormRequest
 {
     public function rules(): array
     {
diff --git a/app/Http/Requests/ImportConfirmRequest.php b/app/Http/Requests/ImportConfirmRequest.php
index 35e0d37..ff7d0b4 100644
--- a/app/Http/Requests/ImportConfirmRequest.php
+++ b/app/Http/Requests/ImportConfirmRequest.php
@@ -2,9 +2,9 @@
 
 namespace App\Http\Requests;
 
-use Illuminate\Foundation\Http\FormRequest;
+// use Illuminate\Foundation\Http\FormRequest;
 
-class ImportConfirmRequest extends FormRequest
+class ImportConfirmRequest extends ApiFormRequest
 {
     public function rules(): array
     {
diff --git a/app/Http/Requests/StoreTransactionRequest.php b/app/Http/Requests/StoreTransactionRequest.php
new file mode 100644
index 0000000..9860178
--- /dev/null
+++ b/app/Http/Requests/StoreTransactionRequest.php
@@ -0,0 +1,50 @@
+<?php
+
+namespace App\Http\Requests;
+
+use App\Rules\Iso8601DateTime;
+use App\Rules\ValidateClientId;
+use App\Services\FileService;
+
+// use Illuminate\Foundation\Http\FormRequest;
+
+class StoreTransactionRequest extends ApiFormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     */
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array<string, \Illuminate\Contracts\Validation\ValidationRule|array<mixed>|string>
+     */
+    public function rules(): array
+    {
+        return [
+            'convert_myself_to_transfer' => 'sometimes|boolean',
+            'client_id'                  => ['nullable', 'string', new ValidateClientId()],
+            'amount'                     => 'required|numeric|min:0.01',
+            'type'                       => 'required|string|in:income,expense',
+            'description'                => 'nullable|string',
+            'datetime'                   => ['nullable', new Iso8601DateTime()],
+            'created_at'                 => ['nullable', new Iso8601DateTime()],
+            'group_id'                   => 'nullable|integer|exists:groups,id',
+            'party_id'                   => 'nullable|integer|exists:parties,id',
+            'wallet_id'                  => 'required|integer|exists:wallets,id',
+            'categories'                 => 'nullable|array',
+            'categories.*'               => 'integer|exists:categories,id',
+            'is_recurring'               => 'nullable|boolean',
+            'recurrence_period'          => 'nullable|string|in:daily,weekly,monthly,yearly',
+            'recurrence_interval'        => 'nullable|integer|min:1',
+            'recurrence_ends_at'         => ['nullable', 'date', 'after:today', new Iso8601DateTime()],
+            'files'                      => 'nullable|array',
+            'files.*'                    => 'file|mimes:' . FileService::ALLOWED_EXTENSIONS . '|max:' . FileService::MAX_KILOBYTES,
+            'from_wallet_id'             => 'required_if:convert_myself_to_transfer,true|integer|exists:wallets,id',
+        ];
+    }
+}
diff --git a/app/Http/Requests/UpdateTransactionRequest.php b/app/Http/Requests/UpdateTransactionRequest.php
new file mode 100644
index 0000000..a31fef9
--- /dev/null
+++ b/app/Http/Requests/UpdateTransactionRequest.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace App\Http\Requests;
+
+use App\Rules\Iso8601DateTime;
+use App\Rules\ValidateClientId;
+
+// use Illuminate\Foundation\Http\FormRequest;
+
+class UpdateTransactionRequest extends ApiFormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     */
+    public function authorize(): bool
+    {
+        return true; //auth handled by middleware
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array<string, \Illuminate\Contracts\Validation\ValidationRule|array<mixed>|string>
+     */
+    public function rules(): array
+    {
+        return [
+            'client_id' => ['nullable', 'string', new ValidateClientId()],
+            'amount' => 'nullable|numeric|min:0.01',
+            'type' => 'nullable|string|in:income,expense',
+            'datetime' => ['nullable', new Iso8601DateTime()],
+            'description' => 'nullable|string',
+            'party_id' => 'nullable|integer|exists:parties,id',
+            'wallet_id' => 'sometimes|integer|exists:wallets,id',
+            'group_id' => 'nullable|integer|exists:groups,id',
+            'categories' => 'nullable|array',
+            'categories.*' => 'integer|exists:categories,id',
+            'is_recurring' => 'nullable|boolean',
+            'recurrence_period' => 'nullable|string|in:daily,weekly,monthly,yearly',
+            'recurrence_interval' => 'nullable|integer|min:1',
+            'recurrence_ends_at' => ['nullable', 'date', 'after:today', new Iso8601DateTime()],
+            'updated_at' => ['nullable', new Iso8601DateTime()],
+        ];
+    }
+}