diff --git a/Admin/Install/taxcodes.json b/Admin/Install/taxcodes.json
index b27c01d..c5d7d06 100755
--- a/Admin/Install/taxcodes.json
+++ b/Admin/Install/taxcodes.json
@@ -1,4 +1,30 @@
 {
+    "SBIZ_0": {
+        "abbr": "SBIZ_0",
+        "percentage_invoice": 0,
+        "percentage_sales_tax": 0,
+        "percentage_input_tax": 0,
+        "tax_report": {
+            "base": null,
+            "amount": 43
+        },
+        "markers": [
+        ],
+        "l11n": {
+            "de": {
+                "title": "Kleinunternehmen § 19 UStG",
+                "short": "",
+                "long": "",
+                "invoice_msg": "Im ausgewiesenen Rechnungsbetrag ist gemäß § 19 UStG keine Umsatzsteuer enthalten."
+            },
+            "en": {
+                "title": "Small business § 19 UStG",
+                "short": "",
+                "long": "",
+                "invoice_msg": "In accordance with § 19 UStG, the invoice amount shown does not include sales tax."
+            }
+        }
+    },
     "S0": {
         "abbr": "S0",
         "percentage_invoice": 0,
@@ -15,6 +41,11 @@
                 "title": "S0",
                 "short": "",
                 "long": ""
+            },
+            "en": {
+                "title": "S0",
+                "short": "",
+                "long": ""
             }
         }
     },
diff --git a/Controller/ApiController.php b/Controller/ApiController.php
index 7d3199d..ca7b49d 100755
--- a/Controller/ApiController.php
+++ b/Controller/ApiController.php
@@ -19,10 +19,8 @@ use Modules\Finance\Models\TaxCodeL11n;
 use Modules\Finance\Models\TaxCodeL11nMapper;
 use Modules\Finance\Models\TaxCodeMapper;
 use phpOMS\Message\Http\RequestStatusCode;
-use phpOMS\Message\NotificationLevel;
 use phpOMS\Message\RequestAbstract;
 use phpOMS\Message\ResponseAbstract;
-use phpOMS\Model\Message\FormValidation;
 
 /**
  * Finance class.
@@ -71,16 +69,15 @@ final class ApiController extends Controller
     public function apiTaxCodeCreate(RequestAbstract $request, ResponseAbstract $response, mixed $data = null) : void
     {
         if (!empty($val = $this->validateTaxCodeCreate($request))) {
-            $response->data['tax_code_create'] = new FormValidation($val);
-            $response->header->status          = RequestStatusCode::R_400;
+            $response->header->status = RequestStatusCode::R_400;
+            $this->createInvalidCreateResponse($request, $response, $val);
 
             return;
         }
 
         $code = $this->createTaxCodeFromRequest($request);
         $this->createModel($request->header->account, $code, TaxCodeMapper::class, 'tax_code', $request->getOrigin());
-
-        $this->fillJsonResponse($request, $response, NotificationLevel::OK, 'Code', 'Tax code successfully created', $code);
+        $this->createStandardCreateResponse($request, $response, $code);
     }
 
     /**
@@ -147,16 +144,15 @@ final class ApiController extends Controller
     public function apiTaxCodeL11nCreate(RequestAbstract $request, ResponseAbstract $response, mixed $data = null) : void
     {
         if (!empty($val = $this->validateTaxCodeL11nCreate($request))) {
-            $response->data['tax_code_l11n_create'] = new FormValidation($val);
-            $response->header->status               = RequestStatusCode::R_400;
+            $response->header->status = RequestStatusCode::R_400;
+            $this->createInvalidCreateResponse($request, $response, $val);
 
             return;
         }
 
         $l11nCode = $this->createTaxCodeL11nFromRequest($request);
         $this->createModel($request->header->account, $l11nCode, TaxCodeL11nMapper::class, 'tax_code_l11n', $request->getOrigin());
-
-        $this->fillJsonResponse($request, $response, NotificationLevel::OK, 'Localization', 'Localization successfully created', $l11nCode);
+        $this->createStandardCreateResponse($request, $response, $l11nCode);
     }
 
     /**