diff --git a/scripts/contract/check-bankdata-with-ivt.php b/scripts/contract/check-bankdata-with-ivt.php
new file mode 100644
index 000000000..b8b2154a7
--- /dev/null
+++ b/scripts/contract/check-bankdata-with-ivt.php
@@ -0,0 +1,73 @@
+#!/usr/bin/php
+<?php
+
+//require 'vendor/autoload.php';
+require("../../config/config.php");
+
+define('FRONKDB_SQLDEBUG',false);
+error_reporting(E_ALL & ~(E_NOTICE | E_STRICT | E_DEPRECATED));
+
+require_once(LIBDIR."/mvcfronk/mfRouter/mfRouter.php");
+require_once(LIBDIR."/mvcfronk/mfBase/mfBaseModel.php");
+require_once(LIBDIR."/mvcfronk/mfBase/mfBaseController.php");
+
+$me = new User(1);
+
+foreach(ContractModel::searchActive([]) as $contract) {
+    if($contract->price < 0) continue;
+    $contract_id = $contract->id;
+    $customer_number = $contract->owner->customer_number;
+    $owner_id = $contract->owner_id;
+    $billingaddress_id = $contract->billingaddress_id;
+
+    if($billingaddress_id == $owner_id) {
+        $address = new Address($owner_id);
+    } else {
+        $address = new Address($billingaddress_id);
+    }
+
+    $ivt_customer = new IvtCustomer($customer_number);
+    if(!$ivt_customer) {
+        var_dump($contract);
+        die("Ivt Kunde nicht gefunden: $customer_number\n");
+    }
+
+
+
+    $ivt_bill_type = ($ivt_customer->payment == 1) ? "invoice" : "sepa";
+    $ivt_delivery = ($ivt_customer->paper_invoice == 1) ? "paper" : "email";
+    $ivt_iban = strtoupper(trim(str_replace(" ","", $ivt_customer->IBAN)));
+    $ivt_bic = strtoupper(trim(str_replace(" ","", $ivt_customer->BIC)));
+
+    $tool_iban = strtoupper(trim(str_replace(" ","", $address->bank_account_iban)));
+    $tool_bic = strtoupper(trim(str_replace(" ","", $address->bank_account_bic)));
+
+    $error = false;
+
+
+    if($address->billing_type != $ivt_bill_type) {
+        $error = true;
+        echo "Customer $customer_number contract_id $contract_id [ivt type: $ivt_bill_type | tool: ".$address->billing_type."\n";
+    }
+    if($address->billing_delivery != $ivt_delivery) {
+        $error = true;
+        echo "Customer $customer_number contract_id $contract_id [ivt delivery: $ivt_delivery | tool: ".($address->billing_delivery ? $address->billing_delivery : "paper")."\n";
+    }
+
+    if($address->billing_type == "sepa" || $ivt_bill_type == "sepa") {
+        if ($ivt_iban != $tool_iban) {
+            $error = true;
+            echo "Customer $customer_number contract_id $contract_id [ivt iban: $ivt_iban | tool: $tool_iban\n";
+        }
+        if ($ivt_bic != $tool_bic) {
+            $error = true;
+            echo "Customer $customer_number contract_id $contract_id [ivt iban: $ivt_bic | tool: $tool_bic\n";
+        }
+    }
+
+    /*if($error) {
+        var_dump($ivt_customer);exit;
+    }*/
+
+
+}
\ No newline at end of file