diff --git a/server/vbv_lernwelt/shop/tests/test_checkout_api.py b/server/vbv_lernwelt/shop/tests/test_checkout_api.py
index 3c0b3ec8..7b0de51b 100644
--- a/server/vbv_lernwelt/shop/tests/test_checkout_api.py
+++ b/server/vbv_lernwelt/shop/tests/test_checkout_api.py
@@ -52,6 +52,37 @@ class CheckoutAPITestCase(APITestCase):
         self.client.login(username=USER_USERNAME, password=USER_PASSWORD)
         add_countries()
 
+    @patch("vbv_lernwelt.shop.views.init_transaction")
+    def test_checkout_no_company_address_updates_user(self, mock_init_transaction):
+        # GIVEN
+        mock_init_transaction.return_value = "1234567890"
+
+        # WHEN
+        response = self.client.post(
+            path=reverse("checkout-vv"),
+            format="json",
+            data={
+                "redirect_url": REDIRECT_URL,
+                "product": VV_DE_PRODUCT_SKU,
+                "address": {
+                    "first_name": "Test",
+                    "last_name": "User",
+                    "street": "Test Street",
+                    "street_number": "1",
+                    "postal_code": "1234",
+                    "city": "Test City",
+                    "country": "209",
+                    # NO company data
+                },
+            },
+        )
+
+        # THEN
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
+
+        user = User.objects.get(username=USER_USERNAME)
+        self.assertEqual(user.invoice_address, User.INVOICE_ADDRESS_PRIVATE)
+
     @patch("vbv_lernwelt.shop.views.init_transaction")
     def test_checkout_happy_case(self, mock_init_transaction):
         # GIVEN