diff --git a/gui/AddCustomer.qml b/gui/AddCustomer.qml
index 4b4e4b6..0fb44ed 100644
--- a/gui/AddCustomer.qml
+++ b/gui/AddCustomer.qml
@@ -257,6 +257,28 @@ ColumnLayout
                 Layout.fillWidth: true
                 editable: true
             }
+            Label
+            {
+                text: qsTr("Rechnung")
+                Layout.alignment: Qt.AlignRight
+            }
+            ComboBox
+            {
+                id: invoice
+                Layout.fillWidth: true
+                editable: true
+            }
+            Label
+            {
+                text: qsTr("Mahnung")
+                Layout.alignment: Qt.AlignRight
+            }
+            ComboBox
+            {
+                id: due
+                Layout.fillWidth: true
+                editable: true
+            }
         }
     }
     RowLayout