diff --git a/fet2020/finance/models.py b/fet2020/finance/models.py
index 5c7a937f..e5b84f81 100644
--- a/fet2020/finance/models.py
+++ b/fet2020/finance/models.py
@@ -155,6 +155,7 @@ class Bill(models.Model):
 
     class Status(models.TextChoices):
         SUBMITTED = "S", "Eingereicht"
+        INCOMPLETE = "I", "Unvollständig"
         CLEARED = "C", "Abgerechnet"
         FINISHED = "F", "Abgeschlossen"