How do I mark a TDS return as filed?

1. In Compliance → TDS returns, click Mark filed on the return's row.
2. Type the TRACES acknowledgement number.
3. Set Filed on, the day it was filed, from the acknowledgement.
4. Click Mark filed.

The return then shows as filed, with its acknowledgement. A return marked filed can't be changed on this page; to correct its day, record that quarter on the Compliance page.