IRS Notice CP518: Final Notice · Unfiled Return
The final unfiled-return notice before the IRS prepares a Substitute for Return with maximum tax and zero mercy.
- Respond within
- 30 days
- How urgent
- Urgent
- Appeal rights
- Not with this notice
How long you have
This notice gives you 30 days to respond. The due date is printed on the letter itself.
The IRS's own guidance on any notice is short: “If we ask you to respond, act by the due date.”
What we do with a CP518
Filing now is dramatically cheaper than unwinding an SFR later. We reconstruct records from transcripts and file.
This page is general information, not advice on your specific matter. An Enrolled Agent has to read your actual notice and your transcripts before telling you what to do about it.
Related notices · Unfiled returns
The next step
Decoded your CP518? Now let's answer it.
Send us the actual notice. A licensed Enrolled Agent will review it free of charge, confidentially, the same week.