On the paper
Identify exactly which year's return the notice says is missing and the due date listed for filing it.
Find the date printed on your notice or letter. The paper notice and the current official IRS instructions control, even where this page differs.
General next steps
- File the missing return by the due date listed on the notice, electronically if the year is eligible or by mail to the address shown.
- Include any supporting documentation the notice requests when you mail the return.
- If you already filed within the last 8 weeks, allow time for IRS processing before sending a duplicate. Otherwise, gather proof of filing and contact the IRS at the number on the notice.
Timing
The IRS says to file by the due date listed on your notice. Your paper controls the date.
What this page cannot tell you
This explanation cannot determine whether you owe for the missing year or when the IRS will release a held refund.
Official sources
If anything on this page differs from your notice or from current IRS instructions, follow the notice and the IRS.