On the paper
Find the exact last day to file a Tax Court petition printed in the notice. Keep the envelope and every page.
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
- Compare each proposed adjustment with the return and supporting records.
- If you disagree, read the petition instructions and confirm the filing deadline from the notice itself.
- If you agree, follow the IRS instructions for payment or other response after considering the notice’s procedural instructions.
Timing
Internal Revenue Code section 6213(a) sets a period of 90 days to file a Tax Court petition, or 150 days where the notice is addressed to a person outside the United States, measured from the mailing of the notice. The printed date controls, and the IRS cannot extend this period.
What this page cannot tell you
A Tax Court deadline is fact-specific. Do not assume that reading this page pauses or preserves any deadline.
Official sources
- IRS: Understanding your CP3219A notice (related notice of deficiency)
- 26 U.S.C. § 6213: petition to Tax Court
- United States Tax Court: petitioners
- Taxpayer Advocate Service: Letter 3219
If anything on this page differs from your notice or from current IRS instructions, follow the notice and the IRS.