IRS CP3219A - Statutory Notice of Deficiency: What To Do Now

CP3219A is the Statutory Notice of Deficiency — the 90-day letter. It means the IRS computed tax you haven't agreed to, and you have 90 days to petition the Tax Court or the assessment becomes final. This is the last exit before the bill is law. Do not let day 91 arrive.

The clock: this notice generally carries a 90 days response window. Rights and options expire with it — the date on the letter controls, not the day you found it.

Do this, in order

1. Calendar day 90 immediately — the deadline runs from the notice date (150 days if you live outside the U.S.), and it is jurisdictional: courts cannot extend it for any reason
2. Decide within two weeks: agree and pay (or set up a plan), petition the Tax Court, or let it assess and fight in refund court later — indecision defaults to assessment
3. If petitioning, file a Tax Court petition before day 90 — a simple two-page filing that freezes assessment and moves the case to Appeals for settlement talks
4. Do NOT file an amended return to 'fix' a 3219A year while deciding — it can complicate jurisdiction; the petition is the protective move, amendments come later
5. If day 90 already passed, assess the damage fast: audit reconsideration, Appeals CAP hearing, or pay-and-sue in district court or Claims Court are the remaining doors

Straight answers

What happens if I ignore a CP3219A?

On day 91 the IRS assesses the tax by default — no hearing, no appeal, the bill is legally final. Collection follows: notices, liens, levies. Ignoring a 90-day letter is the single most expensive inaction in the tax system.

How do I petition the Tax Court?

File a petition (Tax Court Form 2, or a plain letter with the required contents) plus the filing fee before midnight of day 90 — mailed timely-mailed-timely-filed counts. Most petitioned cases settle in Appeals without trial; the petition buys the negotiation.

Should I agree with the CP3219A or fight it?

Agree if the numbers are right — sign, pay or arrange, move on. Fight if records support a lower number: petition first (protects jurisdiction), then settle from the records. Never agree just to make it stop; never fight without the paper to win.

Where this sits in the machine

This notice belongs to the examination stage of the IRS process. Understanding the stage matters more than the single letter — read IRS Examination: The Mechanics of Defense for the map, and the IRS notice page for CP3219A (irs.gov).

What representation changes

Representation means the examiner talks to your representative, not to you. With a signed Form 2848, an Enrolled Agent receives the information document requests, controls what goes back, and keeps the examination inside its stated scope.