Income mismatch & return changes
The statutory notice of deficiency — the famous '90-day letter.' The IRS has formally decided you owe more tax, and this notice is your ticket to the one court that hears tax cases before you pay: the U.S. Tax Court.
Last stop
The statutory notice of deficiency — the famous '90-day letter.' The IRS has formally decided you owe more tax, and this notice is your ticket to the one court that hears tax cases before you pay: the U.S. Tax Court.
Why you got it: An unresolved CP2000/CP2501 mismatch, an audit, or an unfiled-return computation reached its formal conclusion.
Not yet an assessment — the IRS cannot assess or collect this tax while the 90 days run. But when they expire without a Tax Court petition, the assessment happens automatically, and the pre-payment court door closes for good.
Your first move: Calendar day 90 from the notice date — in ink. Decide fast whether you're petitioning the Tax Court, paying, or negotiating; this is also the clearest 'talk to a tax professional' notice in the whole system.
Every clock runs from this date — not from the day the letter reached you.
Preserves everything; many cases settle with IRS Appeals after filing. Missing the date is the only unforgivable error here.
Stops interest from growing while you consider a refund claim.
Balances here justify it — and LITCs exist exactly for people who can't hire one.
Petition goes to the U.S. Tax Court in Washington, D.C. (the notice and the Court's site give the address and form) — certified mail, and keep the receipt with the notice.
A real CP3219A matches your online account and transcripts. Fake 'deficiency' letters push gift-card payment — a thing the Tax Court process never involves.
The tax, penalties, and interest are assessed; a CP14 bill follows; the collection ladder starts. Your remaining route is pay-then-sue-for-refund in a different court — slower, and the money leaves first.
Where this sits on the ladder: CP14 →
One payment. No subscription. Yours to keep — every notice, every letter, every script.