IRS Letter 3219
Notice of Deficiency — 90-Day Letter
This is your last chance to go to Tax Court before the IRS assesses the tax.
Deadline
90 days from the notice date (150 days if outside the U.S.)
This is a jurisdictional deadline — it cannot be extended. If you miss it, the IRS can assess the proposed tax without further hearing. The Tax Court filing date is the postmark date.
Act within days — enforcement is imminent or already in progress.
Letter 3219, the Statutory Notice of Deficiency, is a final administrative notice confirming an audit finding. It requires the taxpayer to file a petition with the U.S. Tax Court within a non-extendable 90-day deadline to legally challenge the proposed tax debt before it is officially assessed and collection efforts begin.
What IRS Letter 3219 Means
Letter 3219 — the Notice of Deficiency — is the IRS's formal legal notice that they propose to assess additional tax against you. This letter marks the beginning of your 90-day window to petition the U.S. Tax Court for a judicial review before the IRS can legally collect the proposed amount.
The 90-day window is jurisdictional — it cannot be extended, waived, or granted by the Tax Court. If you miss it, the IRS assesses the proposed tax and collection begins. At that point, your only options are to pay and seek a refund through district court, or to pursue other post-assessment remedies like audit reconsideration.
You do not have to agree with the IRS's proposed deficiency to receive Letter 3219. If you received it after an audit, exam, or automated underreporter case (CP2000), the IRS is formalizing its position. Petitioning Tax Court does not mean you will go to trial — the vast majority of Tax Court cases are settled before trial.
What the IRS Can Do If You Don't Respond
- Assess the proposed deficiency automatically if you do not petition Tax Court within 90 days
- Begin collection — liens, levies, and wage garnishment — once the assessment is final
- Proceed to trial in Tax Court if a petition is filed and the case is not settled
What You Should Do Right Now
- 1
Count the 90 days carefully — start from the date on the notice, not the date you received it
- 2
Contact a tax professional immediately — this is not a situation for delay
- 3
Evaluate whether the IRS's proposed deficiency is correct or disputable
- 4
If you disagree, file a Tax Court petition within 90 days (the filing fee is $60)
- 5
Even if you plan to settle, filing the petition preserves your rights — most cases settle after petition is filed
- 6
If you agree with the deficiency, you can sign the waiver form enclosed with Letter 3219 to expedite processing
Resolution Options Available to You
Frequently Asked Questions About IRS Letter 3219
What happens if I miss the 90-day deadline on Letter 3219?
The IRS assesses the proposed deficiency as final. You lose the right to dispute it in Tax Court without paying first. Post-assessment options are limited to audit reconsideration or a refund suit in district court after paying the tax.
Does filing a Tax Court petition mean I'm going to trial?
Not usually — over 90% of Tax Court petitions are settled before trial. Filing the petition preserves your rights and opens settlement negotiations with the IRS Office of Appeals. Many cases are resolved favorably during this process.
Can I go to Tax Court without a lawyer?
Yes — Tax Court allows taxpayers to represent themselves in small tax cases (under $50,000 per year at issue) under the simplified 'S case' procedure. However, a CPA or tax attorney significantly improves outcomes, especially in larger cases.
What if I received Letter 3219 but was already working with an IRS Appeals officer?
If the notice was issued while your case was in Appeals, contact your Appeals officer immediately. The 90-day deadline still runs regardless of Appeals status. The petition may need to be filed to preserve your rights even while settlement discussions continue.
Professional References
IRC: IRC §6212 — Notice of Deficiency; IRC §6213 — Restrictions Applicable to Deficiencies; IRC §6214 — Determinations by Tax Court
IRM: IRM 8.17.4 — Statutory Notice of Deficiency Procedures
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