IRS CP3219N: Notice of Deficiency for a Non Filer (90 Day Letter)

The short version. A CP3219N is the 90 day letter for someone the IRS believes did not file. The IRS used the income reported by employers and others to compute a proposed tax. You have 90 days, 150 if you are outside the United States, to file your own return or to petition the Tax Court. If you do neither, the IRS assesses the proposed tax and moves to collect.

Your two real options, and the clock

A CP3219N is a legal notice with a hard deadline. The best response is almost always to file your own return.

Within 90 days you can

File your own past due return with your deductions and credits.
Petition the U.S. Tax Court to dispute the proposed tax.
Reduce the balance well below the IRS estimate by filing.
Keep control of the numbers instead of accepting the IRS version.

If you do nothing

The IRS assesses the proposed tax.
That tax omits most deductions and credits.
The balance moves into the collection process.
Levies and liens can follow.

Filing usually beats petitioning

Because the IRS estimate ignores most of what would lower your tax, filing your own return for the year is usually the strongest response. It often shrinks the balance dramatically. The 90 day deadline is set by law and generally cannot be extended, so the date on the notice controls everything.

What you can do about it

Decide fast and protect the deadline. Each step is part of the normal deficiency response.

File your own return for the yearUsually the best move. It replaces the IRS estimate with your real numbers.
Note the 90 day petition deadlineFind the date on the notice. Protecting that date comes before everything else.
Set up a payment plan for any real balanceIf filing still leaves a balance you cannot pay at once.
Request Penalty AbatementLate filing and payment penalties may be reducible.

This has a court deadline. File before it passes.

A CP3219N is the last step before the IRS assesses an inflated estimate. Send your case in for a free review and we will tell you how much time you have and the fastest way to cut the balance.

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Related IRS notices

Not your notice? Look yours up on the home page.

The legal basis

What this is grounded in

Authority to prepare a return for a non filer: Internal Revenue Code section 6020(b).
Authority to issue a statutory notice of deficiency: Internal Revenue Code section 6212(a).
Right to petition the Tax Court within 90 days, 150 if outside the United States: Internal Revenue Code section 6213(a).
Statutory notice of deficiency procedures: IRM 8.2.2.
Official IRS explanation of this notice: Understanding your CP3219N notice.

These are the controlling Internal Revenue Code sections and Internal Revenue Manual parts. Links go to the live IRS.gov pages so you can confirm every point yourself.

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Got an IRS CP3219N Notice? Here Is What It Means.