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CP59SN notice: what it means and what to do
Got an IRS CP59SN notice? Here is what it means, your deadline, what to check before you answer, and how to reply. Check your own letter free: it stays on your phone.
Check my CP59SN notice freeWhat the IRS says this notice is about
We haven’t received your federal income tax return.
What you need to do
- File your personal tax return immediately.
Note: You may disregard this notice if you have already filed. If you have a valid automatic extension of time to file or reside in an area affected by certain federally declared disasters , please file by the applicable extended or postponed due date.
Note: If you received an IRS-issued identity protection personal identification number (IP PIN) due to identity theft, you must include the IP PIN on your tax return, as directed, when you send it to us. If you’re filing a married filing joint return, include each spouse’s IP PIN.
Your deadline
Answer by the date printed on your notice. If there is no date, answer as soon as you can, and call the number on the notice if you need more time.
What to check before you answer
Is this letter really from the IRS?
The IRS writes first by mail. A real letter shows a notice or letter number, your name and part of your tax ID number. The IRS does not ask for payment by gift card, crypto or wire transfer. If in doubt, sign in to your IRS online account, where many notices are listed.
You may want to
- Check if you need to file a tax return : Make sure you know the rules about who should file.
- Understand what happens if you’re late : Learn about deadlines for claiming credits or refunds , and what to expect if you file or pay late .
- Check to make sure your return was not rejected: Review common errors made when filing.
- Double-check your past returns: Review your records to ensure you’ve filed all your previous tax returns . You can even download copies of old returns to be safe.
- Make sure you’re withholding enough: Use the Tax Withholding Estimator to check if you’re having enough taxes taken out of your paycheck.
- Explore payment options if you owe taxes: If you think you might owe more taxes, learn about payment plans, installment agreements , and other options that can help.
Common questions
What can happen if I don’t file? (updated Dec. 4, 2025)
You may lose your claim to a refund or certain credits. The Internal Revenue Code sets strict time limits to claim those items. If you owe, penalties and interest will continue to accrue until you file and pay in full.
What should I do if I’ve just filed my tax return? (added Dec. 4, 2025)
You don't have to do anything if you filed your tax return within the last eight weeks.
What should I do if I didn’t file my tax return, or it’s been more than eight weeks since I filed it? (added Dec. 4, 2025)
We show that we didn’t receive your tax return. If you haven’t filed your return, you should file it immediately. If it’s been more than eight weeks since you filed it, check the name, Social Security number (or taxpayer identification number), and tax year on your notice. Make sure they match the name, number, and year on the return. Mail us a signed and dated copy of the tax return.
What if I want to file electronically? (added Dec. 4, 2025)
We can accept tax returns from the last 2 years electronically, but you’ll need to find an e-file provider that can help you do that. Not all tax preparation services offer this, so you’ll need to look for one that does. Learn more about e-file .
What happens if I can’t pay the full amount I owe when I file my return?
You can request a payment plan with us to pay off your balance over time.
Helpful information
- Publication 17, Your Federal Income Tax
- Publication 505, Tax Withholding and Estimated Tax
- Publication 4134, Low Income Taxpayer Clinics (LITC) PDF