CP81 Notice: File Your Return Before Your Tax Credit Expires

What a CP81 says

The IRS CP81 page says, “We received payments or other credits for the tax return shown on your notice, but we haven’t received your tax return for that year.” It adds, “The period for claiming a refund or credit for that tax year may expire soon.”

IRM 21.3.1.6.35 lists what the notice reminds you of: you have not filed a return, the time to claim the overpayment is about to expire, and you claim it by filing the return before the deadline.

IRM 21.3.1.6.35 gives the timing. The IRS sends a CP81 when the refund deadline is “within six months of Refund Statute Expiration Date (RSED).” The RSED is the last day the law lets the IRS refund or credit an overpayment for that year.

What to do by the date on your notice

If you need to file the return, file it now. The CP81 page says, “We’ll use the credit amount shown on the notice to pay any taxes you owe and refund any extra.” Mail it to the address on the notice.

If you already filed the return and “it’s been over 8 weeks,” the page tells you to send a newly signed copy with all the schedules, forms and documents from your original return. If you filed “within the last 8 weeks,” you do not need to do anything.

If the credit belongs on a different form, tax period or taxpayer number, call the number on your notice and ask the IRS to move it.

Do not let the date pass. The page says, “If you don’t file your tax return or contact us, you’ll lose your credit. The law sets strict time limits for refunding or transferring credits.”

How long the refund window runs

The CP81 page states the general rule: “Generally, you must file a tax return within 3 years from the due date of the return (including extensions) to receive a refund of any overpayment on your account.” It adds that after the RSED passes, “we can’t refund any overpayments.”

The word “generally” matters. Your notice shows the year at issue, and the IRS sends a CP81 near the end of the window for that year. Treat the CP81 as your last reminder, not a first warning.

Where a CP81 fits

A CP81 usually follows earlier reminders. IRM 21.2.4.3.44 says the IRS sends a CP80 to ask for a signed return when a tax period shows a credit and no return, and repeats it on a cycle. Six months before the statute expiration date, the IRS sends a final notice: CP81 for an individual, CP081 for a business.

A business that gets the CP081B version faces the same refund deadline. Our CP081B page covers that notice.

What people mistake a CP81 for

Many people read it as a bill. It is the opposite. The IRS holds money for you and needs a return before it can send it.

Others think the IRS will file the return for them. It will not. The CP81 page tells you to file the return yourself.

Some people think an old year no longer matters. The credit on that year expires when the refund period ends, and the page warns the IRS cannot refund it after that date.

Common Questions