Tax return rejected due to IP PIN: how to get the right number and refile

Why was my tax return rejected due to IP PIN?

An Identity Protection PIN (IP PIN) is a 6-digit number the IRS issues to lock a Social Security number or ITIN against fraudulent returns. Once a number is enrolled, every e-filed federal return that lists it must carry the current IP PIN. If it is missing, mistyped or from an earlier year, the IRS IP PIN FAQ says the return is rejected and must be e-filed again with the correct PIN.

The reject code tells you whose PIN caused the problem. That matters because many people check their own PIN when the failure was actually a spouse's or a child's. Codes for other problems are in our IRS reject codes list.

Why is my IP PIN being rejected when I typed it correctly?

When the IRS IP PIN is rejected even though the digits look right, the cause is usually one of these:

• It is last year's number. A new IP PIN is generated every year. A CP01A notice or online account screen from last January will not work in 2027.
• It is in the wrong box. The primary taxpayer's PIN went into the spouse field, or the other way around.
• A dependent's PIN is missing. If a child you claim has an IP PIN, it must be entered on Form 1040 and, where they apply, on Form 2441 and Schedule EIC.
• It is a different PIN. The five-digit self-select PIN you sign with, or a PIN from a state agency, is not the IRS IP PIN.
• You opted out recently. After a voluntary opt-out, the IRS says to allow up to 72 hours before e-filing without an IP PIN.

For the primary taxpayer's code in detail, see reject code IND-181-01.

How do I get my IP PIN?

The fastest route is your IRS online account. Sign in, go to the Profile page and open the IP PIN section; the IRS says the current year's number is generally viewable there from mid-January through mid-November. Signing in requires identity verification, which our ID.me verification guide walks through.

The mail routes rule out a same-day fix, so they suit someone who has time before the deadline or who is setting up for next season. People who get their PIN by Form 15227 or in person then receive it by mail each year, while voluntary online enrollees must retrieve it online every year because no CP01A notice is mailed to them.

What if I never had an IP PIN?

If the IRS rejected your tax return for an IP PIN and you never had one, the IRS has assigned one to you. Its FAQ says that a rejection for a missing IP PIN is how you learn you were assigned one. Assignment usually follows a case where the IRS identified you as a victim of tax-related identity theft, so treat it as a signal to check your records.

1. Confirm from the reject code whose SSN has the IP PIN; it may be a spouse or dependent, not you.
2. Look for an IRS CP01A notice, which the IRS mails to assigned participants with the new PIN.
3. If you cannot find it, retrieve the PIN in your online account or use one of the mail options above.
4. If you did not know your identity was stolen, review the IRS identity theft guidance before filing.

Dependents with IP PINs

Parents can enroll children, and some children are enrolled because their number was misused. When you claim a dependent who has an IP PIN, an e-filed return must include that PIN, and a wrong or missing one produces IND-996. Our IND-996 guide covers that code on its own.

To get a child's IP PIN, the parent generally has to verify the child's identity. The online account route is not open to anyone under 18: the IRS says minors must use one of its alternative enrollment options instead. At a Taxpayer Assistance Center the IRS asks for two forms of identification for the dependent, such as a birth certificate and Social Security card. If the reason your dependent was locked is that someone else claimed them, see dependent already claimed.

If you cannot get your IP PIN in time

You can file on paper. The IRS FAQ says dependents' IP PINs are not needed on a paper return. For the primary taxpayer and spouse, a missing or incorrect IP PIN on paper does not stop the return, but it will take longer to process while the IRS validates it.

Before choosing paper, weigh the refund delay. The IRS says refunds on mailed returns take 6 weeks or more, compared with most e-filed refunds within 21 days. If you only need a few days to get into your online account, waiting and e-filing is usually faster overall. If the deadline is close, the e-file rejection grace period gives you extra calendar days to resubmit.

Filing after October 15, 2026: which IP PIN do you need?

Use your 2026 IP PIN on any federal return you file before the end of 2026, including a late 2025 return or a return for an earlier year. The IRS says an IP PIN is valid for one calendar year and must be used on every federal return filed during that year, prior-year returns included. The 2027 IP PIN will be the one for returns filed in 2027, such as your 2026 return due April 15, 2027.

• Retrieve it before mid-November. The IRS says the IP PIN is generally viewable in the online account from mid-January through mid-November, so get the number now if you still have a return to file this year.
• Rejected on October 15, 2026? The 5-day window to resubmit an extended 2025 return electronically closed on October 20, 2026. A paper return mailed within 10 calendar days of the rejection notice can still count as on time under IRS Publication 1345, and dependents' IP PINs are not needed on paper. For an October 15 rejection that window ends October 25, 2026; the grace period guide explains what to enclose.