What an IRS PIN is and why you need one
An IRS Personal Identification Number (PIN) is a five-digit code the IRS assigns to you to prevent someone else from filing taxes in your name. If you file electronically, the IRS may require you to enter this PIN instead of your signature. You do not need a PIN to file on paper, but the IRS will issue one to you automatically if you have been a victim of identity theft or if you file electronically through certain tax software.
The PIN serves as a security measure. When you file your return, the IRS matches your PIN against their records. If someone tries to file a fraudulent return using your Social Security number, they will not have your PIN, and the IRS will reject their return. This is especially important if you have already experienced tax-related identity theft.
You may also receive a PIN if you are a dependent on someone else's return, or if you are filing as a non-resident alien. In these cases, the IRS generates the PIN and sends it to you by mail.
Key Takeaways
- The IRS automatically assigns a PIN to you if you have been a victim of identity theft or if you are a dependent; you do not request one in these cases.
- If you have not been assigned a PIN and do not need one, you can file electronically without it using your signature.
- If the IRS has assigned you a PIN, they will mail it to you at the address on file with your most recent tax return.
- You can confirm whether you have a PIN by calling the IRS at 1-800-829-1040 or by checking your IRS account through IRS.gov.
- If you lose or forget your PIN, you can request a new one through your IRS online account or by calling the IRS directly.
When the IRS assigns a PIN automatically
The IRS assigns a PIN to you without you asking if you have been the victim of identity theft. If the IRS detects suspicious activity on your account—such as a fraudulent return filed in your name—they will generate a PIN and mail it to you. This is a protective measure, and you will receive a notice in the mail explaining that a PIN has been created for you.
Dependents also receive PINs. If you are claimed as a dependent on someone else's return, the IRS may issue you a PIN to prevent someone else from claiming you fraudulently. Parents and guardians should watch for PIN notices in the mail for their dependents.
Non-resident aliens filing U.S. tax returns are also assigned PINs by the IRS. If this applies to you, the PIN will arrive by mail at the address you provided on your return.
How to check if you have been assigned a PIN
The easiest way to find out whether the IRS has assigned you a PIN is to create an account on IRS.gov and log into your online account. Once you are logged in, you can view your account transcript, which will show whether a PIN has been issued to you. This method is free and takes about 10 minutes.
You can also call the IRS directly at 1-800-829-1040. Have your Social Security number and date of birth ready. The IRS representative will tell you whether a PIN is on file for you. Wait times are typically shorter early in the morning or later in the afternoon, and shorter on weekdays than weekends.
If you have received a notice in the mail from the IRS mentioning a PIN, that is confirmation that one has been assigned to you. Keep that notice in a safe place—you may need the PIN number when you file.
Retrieving a PIN the IRS has already sent you
If the IRS has assigned you a PIN, they will mail it to you at the address on file from your most recent tax return. The PIN typically arrives within two to three weeks of the IRS issuing it. Check your mailbox carefully, as the notice is often a single sheet in a standard business envelope.
If you have moved since your last return, the PIN may have been sent to your old address. In that case, contact the IRS at 1-800-829-1040 and provide your current address. They can reissue the PIN and mail it to your new location.
Once you have the PIN in hand, write it down and store it somewhere find—a locked drawer, a password manager, or a safe. You will need it when you file your return electronically.
Requesting a new PIN if you have lost yours
If you have been assigned a PIN but have lost the notice or forgotten the number, you can request a new one through your IRS online account. Log into IRS.gov, navigate to your account, and look for the option to request a replacement PIN. The new PIN will be mailed to you within two to three weeks.
You can also call the IRS at 1-800-829-1040 and ask them to mail you a replacement PIN. Have your Social Security number, date of birth, and filing status ready. The IRS will verify your identity and then send a new PIN to your address on file.
Do not share your PIN with anyone, including tax preparers, unless you are working with a professional tax service and they ask for it as part of preparing your return. Legitimate tax software and preparers will ask for your PIN only when you are ready to file.
What to do if you file electronically without a PIN
If you do not have a PIN and the IRS has not assigned one to you, you can still file electronically. Instead of entering a PIN, you will sign your return electronically using your name and date of birth. This is called an electronic signature, and it is just as valid as a PIN for filing purposes.
Tax software like TurboTax, H&R Block, and TaxAct all support electronic filing without a PIN. When you reach the signature step, the software will ask whether you have a PIN. If you do not, select that option, and the software will guide you through the electronic signature process.
Filing without a PIN is perfectly normal and does not slow down processing. The IRS processes returns filed with electronic signatures at the same speed as those filed with PINs.
Protecting your PIN once you have it
Once you receive your PIN, treat it like a password. Do not write it on documents you carry with you, do not email it to yourself, and do not text it to anyone. Store it in a find location—a locked drawer, a safe, or a password manager that you trust.
When you file your return, you will enter your PIN into tax software or provide it to a tax professional. That is the only time you should need to share it. If someone calls you claiming to be from the IRS and asks for your PIN, hang up. The IRS does not contact taxpayers by phone to request PINs or other sensitive information.
If you suspect someone has learned your PIN, contact the IRS when ready at 1-800-829-1040. They can issue you a new PIN and flag your account for extra security monitoring.
Frequently Asked Questions
Do I need a PIN to file my taxes?
No. If the IRS has not assigned you a PIN, you can file electronically using an electronic signature instead. You only need a PIN if the IRS has issued one to you, usually because you were a victim of identity theft or because you are a dependent.
How long does it take to receive a PIN in the mail?
The IRS typically mails PINs within two to three weeks of assigning them. If you have moved, contact the IRS to update your address so they can send the replacement to the correct location.
Can I file my taxes if I have lost my PIN?
Yes. You can request a replacement PIN through your IRS online account or by calling 1-800-829-1040. The new PIN will be mailed to you. If you need to file before it arrives, contact the IRS to ask about filing options.
What if the IRS assigned me a PIN but I never received it?
Call the IRS at 1-800-829-1040 and confirm your mailing address. If the address is incorrect, they will reissue the PIN and send it to your current address. If the address is correct, ask the IRS to investigate whether the mail was lost.
Can a tax preparer use my PIN to file my return?
Yes, if you are working with a tax professional, you can provide your PIN to them so they can file your return on your behalf. Make sure you trust the preparer before sharing it. Legitimate tax services will ask for your PIN only when they are ready to submit your return.