When the IRS Mails Your IP PIN and What to Expect

The IRS mails IP PINs in batches, typically between late May and mid-June each year

If you have been issued an IP PIN (Identity Protection Personal Identification Number) by the IRS, the agency mails it to you rather than delivering it online. The timing depends on how you received the PIN in the first place. If the IRS assigned you one because your tax return was flagged for identity theft, or because you requested one through their online tool, you should expect the physical letter to arrive in your mailbox roughly four to six weeks after the IRS processes your request or detects the issue.

The exact mailing window shifts slightly each year based on IRS workload and processing capacity. In recent years, most PINs have been mailed between late May and mid-June for the current tax year. However, if you request an IP PIN outside the standard season — say, in August or December — the IRS may mail it to you within two to three weeks instead, since they are not processing the high volume that comes during tax season.

The letter arrives in a white envelope marked with the IRS seal. Inside is a notice (usually Form 4883-C or a similar identity protection letter) that contains your unique nine-digit PIN. Keep this letter in a safe place. You will need the PIN to file your tax return that year, and the IRS will not mail you a replacement if you lose it.

Key Takeaways

IP PINs are mailed by the IRS, not sent by email or text, and typically arrive four to six weeks after your request or after the IRS flags your account for identity theft.
During tax season (May through June), the IRS mails IP PINs in large batches, so delivery may take longer if you request one in March or April.
The PIN arrives in a white envelope with the IRS seal and contains a notice with your nine-digit number that you must enter when filing your return.
If you do not receive your PIN by late June and you need to file your return, contact the IRS at 1-800-908-4490 to confirm the mailing address on file.

Why the IRS mails PINs instead of sending them online

The IRS deliberately uses mail rather than email or online portals to deliver IP PINs because the PIN itself is a security credential. If the IRS emailed the PIN, a scammer who had already compromised your email account could intercept it. By mailing it to your home address, the IRS assumes the letter reaches only you and your household.

This approach also creates a paper trail. When you receive the PIN in the mail, you have proof of receipt and a document to store. If someone later tries to file a fraudulent return using your Social Security number, you can show the IRS that you received the PIN on a specific date and that the fraudster could not have had it.

What happens if your PIN does not arrive by late June

If you requested an IP PIN and it has not arrived by late June, first check that the mailing address on file with the IRS is correct. You can verify this by logging into your IRS account at irs.gov using your username and password, or by calling the IRS at 1-800-908-4490. Have your Social Security number, date of birth, and filing status ready.

If the address is wrong, you can update it online or by phone, and the IRS will mail a new PIN to the corrected address. This process typically takes another two to three weeks. If the address is correct but you still have not received the PIN, ask the IRS representative to confirm whether the PIN was mailed and to provide the date it was sent. Some PINs are lost in the mail, and the IRS can reissue one.

If you need to file your return before the PIN arrives, you have limited options. You cannot file electronically without the PIN — the IRS system will reject your return. You can file a paper return by mail without the PIN, but this delays processing and increases the risk of errors. Most tax professionals recommend waiting for the PIN to arrive before filing, even if it means filing closer to the deadline.

IP PINs issued after identity theft is detected

If the IRS detected that someone filed a fraudulent return using your Social Security number, the agency will assign you an IP PIN automatically and mail it to you. This typically happens within two to four weeks of the IRS identifying the fraud. You will receive a notice explaining that your account was compromised and that you must use the PIN to file your legitimate return.

In these cases, the IRS also places a fraud alert on your account. This means that for the next year, anyone trying to file a return with your Social Security number will be blocked unless they provide the correct PIN. The PIN is your proof that you are the legitimate taxpayer.

How to request an IP PIN before tax season

You do not have to wait for the IRS to detect fraud. If you are concerned about identity theft, you can request an IP PIN yourself through the IRS website at irs.gov/identity-protection-pin. The online tool is available year-round, though the IRS recommends requesting a PIN before January 31 if you want it before tax season begins.

When you request a PIN online, you will need to verify your identity by answering security questions or by uploading a photo of your driver's license or passport. Once the IRS confirms your identity, it will mail the PIN to the address on file. This process usually takes four to six weeks during tax season and two to three weeks outside of tax season.

If you cannot use the online tool — for example, if you do not have internet access or if the tool tells you it cannot verify your identity — you can request a PIN by calling the IRS at 1-800-908-4490. A representative will verify your identity over the phone and mail the PIN to you. Phone requests typically take the same amount of time as online requests.

Mailing delays and what to do about them

Postal delays happen, especially during the busy tax season. If your PIN is more than two weeks late, do not assume it is lost. The IRS mails millions of PINs each year, and some take longer than others depending on your location and local mail volume.

Before contacting the IRS, check your mailbox carefully and ask household members whether they may have opened the envelope. The PIN letter is sometimes mistaken for junk mail. If you are certain the letter has not arrived, call the IRS at 1-800-908-4490 and provide your Social Security number and date of birth. The representative can confirm the mailing date and address, and can reissue the PIN if it was lost.

Do not request a new PIN online if you have already requested one by phone or vice versa. Multiple requests can cause confusion and delays. Wait at least three weeks after your first request before contacting the IRS again.

Using your IP PIN when you file

Once you receive your PIN, you will enter it on your tax return. If you file electronically, the tax software will ask for the PIN before you submit your return. If you file on paper, you will write the PIN in a specific box on the form (usually Form 1040 or the form you use for your filing status).

Your PIN is unique to you and changes each year. If you receive a PIN for 2024, you will receive a different PIN for 2025. The IRS will mail the new PIN in the same timeframe — typically late May or June — unless you request it earlier.

Keep your PIN confidential. Do not share it with anyone except a tax professional you hire to prepare your return. The IRS will never ask you for your PIN by phone, email, or text message.

Frequently Asked Questions

Can I file my tax return without waiting for my IP PIN to arrive?

No, not electronically. If you file online, the IRS system requires the PIN before accepting your return. You can file a paper return by mail without the PIN, but this takes longer to process. Most people wait for the PIN to arrive rather than file on paper.

What if I lose the letter with my IP PIN?

Call the IRS at 1-800-908-4490 and ask for a replacement. Have your Social Security number and date of birth ready. The IRS can reissue the PIN over the phone or mail a new letter. If you need the PIN immediately, the representative may be able to read it to you over the phone.

Does everyone get an IP PIN?

No. The IRS issues IP PINs only to people whose accounts show signs of identity theft or fraud, or to people who request one because they are concerned about their security. Most taxpayers do not have an IP PIN and do not need one.

Can I change my IP PIN if I think someone knows it?

Yes. Contact the IRS at 1-800-908-4490 and explain that you believe your PIN has been compromised. The IRS can issue a new PIN immediately over the phone or mail a new one to you. Do not use a compromised PIN to file your return.

What if the IRS mailed my PIN to the wrong address?

Update your address with the IRS as soon as possible through your online account at irs.gov or by calling 1-800-908-4490. Once your address is corrected, the IRS can reissue the PIN and mail it to the new address. This usually takes two to three weeks.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.