Updated October 24, 2026. Quick answer: Tax Topic 154 is the IRS page on a Form W-2 or Form 1099-R that is missing or incorrect. It says to contact your employer or payer first, and that the IRS can be called at 800-829-1040 if the form still has not come by the end of February. If time runs out, Form 4852 can be used to complete the return.
Quick reference
| Item | What the IRS topic says |
|---|---|
| Who to contact first | “contact your employer/payer.” |
| When the IRS phone line comes in | “If you have contacted them and still haven’t received the missing or corrected form by the end of February, you may call the IRS at 800-829-1040 for assistance” |
| What the IRS sends you | “The IRS will also send you a Form 4852” |
| Substitute form for the return | “you may use Form 4852 to complete your return.” |
| If the real form arrives later and differs | “you must file Form 1040-X, Amended U.S. Individual Income Tax Return.” |
Step one: the employer or payer
The topic opens with the wage and retirement forms it covers. It names the Form W-2 and the Form 1099-R, and it says that if they “aren’t available to you by Feb. 2, 2026” or if the information is wrong, the first move is “contact your employer/payer.”
The IRS page describes this as a step you take before calling the IRS. It says “If you have contacted them and still haven’t received the missing or corrected form by the end of February, you may call the IRS at 800-829-1040 for assistance”.
Calling the IRS and what happens next
The topic lists what to have ready. It says “When you call, please have the following information available:” and then names two items. The first is “Your name, address (including ZIP Code), birthdate and taxpayer identification number”. The second is “Your employer/payer’s name, address (including ZIP Code) and, if available, an employer identification number (EIN)”.
On what the IRS does, the topic says “The IRS will contact the employer/payer for you and request they send you or make available to you the missing or corrected form.” It adds “The IRS will also send you a Form 4852”. The letter that comes with it carries instructions. The related site page Form 4852 walks through that substitute form.
Filing without the form, then correcting
The topic addresses the case where the form never arrives in time. It says “If you don’t receive the missing or corrected form in sufficient time to file your tax return, you may use Form 4852 to complete your return.” On the numbers to enter, it says “Estimate your wages or the payments made to you and any taxes withheld and report them on Form 4852.”
If the real form shows up afterward, the topic says “If you receive the missing or corrected Form W-2 or Form 1099-R after you file your return and the information differs from your estimates, you must file Form 1040-X, Amended U.S. Individual Income Tax Return.” It points readers to Topic no. 308 for more on amended returns. Our pages on Form 1040-X and on a wrong Form 1099-R cover the same ground in more detail.
Where this comes from
This page describes the IRS page titled Topic no. 154, Form W-2 and Form 1099-R (what to do if incorrect or not received), as served on irs.gov on October 24, 2026. The IRS page shows that it was last reviewed or updated on 24 Sep 2026. The IRS can change a topic after we read it, and the IRS page controls. General information, not tax or legal advice.
Common mistakes
- Calling the IRS first. The topic puts the employer or payer first: “contact your employer/payer.”
- Calling the IRS the moment a form is late. The phone step is tied to the end of February: “by the end of February”
- Assuming Form 4852 ends the matter. The topic says a later difference means “you must file Form 1040-X”
- Treating the estimate as a guess with no basis. The topic says to “Estimate your wages or the payments made to you and any taxes withheld”
Related: IRS tax topics by number, Form 4852, Form 1040-X, What to do when a 1099-R is wrong, Form W-2c notice to employee, W-2 boxes 1 to 8 explained, and W-2 filing deadline.
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Answer againSources
- IRS, Topic no. 154, Form W-2 and Form 1099-R (what to do if incorrect or not received) (irs.gov): https://www.irs.gov/taxtopics/tc154
- IRS, Tax topics index (irs.gov): https://www.irs.gov/taxtopics
Read from the IRS pages linked above on October 24, 2026. General information, not tax or legal advice. The IRS topic page and the instructions for your own form control, and your own facts decide the outcome.