Your employer must send your W2 by January 31

Your employer is required by the IRS to mail or deliver your W2 form by January 31 of the year following the tax year it covers. So for income you earned in 2024, your W2 arrives by January 31, 2025. This deadline is firm — employers who miss it face penalties.

The form goes to the address your employer has on file, which is usually where you receive your paychecks or the mailing address you provided when you were hired. If you've moved since then, your W2 may arrive at an old address, which is why updating your address with your employer matters before the end of the year.

The IRS also receives a copy of your W2 at the same time your employer sends it to you. This means the government already knows what your W2 says before you file your tax return, so the numbers need to match what you report.

Key Takeaways

  • Employers must send W2 forms by January 31, and the IRS receives a copy simultaneously, so your numbers must match when you file.
  • If you don't receive your W2 by early February, contact your employer's payroll or HR department to confirm your mailing address and request a reprint.
  • You can file your tax return without your W2 if it arrives after January 31, but you'll need to amend your return once the form shows up.
  • If your employer goes out of business or you can't locate them, the IRS has a process to help you get a copy or file without one.

What to do if your W2 hasn't arrived by early February

Wait until early February before taking action — mail can be slow, and some employers send forms in batches. If it's February 5 or later and you still don't have it, call your employer's payroll or human resources department. Have your Social Security number and the last four digits of your employee ID ready.

Ask them to confirm the mailing address they have on file. If it's wrong, give them the correct one and ask them to reprint and resend your W2. Most employers can do this within a few business days. If they say they already mailed it, ask them to check the tracking or resend it to the correct address.

Keep a record of who you spoke with, when, and what they said. If your employer is unresponsive or you can't reach them, you have other options — but documenting your attempts matters.

Filing your return before your W2 arrives

You can file your tax return without your W2 if the deadline is approaching and your form hasn't arrived. Use your final pay stub from 2024 as a substitute — it shows your year-to-date earnings, federal withholding, and other deductions. The numbers should match what will appear on your W2.

When you file this way, you're filing based on information you have, not on the official W2. The IRS will compare your return to the W2 your employer sends them. If the numbers match, nothing happens. If they don't match, the IRS will send you a notice asking for an explanation or correction.

Once your W2 arrives, compare it to what you filed. If the numbers are different, you'll need to file an amended return using Form 1040-X. This is common and not a problem — it just means correcting the record.

When your employer is out of business or unreachable

If your employer has closed, gone bankrupt, or you genuinely cannot locate them after reasonable effort, contact the IRS at 1-800-829-1040. Explain the situation and provide the employer's name, address, and the dates you worked there. The IRS can sometimes locate a copy of your W2 or help you file without one.

You may also contact your state's Department of Revenue or Labor — they sometimes have records of W2s filed by employers in their state. If you worked for a federal contractor or received a Form 1099 instead of a W2, different rules apply, and the IRS can guide you through those.

Corrected W2s (Form W2-C)

Sometimes an employer discovers an error on your W2 after sending it — wrong withholding amount, wrong Social Security number, wrong income total. When this happens, they send a corrected W2, called a Form W2-C. This form replaces the original, and you should use the corrected version when you file.

If you've already filed your return using the incorrect W2, you'll need to file an amended return once the corrected form arrives. The IRS will have received both the original and corrected W2 from your employer, so they'll know to expect the amendment.

Multiple W2s from different employers

If you worked for more than one employer during the year, you'll receive a separate W2 from each one. All of them must arrive by January 31. You'll report income from all of them on your tax return, and the IRS will have received copies of all of them.

When you file, add up the total income from all your W2s, and add up the total federal withholding. If one employer withheld too much and another too little, the net result is what matters for your refund or balance owed.

Frequently Asked Questions

Can I file my taxes without my W2?

Yes, you can file using your final pay stub if your W2 is late. However, if the numbers on your pay stub don't match the W2 your employer sends to the IRS, you'll receive a notice and may need to file an amended return. It's better to wait for the actual W2 if you can.

What if my W2 shows the wrong amount of income or withholding?

Contact your employer's payroll department immediately. They can issue a corrected W2 (Form W2-C) and send it to you and the IRS. If you've already filed, you'll amend your return once the corrected form arrives. Don't ignore the error — the IRS will catch the discrepancy.

Do I need to keep my W2 after I file my taxes?

Yes. Keep your W2 for at least three years in case the IRS has questions about your return. If you're claiming a mortgage deduction, education credits, or other itemized deductions, keep supporting documents for seven years. Store them in a safe place or digitally.

What if I lost my W2 after filing?

Contact your employer and ask for a duplicate copy. They're required to provide one. You can also request a transcript from the IRS that shows the W2 information they received from your employer — call 1-800-829-1040 or visit IRS.gov.

Does the W2 deadline change if January 31 falls on a weekend?

No. The deadline is January 31 regardless of the day of the week. However, if it falls on a Saturday or Sunday, employers typically mail forms a few days earlier so they arrive by the deadline. If it falls on a holiday, the deadline shifts to the next business day.