Your employer must send your W2 by January 31 each year

The important date for employers to mail or deliver W2 forms to employees is January 31 of the year following the tax year. So for work you did in 2024, your employer must send the W2 by January 31, 2025. This is a legal requirement set by the Internal Revenue Service (IRS), not a suggestion — employers who miss this date face penalties.

The same January 31 important date applies whether your employer sends the form by mail, email, or hands it to you in person. If you work for a large company with many employees, yours may arrive in early January. If you work for a small business, it might come closer to the important date. Either way, January 31 is the last day your employer can send it.

Your employer must also send a copy of your W2 to the IRS and your state tax authority by the same date. This means the IRS knows what your employer reported about your income before you even file your own tax return.

Key Takeaways

  • Your W2 must arrive by January 31 of the following year, though many employers send them in early January.
  • The form can be delivered by mail, email, or in person — the method does not change the important date.
  • If you do not receive your W2 by early February, contact your employer's payroll or human resources department first.
  • You can file your tax return without your W2 if it is delayed, but you will need the information from it to report your income accurately.
  • The IRS has a process to help you if your employer does not send the form or sends incorrect information.

What to do if your W2 is late

If you have not received your W2 by early February, start by contacting your employer directly. Call or email the payroll department and ask them to resend it or confirm they mailed it. Many employers keep records of when forms were sent, so they can tell you the date and address it was mailed to. If your address has changed since you left the job, the form may have been sent to an old address.

If your employer says they mailed it but you never received it, ask them to send a duplicate by email or have you pick it up in person. This is faster than waiting for a replacement to arrive by mail. Keep a record of when you contacted them and what they told you — you may need this if the IRS asks why your W2 arrived late.

If your employer will not send the W2 or says they never received your current address, you can file a complaint with your state labor department or the IRS. The IRS has a form called Form 4852 that lets you estimate your income and file your tax return without the W2, though this is a last resort and requires documentation of what you earned.

When you can file your tax return without your W2

You do not have to wait for your W2 to arrive before filing your tax return, though you will need the information from it. If your W2 is significantly delayed and you are owed a refund, filing early can get your money back faster. However, you must report the correct income amount — guessing or using last year's W2 can cause problems with the IRS.

If you file before your W2 arrives, use the pay stubs from your final paycheck to find your year-to-date income, federal tax withheld, and other information. This should match what appears on your W2. When your W2 finally arrives, compare it to what you reported. If the numbers are different, you may need to file an amended return using Form 1040-X.

Why January 31 matters for your tax filing

The January 31 important date exists so that employees have time to gather their tax documents before the April 15 tax filing important date. In practice, most employers send W2 forms in early to mid-January, giving you six to eight weeks to review them and file. This window is also when tax software companies update their systems to accept W2 information and when tax preparers are most available.

The IRS also uses the January 31 important date to give itself time to match what employers reported to what employees report on their own tax returns. If there is a mismatch — for example, your employer reports you earned $50,000 but you report $45,000 — the IRS will notice and may send you a letter asking for an explanation.

What information appears on your W2

Your W2 shows your total wages for the year, federal income tax withheld, Social Security tax withheld, Medicare tax withheld, and other information your employer is required to report. It also includes your employer's name and address, your name and Social Security number, and the state where you worked. Some employers include additional boxes for things like tips, dependent care benefits, or education information.

You will receive multiple copies of your W2. One goes to you, one goes to the IRS, one goes to your state tax authority, and some employers keep one for their records. You need the copy sent to you to file your federal and state tax returns. If you lose it, your employer can print another copy, though this may take a few days.

Different rules if you worked for multiple employers

If you worked for more than one employer during the year, each one must send you a separate W2 by January 31. You will receive one W2 from each employer showing only the income and taxes from that job. When you file your tax return, you must report income from all of them — the IRS will see all the W2s your employers sent in, so leaving one out will trigger a notice.

If you changed jobs during the year, your first employer sends a W2 for the months you worked there, and your second employer sends a W2 for the months you worked there. Neither one shows your full-year income — you add them together when you file.

Frequently Asked Questions

Can my employer email my W2 instead of mailing it?

Yes. The IRS allows employers to send W2 forms by email, mail, or in person. Email is often faster. Make sure you save the email and any attachments in case you need to reference it later. If your employer asks for permission to email it, you can agree or ask for a printed copy instead.

What if my W2 shows the wrong income or tax amount?

Contact your employer's payroll department when ready and ask them to issue a corrected W2, called a Form W2-C. They must send the corrected form to you, the IRS, and your state. Do not file your tax return using the incorrect W2 — wait for the corrected version if possible, or file an amended return after you file the original.

Do I need my W2 to file my tax return on time?

No. You can file your tax return before your W2 arrives if you have the information from your pay stubs. However, you must report the correct income amount. If your W2 shows different numbers when it arrives, you will need to file an amended return to correct it.

What if my employer goes out of business before sending my W2?

Contact the IRS at 1-800-829-1040 or file Form 4852 to report that you cannot obtain your W2. The IRS can help you file your tax return using your pay stubs and other records. You may also contact your state labor department, which sometimes has records of wages paid by businesses that have closed.

Can I file my taxes if I never receive my W2?

Yes, but it requires extra steps. You can use Form 4852 to estimate your income based on pay stubs, bank deposits, or other records. This form tells the IRS why you could not provide your W2. Keep copies of any documentation you used to support your income report in case the IRS asks questions later.