A W-2 is the tax form your employer sends you showing how much you earned and what taxes were withheld

The W-2 form is an official document that reports your wages, salary, and the federal, state, and local income taxes your employer deducted from your paychecks during the year. Your employer is required by the Internal Revenue Service (IRS) to send you a W-2 by January 31 for the previous calendar year. You use this form to file your income tax return.

If you worked for more than one employer during the year, you will receive a separate W-2 from each one. The form shows exactly what you earned and what was already paid to the government on your behalf, which is why it is central to filing your taxes correctly.

Key Takeaways

  • Your employer must send you a W-2 by January 31 showing your total wages and all taxes withheld during the year.
  • The W-2 has six copies: you keep one for your records, one goes to the IRS, one to your state, and three go to your employer and other agencies.
  • Box 1 shows your taxable wages, and boxes 2 through 6 show federal, Social Security, Medicare, and state and local taxes withheld.
  • You need your W-2 to file your federal and state income tax returns, and the IRS already has a copy so your numbers must match.

The six copies of the W-2 and where each one goes

A W-2 form comes in six copies, each printed on different colored paper so they are straightforward to sort. Copy A (red) goes to the Social Security Administration. Copy B (blue) is your copy to keep for your records. Copy C (green) is also yours to keep with your tax return. Copy D (black) stays with your employer's payroll records. Copy 1 (yellow) goes to your state tax agency if you live in a state with income tax. Copy 2 (pink) goes to your local tax agency if your city or county taxes income.

You should receive copies B and C in the mail. Keep copy C with your tax return when you file. Copy B is your backup in case you need to reference the form later. The other copies are handled by your employer and the government agencies, so you do not need to do anything with them.

What each box on the W-2 tells you

The W-2 has numbered boxes that report different kinds of income and tax information. Box 1 shows your total taxable wages for the year — this is the number you use to calculate your federal income tax. Box 2 shows federal income tax withheld. Boxes 3 and 4 show Social Security wages and Social Security tax withheld. Boxes 5 and 6 show Medicare wages and Medicare tax withheld.

Box 12 reports other kinds of compensation or deductions, labeled with a letter code. For example, code D means 401(k) contributions, and code DD means health insurance premiums your employer paid. Box 14 shows state income tax withheld. Your employer fills in these boxes based on your paychecks throughout the year, so the totals should match what you saw on your pay stubs.

How your W-2 connects to your tax return

When you file your income tax return, you report the wages from Box 1 of your W-2 on your Form 1040 (the main federal tax return form). The IRS already has a copy of your W-2 from your employer, so the number you report must match exactly. If they do not match, the IRS will flag it and may delay your refund or send you a notice.

The taxes shown in Box 2 (federal withholding) are credits against what you owe. If you had too much withheld, you get a refund. If you had too little withheld, you owe the difference. This is why it is important to check your W-2 carefully — errors in the withholding amount can affect whether you owe money or get money back.

What to do if you do not receive your W-2 by early February

Your employer must mail your W-2 by January 31. If you do not have it by mid-February, contact your employer's payroll or human resources department and ask them to resend it or confirm they have your correct mailing address. If your employer cannot locate it or refuses to send it, you can call the IRS at 1-800-829-1040 and ask for Form 4852, which is a substitute for a missing W-2.

Do not file your tax return without your W-2 if you can avoid it. Filing without it and then amending your return later creates extra work and can delay your refund. If you are close to the tax important date and still waiting, contact your employer one more time in writing (email counts) so you have a record of your request.

The difference between a W-2 and a 1099

A W-2 is for employees — people who work for a company and receive a regular paycheck with taxes withheld. A 1099 is for independent contractors and self-employed people who do not have taxes withheld by a client or employer. If you are a freelancer, consultant, or run your own business, you will receive a 1099 instead of a W-2.

The key difference is that W-2 income is already taxed (your employer withheld it), while 1099 income is not. With a 1099, you are responsible for setting aside money for taxes yourself and paying estimated taxes quarterly. If you have both W-2 and 1099 income in the same year, you report both on your tax return.

Why your employer needs your W-4 to create your W-2

Before your employer can calculate how much federal tax to withhold from your paychecks, you fill out a W-4 form (Employee's Withholding Certificate). The W-4 tells your employer how many dependents you claim and whether you have other income, so they know how much to withhold. Your employer uses this information all year to calculate each paycheck, and then reports the total withheld on your W-2.

If you fill out your W-4 incorrectly, you may have too much or too little withheld, which means your W-2 will show the wrong amount in Box 2. You can update your W-4 at any time during the year if your situation changes, and your employer will adjust future paychecks accordingly.

Frequently Asked Questions

Can I file my taxes without my W-2?

You can file without it if you have a copy of your pay stub showing your year-to-date earnings, but the IRS already has your W-2 from your employer, so your numbers must match or they will send you a notice. It is better to wait for your W-2 or request a replacement from your employer.

What if my W-2 has the wrong amount or wrong name?

Contact your employer's payroll department when ready and ask them to issue a corrected W-2, called a W-2c. Your employer must send the corrected form to you and the IRS. Do not file your tax return with the wrong information — wait for the corrected form.

Do I need to keep my W-2 after I file my taxes?

Yes, keep your W-2 for at least three years in case the IRS has questions about your return. Many people keep them longer as part of their permanent financial records. Store them in a safe place with your other tax documents.

What happens if my employer does not send me a W-2?

If your employer does not send it by mid-February, call them and request it in writing. If they still refuse or cannot be reached, contact the IRS at 1-800-829-1040 and ask about Form 4852, which you can use as a substitute when filing your return.