What goes in each box on the W2

A W2 form has 14 numbered boxes plus some unnumbered fields. Your employer fills most of it — you do not fill out a W2 yourself. What you receive is already completed, and you use it to fill out your tax return. If you are self-employed or received a 1099 instead, you follow different rules.

The boxes your employer must complete are: Box 1 (wages, tips, other compensation), Box 2 (federal income tax withheld), Box 3 (Social Security wages), Box 4 (Social Security tax withheld), Box 5 (Medicare wages), Box 6 (Medicare tax withheld), Box 12 (deferred compensation or other items), and Box 20 (state income tax withheld). Boxes 7 through 11 cover Social Security tips, allocated tips, dependent care benefits, uncollected Social Security or Medicare tax, and nonqualified plans. Your employer's name, address, and EIN go in the top section. Your name, address, and Social Security number go in the employee section.

If any box is blank or shows zero when you know you earned income or had taxes withheld, contact your employer's payroll department before filing. A missing or incorrect amount can trigger an IRS notice later.

Key Takeaways

  • Your employer completes the W2 and sends you a copy by January 31 — you do not fill it out yourself.
  • Box 1 shows your total wages for the year, and Box 2 shows federal tax your employer withheld from your paychecks.
  • You use the W2 to fill out your tax return, transferring the amounts from the W2 to the corresponding lines on Form 1040.
  • If any box is blank, incorrect, or missing when you receive it, ask your employer to send you a corrected W2 (Form W2-c) before you file.
  • Keep your W2 with your tax records for at least three years in case the IRS asks questions about your income or withholding.

How to use your W2 when filing your tax return

When you sit down to file taxes, you transfer information from your W2 to your tax return. If you use tax software, you enter the amounts from specific boxes and the software places them in the right spots. If you file by hand, you write the amounts directly onto Form 1040 or 1040-SR.

Box 1 (wages) goes on line 1a of Form 1040. Box 2 (federal withholding) goes on line 25. If you had more than one job, you receive a separate W2 from each employer, and you add all the Box 1 amounts together on line 1a. The same applies to Box 2 — add all federal withholding from all W2s and enter the total on line 25.

Boxes 3 through 6 are informational for you and the IRS — they show how much of your wages were subject to Social Security and Medicare tax and how much was withheld. You do not enter these on your return; the IRS uses them to verify your Social Security and Medicare records are correct.

What to do if your W2 has errors or arrives late

If you notice an error on your W2 — wrong name, wrong Social Security number, wrong income amount, or wrong withholding — contact your employer's payroll or HR department right away. Ask them to issue a corrected W2, which is called a Form W2-c. Your employer must send you the corrected form and file it with the IRS.

If your employer does not send you a W2 by February 15, you can contact the IRS at 800-829-1040 or file Form 4852 (Substitute for Form W2) with your tax return. Form 4852 lets you report your income based on your own records — paystubs, bank deposits, or other documentation — if your employer fails to provide the W2. You will need to show the IRS you made a good-faith effort to get the W2 from your employer first.

If you lost your W2, ask your employer for a duplicate copy. They are required to keep records and can print another one. If your employer is out of business or unreachable, the IRS can help you reconstruct your income using their records, though this takes longer.

Understanding the state and local tax sections

The bottom of the W2 has boxes for state and local income tax. Box 19 shows state income tax withheld, Box 20 shows the state where you worked, and boxes 21 and 22 show local income tax withheld and the locality. Not all states have income tax, and not all localities do either, so some of these boxes may be blank or show zero.

When you file your state tax return, you use Box 19 (state withholding) the same way you use Box 2 on your federal return — you enter it as a credit for taxes already paid. If you worked in more than one state during the year, you receive a separate W2 from each employer, and each W2 shows the state where that job was located. You may need to file part-time returns in multiple states depending on where you lived and where you worked.

If you moved during the year and your W2 shows a state you no longer live in, that is normal — the W2 reflects where you earned the income, not where you live now. Your state tax return goes to your current state of residence.

Boxes 12 and 14: Special items and other information

Box 12 can contain several different types of income or deductions, each marked with a letter code. Common codes include D (401k contributions), E (employee stock purchase plan), and G (employer-provided educational assistance). The letter tells you what kind of amount it is. If Box 12 has an entry, read the code and look up what it means — your employer should provide a guide, or you can find the codes on the IRS website.

Box 14 is labeled "Other" and employers use it to report items that do not fit in the standard boxes. This might include union dues, professional licenses, or other job-related expenses your employer paid on your behalf. The label in Box 14 tells you what the amount represents. Some of these items may be deductible on your tax return, and some may not — check the IRS rules for the specific item.

If you do not understand what an entry in Box 12 or Box 14 means, ask your employer's payroll department for clarification before you file. Entering the wrong amount or in the wrong place on your return can cause problems later.

Keeping records and storing your W2

Keep your W2 and any corrected W2-c forms you receive with your tax return and supporting documents. The IRS recommends keeping tax records for at least three years from the date you file. If you claim a deduction related to your job or if you have questions about your income later, you may need to show the W2 as proof.

Store your W2 in a safe place — a file folder, a safe deposit box, or a scanned digital copy stored securely. Do not throw it away after you file, even if you file electronically. If the IRS ever audits your return or questions your income, the W2 is your primary document proving what you earned and what was withheld.

If you file taxes electronically, the tax software stores a copy of your return, but you should also keep a paper copy or PDF of your actual filed return along with your W2. This creates a complete record of what you reported to the IRS.

Frequently Asked Questions

Do I need to sign my W2?

No. Your employer signs the W2 to certify it is correct. You do not sign it. You simply receive it, check it for errors, and use it to file your tax return.

What if I have multiple W2s from different employers?

Add up all the amounts from Box 1 on each W2 and enter the total on line 1a of your tax return. Do the same for Box 2 (federal withholding) and enter the total on line 25. File all the W2s with your return or keep them with your records.

Can I file my tax return before I receive my W2?

You can file once you have received all your W2s. If one employer is late, you can file Form 4868 to request an extension, or you can file a preliminary return and amend it later when the W2 arrives. Filing without all your W2s risks reporting incomplete income.

What does it mean if Box 2 shows more tax withheld than I expected?

Your employer withheld federal tax based on the W4 form you filled out when you started the job. If too much was withheld, you will receive a refund when you file. If too little was withheld, you will owe. You can adjust your W4 at any time to change future withholding.

Is my W2 the same as my tax return?

No. Your W2 is a record of what you earned and what was withheld. Your tax return is the form you file with the IRS that uses the W2 information plus any other income, deductions, or credits you have. The W2 is one piece of your return, not the return itself.