W-2 Form: What It Shows and How It Works

What a W-2 form is

Form W-2, officially called the Wage and Tax Statement, is a tax document an employer prepares for each employee. It summarizes compensation paid and certain taxes withheld during the calendar year. The employer sends copies to the employee and the Social Security Administration (SSA), and the information is also reported to the Internal Revenue Service (IRS).

The form provides information used when filing an individual income tax return. It is not the return itself, a paycheck, or a complete record of every detail of a person’s finances. It covers the wages and withholding reported by that employer. Someone who worked for more than one employer may receive a separate W-2 from each one.

W-2s are generally issued for employees, not independent contractors. A contractor may receive a different tax form, depending on the circumstances. The distinction depends on the nature of the working relationship, not simply on whether a person works full-time or receives payment electronically. When classification is unclear, the IRS or a qualified tax professional can explain the applicable rules.

Who receives a W-2 and when

An employer generally furnishes a W-2 to each employee who meets the reporting requirements. The form covers a calendar year, even if the employer’s business or payroll accounting uses another fiscal schedule. Employers generally must provide employee copies by January 31 following the year covered, subject to applicable rules and exceptions. Delivery may be on paper or electronic, with electronic delivery subject to requirements.

Employees who changed jobs during the year should expect a W-2 from each employer that paid them as an employee. A person who had several jobs at once may likewise have several forms. If an employer changed payroll providers, the relevant employer is still responsible for ensuring its wage and tax information is reported correctly.

Keep each W-2 with other tax records. The form is useful when preparing a return and when checking whether reported wages and withholding match your own records. If you have moved, check that your former employer has a way to deliver the form, and review any payroll portal or electronic delivery notice the employer uses.

How to read the main boxes

The boxes separate different kinds of information. The most commonly used entries include:

Boxes a–f: Employee and employer identifying information, including names, addresses, and identification numbers. These details help associate the reported wages with the right people and employer.
Box 1: Wages, tips, and other compensation generally used in calculating federal taxable wages. It may differ from gross pay shown on pay stubs.
Box 2: Federal income tax withheld from pay. This is withholding paid toward federal income tax, not the final tax bill.
Boxes 3 and 4: Social Security wages and Social Security tax withheld.
Boxes 5 and 6: Medicare wages and tips, and Medicare tax withheld.
Box 12: Coded information about certain forms of compensation or benefits. The meaning depends on the letter code printed with the amount.
Boxes 15–17: State identification and state wages and income tax withheld, when applicable. Local wage and tax entries may appear in later boxes.

Some boxes may be blank, and not every employee has every type of compensation or withholding. The form includes instructions and code explanations; consult them rather than guessing what an unfamiliar entry means. Employer-provided benefits, retirement contributions, and other payroll items can affect how amounts appear in different boxes.

Why W-2 wages may differ from gross pay

A common source of confusion is that Box 1 may not equal the total gross pay accumulated on a paycheck or year-end payroll summary. Some payroll deductions and benefits are treated differently for tax reporting, so the amount used for federal income-tax wages can be lower or otherwise different from total compensation. Social Security and Medicare wage boxes can differ from Box 1 as well, because the tax rules and wage definitions are not identical.

For example, an employee’s pay records might show gross wages before deductions, while the W-2 separately reflects certain contributions or benefits under applicable tax rules. That does not automatically mean the form is wrong. Compare the W-2 with year-end pay records and ask the employer’s payroll department to explain a discrepancy you cannot reconcile. Do not alter a W-2 yourself.

How a W-2 relates to tax withholding

Withholding is money an employer sends to tax authorities from an employee’s pay during the year. Box 2 reports federal income tax withheld; separate boxes report Social Security and Medicare withholding, and state or local income tax withholding may also appear. These amounts are not a calculation of the employee’s final tax liability.

When preparing a tax return, the taxpayer reports income and withholding according to the return’s instructions. The return determines the overall result based on the person’s full tax situation. A W-2 therefore does not, by itself, show whether someone must pay additional tax or is due a refund. Other income, deductions, credits, and circumstances may matter. For questions about an individual situation, the IRS or a qualified tax professional can provide appropriate guidance.

W-2 compared with other tax forms

A W-2 is distinct from forms used to report other kinds of payments. A Form 1099 may report certain nonemployee compensation, interest, or other income, depending on the form type and circumstances. A person may receive both a W-2 and one or more 1099 forms in the same year if they had different kinds of income.

The core distinction is the type of relationship and payment being reported: a W-2 generally reports wages from employment, while a 1099 form reports specified payments or income that are not reported as employee wages on a W-2. Receiving a 1099 does not automatically establish someone’s worker classification. If the form received seems inconsistent with the work arrangement, seek clarification from the payer or consult the IRS or a qualified professional.

What to do if information is missing or incorrect

Review the form for basic accuracy when it arrives. Check your name, address, identifying information, employer details, and wage and withholding amounts against your records. A misspelling or incorrect address may need correction even when the reported pay appears right. If an amount seems wrong, contact the employer or payroll department promptly and explain what you believe needs review.

If a correction is needed, the employer generally issues a corrected W-2, often marked “W-2c,” and submits the correction to the relevant agencies. Use the corrected information as directed when preparing or correcting a return. Do not cross out an amount or create your own replacement form.

If you have not received a W-2, first check with the employer and any payroll portal or electronic delivery system. Confirm that the employer has your current mailing details. If the form remains unavailable, the IRS has procedures for taxpayers who need to address a missing W-2; follow the agency’s current instructions. Estimates based on pay records may be relevant in that process, but should not be treated as a substitute document invented by the employee.

A W-2 contains sensitive personal and financial information, including identifying details and earnings. Store it with tax records in a secure place, whether on paper or digitally. If you need to send it to a tax preparer or another authorized recipient, use a secure method rather than posting it publicly or sending it through an untrusted channel.

Keep the W-2 and related records for the period recommended by the IRS for your circumstances. Record-retention needs can vary, and the W-2 is only one piece of supporting documentation. Follow the IRS’s current recordkeeping guidance, particularly if you amend a return or have a question about a past filing.

Frequently Asked Questions

Is a W-2 the same as a tax return?

No. A W-2 reports wages and certain withholding from an employer. A tax return uses that information along with other relevant details to calculate the taxpayer’s overall result.

Do I get a W-2 from every employer?

You generally receive a separate W-2 from each employer that paid you as an employee and is required to report your wages. If you had multiple employers, gather all applicable forms before preparing your return.

Why is Box 1 different from my gross pay?

Some payroll deductions or benefits receive different tax treatment, so Box 1 may not match gross pay on a pay stub. Compare the form with year-end payroll records and ask the employer to explain any amount that still does not make sense.

What if my W-2 has an error?

Contact the employer or payroll department and request that it review the information. If a correction is warranted, the employer generally issues a W-2c; do not edit the original form yourself.

Can I file without my W-2?

If the form is missing, contact the employer first and follow the IRS’s current procedure for unresolved missing forms. Do not guess at figures without consulting the agency’s instructions or a qualified tax professional.

Further reading: Internal Revenue Service. Details can change, so check the official page for anything that matters to you. Spotted a mistake? Tell us. How we write an answer.