W-2 Form: What It Means for Employers

What it means in practice

Every employer engaged in a trade or business that pays an employee must file Form W-2 for that employee in three situations, according to the IRS About Form W-2 page: income, Social Security or Medicare tax was withheld; income tax would have been withheld if the employee had claimed no more than one withholding allowance (for 2019 or earlier forms) or had not claimed exemption from withholding on Form W-4; or payments meet the applicable reporting threshold even without withholding. The rule applies even if the employee is related to the employer.

Who must get one in 2026. The 2026 General Instructions for Forms W-2 and W-3 say to file a Form W-2 for each employee if you withheld any income, Social Security or Medicare tax from wages regardless of the amount, if you would have had to withhold income tax under the no-more-than-one-allowance rule, or if you paid $2,000 or more in wages even though you did not withhold any of those taxes. Only in very limited situations does an employer not file, such as some election workers and some foreign agricultural workers paid under $2,000. The About Form W-2 page notes the reporting threshold is indexed for inflation for years beginning in 2027, so read the current instructions for the figure that applies to the year you are filing. Workers who are not employees are generally reported on Form 1099 (see independent contractor).

What the regulation requires on the statement. Under 26 CFR 31.6051-1, each statement must show the employer name, address and identification number; the employee name, address and Social Security number; total wages for income tax purposes; the income tax withheld; total wages for Social Security purposes; the employee Social Security and Medicare tax withheld; and other information the form or its instructions require. The employer must furnish the employee copy by January 31 of the following year under the regulation; the 2026 instructions give February 1, 2027 for 2026 wages.

The key money boxes. Box 1 is wages, tips and other compensation, and it excludes elective deferrals such as employee contributions to a 401(k) or 403(b) plan. It includes bonuses (including signing bonuses), noncash payments including certain fringe benefits, tips the employee reported, and designated Roth contributions, among other items. Box 2 is federal income tax withheld. Box 3 is Social Security wages and box 4 the Social Security tax withheld. Box 5 is Medicare wages and tips and box 6 the Medicare tax withheld, including any Additional Medicare Tax. See FICA for the underlying taxes and gross income for how wages are defined more broadly.

Why boxes 1, 3 and 5 can differ. The instructions say elective deferrals to arrangements such as a 401(k) are reported in box 3 even though they are not included in box 1. As our own illustration: an employee paid $60,000 who defers $5,000 to a 401(k) would have $55,000 in box 1 and $60,000 in boxes 3 and 5, because the deferral reduces income tax wages but not Social Security and Medicare wages. The wage base also creates a gap. The instructions give this example: if you paid an employee $199,750, enter 184500.00 in box 3 and 199750.00 in box 5, because there is no limit on Medicare wages. For 2026 the total of boxes 3 and 7 cannot exceed $184,500, and box 4 should not exceed $11,439 ($184,500 x 6.2%). The employer also withholds 0.9% Additional Medicare Tax on wages over $200,000 in a calendar year, with no employer share.

Box 12 codes and the other boxes. Box 12 reports specific items using a capital-letter IRS code followed by the amount, for example D 5300.00 for 401(k) elective deferrals. Codes include D (401(k) deferrals), E (403(b) deferrals), G (governmental 457(b) deferrals) and DD (the cost of employer-sponsored health coverage). New for 2026, code TA reports employer contributions to Trump accounts, code TP reports cash tips and code TT reports qualified overtime compensation, which supports the deduction the instructions describe for tax years after 2024 and before 2029 (see overtime). Copy A may carry no more than four box 12 items, so additional items go on a second Form W-2. Box 13 has three checkboxes: statutory employee, retirement plan and third-party sick pay. Boxes 15 through 20 carry state and local income tax information.

Statutory employees. The box 13 statutory employee checkbox is for workers who are independent contractors under common-law rules but treated by statute as employees for Social Security and Medicare tax, and it is not checked for common-law employees. The instructions list four groups: certain drivers who distribute beverages (other than milk), meat, vegetable, fruit or bakery products or pick up and deliver laundry or dry cleaning if they are the employer's agent or paid on commission; full-time life insurance sales agents working primarily for one company; people who work at home on goods the employer supplies and takes back, under the employer's specifications; and full-time traveling or city salespeople who take orders for merchandise for resale or supplies for use in the buyer's business.

Calendar-year basis. Entries are based on wages paid during the calendar year, not the period worked. The instructions give this example: if an employee worked December 13 through December 26, 2026, and was paid for that period on January 1, 2027, the wages belong on the 2027 Form W-2. Wages are tracked through payroll records by the date paid.

Who and what is on the form: names, numbers and addresses. The employee name should match the Social Security card, and the instructions stress the exact last name. If an employee has applied for a card but not received the number, enter "Applied For" on a paper form, or zeros when e-filing, and later correct the report with Form W-2c. An Individual Taxpayer Identification Number (ITIN) may not be used in place of a Social Security number on Form W-2. The employer EIN must match the one used on Forms 941, 943, 944, CT-1 or Schedule H. Employers may truncate the SSN on employee copies but not on Copy A, and may never truncate an EIN.

Filing with the SSA and Form W-3. Anyone required to file Form W-2 must file Form W-3 to transmit Copy A, and household employers with even one household employee must file it too. For 2026 wages the due date to file with the SSA is February 1, 2027, whether on paper or electronically. The SSA accepts only e-filed reports and the official red-ink Copy A (or approved substitutes); the instructions caution not to print Copy A from IRS.gov and file it. The SSA's Business Services Online lets employers create and submit Forms W-2 online for up to 50 forms at a time, with file upload for larger batches.

Furnishing employee copies. Copies B, C and 2 must generally reach employees by February 1, 2027 for 2026 wages, and mailing a properly addressed copy on or before that date satisfies the requirement. If employment ends before December 31, the employer may furnish copies any time after it ends, but if the employee asks, the instructions say to provide them within 30 days of the request or within 30 days of the final wage payment, whichever is later. Undeliverable employee copies must be kept for 4 years, not sent to the SSA.

Extensions. An extension to file with the SSA is not automatic: one 30-day extension may be requested on Form 8809 before the due date, and the IRS grants it only for extraordinary circumstances or catastrophe, such as a fire destroying the books and records. Even then, employee copies are still due on time. A separate request on Form 15397 can extend the time to furnish employee copies, generally for no more than 15 days, or 30 if clearly justified.

E-filing rule. You must e-file Forms W-2 if you are required to file at least 10 information returns. Add the Forms W-2 to returns such as the Form 1099 series, Form 1098 series, Form 1095-B and Form 1095-C. Corrected returns are counted separately. An additional Form W-2 used because of more than four box 12 items counts toward the total. An employer required to e-file can request a waiver on Form 8508 at least 45 days before the due date. Using a reporting agent or payroll provider does not relieve the employer of responsibility for timely, correct filing.

Correcting errors. If you find an error after giving the employee a form but before sending it to the SSA, check the VOID box on Copy A, prepare a new Form W-2, send the new Copy A to the SSA and write "CORRECTED" on the employee copies (never on Copy A). After filing, use Form W-2c with Form W-3c, as soon as possible after the error is found. If the original was required to be e-filed, the W-2c must be e-filed. A name or SSN change on a new Social Security card is corrected on the most recently filed Form W-2.

Reconciliation. The instructions tell employers to reconcile the totals on Form W-3 (boxes 2, 3, 5 and 7) with the yearly totals on Forms 941, 943, 944 or Schedule H. Differences lead the IRS and SSA to contact the employer. The Social Security and Medicare taxes on the quarterly returns should be approximately twice the Form W-3 amounts, because the returns include the employer share.

Penalties. The IRS instructions list penalties for returns due after December 31, 2026 for failing to file a correct Form W-2 by the due date and cannot show reasonable cause: $60 per form if corrected within 30 days of the due date (maximum $698,500 per year, or $244,500 for small businesses); $130 per form if filed more than 30 days late but by August 1 (maximum $2,095,500, or $698,500 for small businesses); and $340 per form if filed after August 1 or not filed (maximum $4,191,500, or $1,397,000 for small businesses). A small business has average annual gross receipts of $5 million or less for the three most recent tax years. As our own arithmetic: 12 forms filed correctly within 30 days late would be $60 x 12 = $720, while the same 12 forms never filed would be $340 x 12 = $4,080. Intentional disregard carries at least $690 per form with no maximum. A separate penalty for failing to furnish correct statements to employees is applied the same way and with the same amounts, in addition to the filing penalty.

Penalty exceptions. No penalty applies where the failure was due to reasonable cause and not willful neglect, and inconsequential errors are excused, but errors in a TIN, a payee surname or any money amount are never inconsequential. A de minimis rule excuses the penalty on the greater of 10 returns or one-half of 1% of the returns required if the forms were filed on time and corrected by August 1.

Where states differ. Federal Form W-2 is the same everywhere, but states add their own filing duties, covered in boxes 15 through 20. Two labelled examples from official state pages: the Minnesota Department of Revenue says employers actively registered for Minnesota withholding must send it Form W-2 information by January 31 each year, must file electronically if they have more than 10 forms in total (W-2s plus 1099s), and may be assessed a $50 penalty for each W-2 not provided when required. The Pennsylvania Department of Revenue says the Annual Withholding Reconciliation (REV-1667) is due by January 31 and copies of the W-2 must be filed electronically with it. Check your own state agency.

Questions employers ask. Do we file a W-2 for a part-time employee paid under $2,000? Yes, if any income, Social Security or Medicare tax was withheld. Do we need a W-2 for a contractor? No, a statutory employee aside; contractors are reported on Form 1099.

Recordkeeping. Keep a copy of Form W-3 and each Copy A for at least 4 years, and keep reconciliation information in case the IRS or SSA asks. Confirm specifics with the IRS, the SSA, your state agency or a qualified professional.

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