Form W-2
Last reviewed 2026-05-11 by Asad Ali, Founder & CEO
Annual statement from employers showing employee wages and taxes withheld.
Form W-2 (Wage and Tax Statement) reports an employee's annual wages and the taxes withheld during the year — federal income tax (Box 2), Social Security wages and tax (Boxes 3–4), Medicare wages and tax (Boxes 5–6), state and local taxes (Boxes 15–19), and various coded items in Box 12 (401(k) contributions code D, employer health coverage code DD, HSA contributions code W, and others). Employers must furnish W-2s to employees and file Copy A with the Social Security Administration (SSA) by January 31. Most employers e-file through SSA Business Services Online; paper filing requires Form W-3 as the transmittal. The W-2 captures earnings differently from gross wages: Box 1 (federal taxable wages) excludes pre-tax 401(k), Section 125 cafeteria benefits, and HSA deductions, while Boxes 3 and 5 add some of those back. Refer to IRS Publication 15 (Circular E) and the General Instructions for Forms W-2/W-3 for current filing rules.
Example
A small business pays an employee $65,000 in gross wages for the year. The employee contributes $4,000 to a 401(k) (pre-tax) and $2,400 to Section 125 health premiums. Box 1 (federal taxable wages) = $65,000 − $4,000 − $2,400 = $58,600. Box 3 (Social Security wages) = $65,000 − $2,400 = $62,600 (401(k) is NOT excluded from FICA wages). Box 5 (Medicare wages) = $62,600. Box 12 codes: D $4,000 (401(k)), DD employer health coverage amount. The employer files Copy A electronically with the SSA by January 31 along with Form W-3.
Why It Matters for Your Business
Accurate W-2s ensure your employees can file correct personal tax returns, prevent IRS B-notices, and avoid late-filing penalties that can range from $60 to $660 per form for the business.
Practical Tips
- •File electronically through SSA Business Services Online — required if you issue 10 or more information returns of any type (combined W-2 and 1099 threshold per IRS final rule effective 2024)
- •Reconcile Form 941 quarterly totals to your year-end W-2/W-3 totals — mismatches trigger IRS CP-2100 notices and SSA correction requests
- •Distribute W-2s electronically when employees consent in writing — it speeds delivery and creates an audit trail, but you must keep proof of consent
- •Issue corrected W-2c forms promptly when errors are found — backdated or batched corrections raise audit flags and can confuse employee filings
Common Questions About Form W-2
What is an example of form w-2?
A small business pays an employee $65,000 in gross wages for the year. The employee contributes $4,000 to a 401(k) (pre-tax) and $2,400 to Section 125 health premiums. Box 1 (federal taxable wages) = $65,000 − $4,000 − $2,400 = $58,600. Box 3 (Social Security wages) = $65,000 − $2,400 = $62,600 (401(k) is NOT excluded from FICA wages). Box 5 (Medicare wages) = $62,600. Box 12 codes: D $4,000 (401(k)), DD employer health coverage amount. The employer files Copy A electronically with the SSA by January 31 along with Form W-3.
Why does form w-2 matter for my business?
Accurate W-2s ensure your employees can file correct personal tax returns, prevent IRS B-notices, and avoid late-filing penalties that can range from $60 to $660 per form for the business.
How does FiscalInsights help with form w-2?
FiscalInsights tracks form w-2 automatically as part of its AI bookkeeping workflow. Connect your bank accounts and the platform handles categorization, reconciliation, and reporting without manual entry.
Related Terms
More Taxes Terms
Tax Deduction
An expense that reduces taxable income.
Estimated Taxes
Quarterly tax payments made by self-employed individuals and businesses.
Form 1099
IRS forms reporting various types of income other than wages.
Payroll Tax
Taxes withheld from employee wages for Social Security and Medicare, plus employer-side employment taxes.
FICA
Federal Insurance Contributions Act taxes that fund Social Security and Medicare.
Related Taxes Guides
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