31 January following the calendar year.

Form W-2 — Employee Wage Statement

Annual statement of wages and taxes withheld for each W-2 employee. Must be sent to employees AND filed with the Social Security Administration by 31 January following the calendar year.

Who this applies to

  • All US employers with W-2 employees
  • Including S-corp owner-employees who took W-2 wages

What to file

Form W-2 for each employee showing wages, federal income tax withheld, FICA withheld, and various supplemental items (401k contributions, HSA, dependent care, etc.).

How to file

E-file via Business Services Online (BSO) at SSA.gov. Most payroll software files automatically.

Payment due

No payment with W-2 — payroll taxes were paid throughout the year via 941 deposits.

Penalties for missing this deadline

Tier-based penalties for late W-2: $60 per form (within 30 days), $120 (30 days – 1 August), $310 (after), $630 (intentional). Doubled for failures to both employee and SSA.

Filing checklist

  • Reconcile annual payroll totals to 941s filed
  • Include health insurance premiums in Box 12 (DD)
  • Mark S-corp owner-employee health insurance in Box 14
  • Send W-2 to each employee by 31 January
  • File with SSA by 31 January

Common mistakes to avoid

  • Missing the 31 January deadline (used to be later, brought forward in 2016)
  • Not including S-corp shareholder health insurance correctly
  • Forgetting Box 12 codes for various benefits
  • Misalignment between Box 1 (federal wages) and Box 3/5 (FICA wages) without explanation

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