IRS Form 941

Form 941: Employer's Quarterly Federal Tax Return

A plain-English guide to IRS Form 941 — what it's for, who files it, when it's due, and how to complete it.

Form number941
Official nameEmployer's Quarterly Federal Tax Return
CategoryPayroll
Typically dueEnd of month after each quarter
Official IRS Form 941 (PDF)

What is Form 941?

Form 941 is how employers report the income tax, Social Security and Medicare they withheld from employees' paychecks each quarter, plus the employer's share of payroll taxes.

The 941 reconciles, each quarter, what an employer withheld from paychecks (income tax plus the employee share of Social Security and Medicare) against what it actually deposited, and adds the employer's matching share. It's filed four times a year, with the deposits themselves due far more often.

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Who files it

Most employers with W-2 employees file it every quarter.

When it's due

Form 941 is generally due End of month after each quarter. Deadlines can move for weekends and holidays, so confirm the exact date for the current year on IRS.gov.

Key lines and parts

Here's what you'll actually fill in on Form 941:

  • Number of employees and wages
  • Federal income tax withheld
  • Social Security and Medicare taxes
  • Total deposits and balance due

How to file

File by the last day of the month following each quarter (April, July, October, January) and deposit the taxes on the required schedule.

Common mistakes & penalties

Payroll-tax money is considered held in trust for employees, and the IRS pursues unpaid amounts aggressively — the Trust Fund Recovery Penalty can reach the business owners personally. Never "borrow" from withheld payroll taxes to cover cash flow; it's one of the costliest mistakes a small business can make.
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Frequently asked questions

What is IRS Form 941?

Form 941 is how employers report the income tax, Social Security and Medicare they withheld from employees' paychecks each quarter, plus the employer's share of payroll taxes.

Who has to file Form 941?

Most employers with W-2 employees file it every quarter.

When is Form 941 due?

Form 941 is generally due End of month after each quarter. Always confirm the current year's date on IRS.gov, since deadlines shift for weekends and holidays.

What's the most common mistake with Form 941?

Payroll-tax money is considered held in trust for employees, and the IRS pursues unpaid amounts aggressively — the Trust Fund Recovery Penalty can reach the business owners personally. Never "borrow" from withheld payroll taxes to cover cash flow; it's one of the costliest mistakes a small business can make.