Form 941 is the quarterly tax return employers use to report federal income tax withheld, Social Security tax, and Medicare tax. It is due on the last day of the month following each quarter. You report what you owe and reconcile it against deposits already made.
- Filed four times per year by most employers with employees
- Reports federal income tax withheld + employer and employee FICA
- Late filing penalty: 5% per month, up to 25%
What Is Form 941?
Form 941, Employer's Quarterly Federal Tax Return, is the form businesses use to report employment taxes to the IRS every quarter. It covers three types of tax:
The form reconciles the total taxes owed for the quarter against the deposits you have already made. Any difference results in either a balance due or an overpayment credit.
Who Must File Form 941?
Most employers with employees must file Form 941 quarterly. This includes businesses of all sizes, nonprofit organizations, and government entities. The only exceptions are:
| Exception | Alternative Form |
|---|---|
| Annual tax liability of $1,000 or less | Form 944 (annual, IRS must approve) |
| Farm employers | Form 943 (annual) |
| Household employers | Schedule H (with Form 1040) |
| Seasonal employers | Still file 941, but check the seasonal box |
If you have previously filed a 941, you must continue filing every quarter — even if you paid no wages. To stop filing, you must either check the “final return” box or submit a written request to the IRS.
Quarterly Due Dates
| Quarter | Period Covered | Form 941 Due Date |
|---|---|---|
| Q1 | January 1 – March 31 | April 30 |
| Q2 | April 1 – June 30 | July 31 |
| Q3 | July 1 – September 30 | October 31 |
| Q4 | October 1 – December 31 | January 31 (of next year) |
If the due date falls on a weekend or legal holiday, the return is due on the next business day. If you made all deposits on time and in full, you get an additional 10 days to file.
Calculating and Making Deposits
Federal payroll tax deposits must be made via EFTPS (Electronic Federal Tax Payment System). The deposit amount includes:
Calculate Federal Income Tax Withheld
Calculate FICA Taxes
Deposit via EFTPS
Semi-Weekly vs Monthly Depositor
The IRS assigns your deposit schedule based on your lookback period — the total tax liability reported during a four-quarter period ending June 30 of the prior year.
| Schedule | Lookback Liability | Deposit Rule |
|---|---|---|
| Monthly | $50,000 or less | Deposit by the 15th of the following month |
| Semi-weekly | More than $50,000 | Wednesday/Friday rule based on payday |
| Next-day | $100,000+ in a single day | Deposit by the next business day |
Semi-weekly depositors follow this schedule: if payday falls on Wednesday, Thursday, or Friday, deposit by the following Wednesday. If payday falls on Saturday, Sunday, Monday, or Tuesday, deposit by the following Friday.
Penalties
| Violation | Penalty |
|---|---|
| Late filing | 5% of unpaid tax per month, up to 25% |
| Late deposit (1-5 days) | 2% of undeposited amount |
| Late deposit (6-15 days) | 5% of undeposited amount |
| Late deposit (16+ days) | 10% of undeposited amount |
| Late deposit (10+ days after first IRS notice) | 15% of undeposited amount |
| Failure to file electronically (when required) | May result in penalties |
Frequently Asked Questions
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Related Forms
Form W-4
Complete guide to the W-4 form — how employees claim withholding allowances, when to update it, and how employers process it for federal income tax withholding.
Form W-2
Everything employers need to know about the W-2 form — filing deadlines, box-by-box instructions, corrections, and electronic filing requirements.
Form W-9
Guide to the W-9 form — when to request it from contractors, how to verify TINs, and how it connects to 1099 reporting requirements.