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Form 941 Quarterly Payroll Tax: Filing Guide for Employers

If your business has employees — including yourself as an S-Corp shareholder-employee — you are required to file Form 941 every quarter. This form reports the income taxes, Social Security tax, and Medicare tax you withheld from employees' paychecks, plus the employer's share of FICA taxes. Missing a 941 deadline is one of the most common (and costly) payroll mistakes small businesses make.

What Does Form 941 Report?

Form 941, Employer's Quarterly Federal Tax Return, reports three categories of payroll taxes to the IRS each quarter:

• Federal income tax withheld from employees' wages
• Social Security tax — 6.2% withheld from employees plus 6.2% employer match (12.4% total), on wages up to the Social Security wage base ($176,100 for 2026)
• Medicare tax — 1.45% withheld from employees plus 1.45% employer match (2.9% total), with an additional 0.9% employee-only surtax on wages exceeding $200,000

The form reconciles the total taxes owed for the quarter against the deposits you have already made through the Electronic Federal Tax Payment System (EFTPS). If you deposited on time, the amount on Line 14 (balance due) should be zero or very small.

Form 941 Due Dates

Form 941 is filed four times per year, once for each calendar quarter. The due dates are:

If a due date falls on a weekend or federal holiday, the deadline moves to the next business day. There is no extension available for Form 941 — it must be filed by the due date every quarter.

Who Must File Form 941?

Any employer who pays wages to employees must file Form 941, including:

• S-Corp shareholder-employees — S-Corp owners who work in the business must pay themselves a reasonable salary. The corporation must withhold taxes and file 941 quarterly. For details on S-Corp filing requirements, see our S-Corp tax deadlines guide.
• C-Corps with employees — All C-Corporations with W-2 employees must file.
• LLCs and partnerships with W-2 employees — If your LLC or partnership hires employees (not just independent contractors), Form 941 is required.
• Sole proprietors with employees — Even sole proprietors must file 941 if they have hired staff on payroll.

Employers who consistently have $1,000 or less in annual payroll tax liability may be eligible to file Form 944 (annual) instead of quarterly 941 returns. The IRS must notify you that you qualify — you cannot switch on your own.

Payroll Tax Deposit Schedules

Filing Form 941 is separate from depositing the taxes. The IRS requires payroll tax deposits on a schedule based on the total tax liability you reported in a lookback period:

• Monthly depositors — If your total payroll tax liability during the lookback period was $50,000 or less, deposit by the 15th of the following month.
• Semi-weekly depositors — If your liability exceeded $50,000, you deposit within 3 business days of each payday (Wednesday/Thursday paydays deposit by the following Wednesday; Friday/Saturday/Sunday/Monday/Tuesday paydays deposit by the following Friday).
• Next-day deposit rule — If you accumulate $100,000 or more in payroll taxes on any single day, you must deposit by the next business day.

All deposits must be made electronically through EFTPS. Paper coupons are no longer accepted.

S-Corp Shareholders and Form 941

This is a common point of confusion. If you are the sole shareholder of an S-Corp and you work in the business, you are both the employer and the employee. Your S-Corp must pay you a reasonable salary, withhold federal income tax, Social Security, and Medicare, and file Form 941 every quarter reporting those withholdings. You will also receive a W-2 at year-end. Distributions above your salary are not subject to FICA, but the salary itself must be reported on 941. For more on W-2 requirements and deadlines, see our W-2 vs 1099 deadlines guide.

Form 940: The Annual FUTA Return

Do not confuse Form 941 with Form 940. Form 940 reports the Federal Unemployment Tax Act (FUTA) tax and is filed annually, due January 31. FUTA is an employer-only tax (6.0% on the first $7,000 of each employee's wages, typically reduced to 0.6% after the state unemployment tax credit). Form 941 covers income tax withholding and FICA; Form 940 covers FUTA. Both are required if you have employees.

Penalties for Late Filing and Late Deposits

The IRS takes payroll tax compliance seriously. Penalties include:

• Late filing penalty: 5% of unpaid tax for each month (or partial month) the return is late, up to 25%.
• Late deposit penalties: 2% (1-5 days late), 5% (6-15 days late), 10% (16+ days late or within 10 days of first IRS notice), 15% (10+ days after first IRS notice or the day a demand letter is issued).
• Trust fund recovery penalty: If a responsible person willfully fails to collect, account for, or deposit payroll taxes, the IRS can personally assess a penalty equal to 100% of the unpaid trust fund taxes. This is one of the few business tax penalties that can pierce the corporate veil.

For a comprehensive breakdown of IRS penalties, read our IRS late filing penalties guide.