Form 941, also known as the employer’s quarterly federal tax return, is used to report federal income tax withheld from employees’ paychecks, along with Social Security and Medicare taxes. It also reports the employer share of Federal Insurance Contributions Act (FICA) taxes and certain payroll adjustments, such as sick pay or group-term life insurance. Most employers must file Form 941 every quarter to stay current with Internal Revenue Service (IRS) requirements.

The form captures payroll tax activity for the quarter, including total wages paid and taxes withheld. When completing Form 941, employers must provide their employer identification number (EIN), employee count and deposit schedule. The form can be filed electronically or by mail. Payments submitted by check or money order require Form 941-V.

Filing deadlines fall on the last day of the month following each quarter. If that due date falls on a weekend or federal holiday, it moves to the next business day. Corrections to a previously filed return must be made using Form 941-X.

Form 941 Filing Deadlines

Form 941 is due four times each year, once per quarter, and must be filed with the IRS after the end of each calendar quarter. Meeting these deadlines helps employers stay compliant and avoid penalties tied to late filings or missed payments.

The filing schedule is based on the last day of the month following the end of the quarter:

• First quarter (January through March): Due April 30

• Second quarter (April through June): Due July 31

• Third quarter (July through September): Due October 31

• Fourth quarter (October through December): Due January 31

If a filing deadline lands on a weekend or federal holiday, it’s pushed to the next business day. Employers who deposit all payroll taxes on time and in full may qualify for up to 10 additional calendar days to file.

Information Reported on Form 941

Form 941 collects specific payroll and tax data from employers each quarter. Each section helps confirm the right amount of tax is calculated, withheld and submitted. Totals should match payroll records for the filing period.

Employers must report:

• Total wages paid subject to federal income tax

• Taxable Social Security and Medicare wages and tips

• Federal income tax withheld from employees

• The employer and employee share of Social Security and Medicare taxes

• Adjustments for sick pay, tips and group-term life insurance

• Any applicable tax credits or overpayments

The form also shows the total tax liability for the quarter and how much has already been deposited. Any remaining balance due or overpayment is calculated from these amounts. Reporting errors or changes from a prior quarter aren’t corrected here and instead must be submitted using Form 941-X.

Filing Requirements for Form 941

Most employers with one or more employees subject to income tax withholding or FICA taxes must file Form 941 each quarter. This applies to businesses of all sizes, including corporations, partnerships and nonprofit organizations.

Certain employers aren’t required to file Form 941 if they meet specific IRS exceptions. These include:

• Seasonal employers who don’t pay wages in every quarter

• Employers of household employees who file Schedule H with Form 1040

• Agricultural employers who report wages using Form 943

• Small employers approved by the IRS to file Form 944 annually instead of quarterly

Filing obligations depend on whether the business is required to withhold and deposit federal payroll taxes from employee wages. Employers must have an active EIN to file and report under the correct business entity.

Filing Form 941

Form 941 can be filed either electronically or by mail. Electronic filing is available through IRS-approved e-file providers or payroll software. Many employers use tax professionals or third-party payroll services to handle the filing on their behalf. E-filing is generally faster and reduces the chance of manual errors.

If filing by mail, the IRS provides different mailing addresses depending on the business location and whether a payment is included. Employers who pay by check must include Form 941-V, the payment voucher. Using the correct version of the form for the current quarter and report is essential to avoid penalties or notices.

The IRS requires all payroll tax payments be submitted using the Electronic Federal Tax Payment System (EFTPS), rather than mailed with the return. Corrections to previously filed forms must be submitted separately using Form 941-X.