Information about Form 1040, U.S. Individual Income Tax Return, including recent updates, related forms and instructions on how to file. Form 1040 is used by citizens or residents of the United States …

Mar 12, 2026 · Employer's Quarterly Federal Tax Return. Employers who withhold income taxes, social security tax, or Medicare tax from employee's paychecks or who must pay the employer's portion of …

2025 Form 1040 Form 1040 (2025)

Jan 8, 2026 · Get step-by-step guidance and resources to help you file a timely, accurate federal income tax return.

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Information about Form 1040-X, Amended U.S. Individual Income Tax Return, including recent updates, related forms and instructions on how to file. Use Form 1040-X to file an amended tax return.

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Pay your taxes. Get your refund status. Find IRS forms and answers to tax questions. We help you understand and meet your federal tax responsibilities.

Jan 6, 2026 · Prepare and file your federal income tax online at no cost to you (if you qualify) using guided tax preparation, at an IRS trusted partner site or using Free File Fillable Forms.

Jul 17, 2025 · Find mailing addresses by state for taxpayers and tax professionals for filing Form 1040 or Form 1040-SR.