Upcoming Tax Deadlines

Staying ahead of important tax deadlines helps ensure smooth operations and avoid unnecessary penalties. Each month, we highlight key due dates so you know exactly what’s coming up and can plan accordingly. Be sure to review the items below and reach out if you have any questions or need assistance with compliance.

March

Day

2 Businesses– File information returns (for example, certain Forms 1099) for certain payments you made during 2025. These payments are described under All businesses under February 2, earlier. However, Form 1099-NEC reporting nonemployee compensation must be filed by February 2. There are different forms for different types of payments. Use a separate Form 1096 to summarize and transmit the forms for each type of payment. See the General Instructions for Certain Information Returns for information on what payments are covered, how much the payment must be before a return is required, which form to use, and extensions of time to file. If you file Forms 1097, 1098, 1099 (except a Form 1099-NEC reporting nonemployee compensation), 3921, 3922, or W-2G electronically, your due date for filing them with the IRS will be extended to March 31. The due date for giving the recipient these forms generally remains February 2.

2 Farmers and Fishermen– File your 2025 income tax return (Form 1040 or Form 1040-SR) and pay all tax due. However, you have until April 15 to file if you paid your 2025 estimated tax by January 15, 2026.

10 Employees Who Work for Tips– If you received $20 or more in tips during February, report them to your employer. See Pub. 531 for more information on how to report tips to your employer.

16 S Corporation Election– File Form 2553 to elect to be treated as an S corporation be-ginning with calendar year 2026. If Form 2553 is filed late, S corporation treatment will begin with calendar year 2027.

16 S Corporations– File a 2025 calendar year income tax return (Form 1120-S) and pay any tax due. Provide each shareholder with a copy of their Schedule K-1 (Form 1120-S), Shareholder’s Share of Income, Deductions, Credits, etc., or substitute Schedule K-1 (Form 1120-S), and, if applicable, Schedule K-3 (Form 1120-S), Shareholder’s Share of Income, Deductions, Credits, etc.—International, or substitute Schedule K-3 (Form 1120-S). To request an automatic 6-month extension of time to file the return, file Form 7004 and deposit what you estimate you owe in tax. Then, file the return; pay any tax, interest, and penal-ties due; and provide each shareholder with a copy of their Schedule K-1 (Form 1120-S) and, if applicable, Schedule K-3 (Form 1120-S) by September 15.

16 Partnerships– File a 2025 calendar year return (Form 1065). Provide each partner with a copy of their Schedule K-1 (Form 1065), Partner’s Share of Income, Deductions, Credits, etc., or substitute Schedule K-1 (Form 1065), and, if applicable, Schedule K-3 (Form 1065), Partner’s Share of Income, Deductions, Credits, etc.—International, or substitute Schedule K-3 (Form 1065). To request an automatic 6-month extension of time to file the return, file Form 7004. Then, file the return and provide each partner with a copy of their final or amended (if required) Schedule K-1 (Form 1065) and, if applicable, Schedule K-3 (Form 1065) by September 15.

31 Electronic filing of Forms 1097, 1098, 1099, 3921, 3922, and W-2G– File Forms 1097, 1098, 1099 (except a Form 1099-NEC reporting nonemployee compensation), 3921, 3922, and W-2G with the IRS. This due date applies only if you file electronically. Otherwise, see All businesses under March 2, earlier. The due date for giving the recipient these forms generally remains February 2. For information about filing Forms 1097, 1098, 1099, 3921, 3922, and W-2G electronically, see Pub. 1220.

April

Day

10 Employees Who Work for Tips– If you received $20 or more in tips during March, report them to your employer. See Pub. 531 for more information on how to report tips to your employer.

15 Corporations– File a 2025 calendar year income tax return (Form 1120) and pay any tax due. If you want an automatic 6-month extension of time to file the return, file Form 7004 and deposit what you estimate you owe in taxes. Deposit the first installment of estimated in-come tax for 2026.

15 Household Employers– If you paid cash wages of $2,800 or more in 2025 to a house-hold employee, you must file Schedule H (Form 1040), Household Employment Taxes. If you’re required to file a federal income tax return (Form 1040 or Form 1040-SR), file Schedule H (Form 1040) with the return and report any household employment taxes. Re-port any federal unemployment (FUTA) tax on Schedule H (Form 1040) if you paid total cash wages of $1,000 or more in any calendar quarter of 2024 or 2025 to household employees. Also, report any income tax you withheld for your household employees. For more information, see Pub. 926.

15 Individuals– File a 2025 Form 1040 or Form 1040-SR and pay any tax due. If you want an automatic 6-month extension of time to file the return, file Form 4868 and pay what you estimate you owe in tax to avoid penalties and interest. For more information, see Form 4868. Then, file Form 1040 or Form 1040-SR by October 15. If you’re not paying your 2026 income tax through withholding (or won’t pay in enough tax during the year that way), pay the first installment of your 2026 estimated tax. See Form 1040-ES for more information, including how to make estimated tax payments electronically. Also, see Pub. 505.

April

Day

11 Employees Who Work for Tips– If you received $20 or more in tips during April, report them to your employer. See Pub. 531 for more information on how to report tips to your employer.