Due Dates

Due Dates

All due dates assume that the date falls on a business day. If the due date falls on a holiday or weekend, the due date will be the next business day.

All due dates assume that the date falls on a business day. If the due date falls on a holiday or weekend, the due date will be the next business day.

Key Dates in October 2026

10 Employees who work for tips October 10, 2026 Employees who work for tips – If you received $20 or more in tips during the previous month, report them to your employer. You can use Form 4070 Employee’s Report of Tips to Employer. Read more

15 12:00 am: Corporations 12:00 am October 15, 2026 Corporations – File Form 1120 or 1120-A and pay any tax due. This due date applies only if you timely requested an automatic 6-month extension. Otherwise, see April 15. Read more, 12:00 am: Employers 12:00 am October 15, 2026 Employers – Nonpayroll Withholding. If the monthly deposit rule applies, deposit the tax for payments in September. Read more, 12:00 am: Employers 12:00 am October 15, 2026 Employers – Social Security, Medicare, and withheld income tax. If the monthly deposit rule applies, deposit the tax for payments in September. Read more, 12:00 am: Individuals 12:00 am October 15, 2026 Individuals – If you have an automatic 6-month extension to file your income tax return, file Form 1040, 1040A, 1040EZ, FBAR Form 114, or 709 and pay any tax, interest, and penalties due Read more

31 12:00 am: Employers 12:00 am October 31, 2026 Employers – Social Security, Medicare, and withheld income tax. File form 941 for the third quarter of the current year. Deposit any undeposited tax. (If your tax liability is less than $2,500, you can pay it in full with a timely filed return.) If you deposited the tax for the quarter in full and on time, you have until November 10 to file the return. Read more, 12:00 am: Employers 12:00 am October 31, 2026 Employers – Federal Unemployment Tax. Deposit the tax owed through September if more than $500. Read more, 12:00 am: Employers 12:00 am October 31, 2026 Employers – Income Tax Withholding. Ask employees whose withholding allowances will be different in the next calendar year to fill out a new Form W-4. Read more