Key November 2025 Tax Deadlines for Businesses

As the calendar flips to November, businesses often find themselves juggling multiple responsibilities—from wrapping up fiscal year-end tasks to preparing for the festive season. Amidst this busy schedule, staying on top of your business tax deadlines is crucial to avoid unnecessary penalties or interest. This month, it's important to focus on Form 941 and other vital tax deposits.

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November 10: File Form 941 for Q3 2025

This deadline looms for filing Form 941, provided that you have made full and timely payments for the quarter. It's a crucial checkpoint for Social Security, Medicare, and withheld income taxes.

November 17: Monthly Deposits Due

Employers to whom the monthly deposit rules apply must deposit Social Security, Medicare, and withheld income taxes for October 2025 by this date. This deadline also holds for the nonpayroll withholding deposit, governed by the monthly deposit guidelines.

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Note on Weekends & Holidays:

Should any deadline fall on a Saturday, Sunday, or legal holiday, it is automatically extended to the next business day that isn't a legal holiday.

Extensions for Disaster Areas:

In areas designated as disaster zones, the IRS may extend filing due dates. For the latest information on these extensions, check the following resources:

FEMA: https://www.fema.gov/disaster/declarations
IRS: https://www.irs.gov/newsroom/tax-relief-in-disaster-situations

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