Key Business Tax Deadlines in November 2025

As November ramps up with the bustle of year-end tasks and holiday plans, it's crucial to stay on top of your business tax responsibilities. Critical deadlines like Form 941 and associated tax deposits require your attention this month.

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November 10 - Social Security, Medicare, and Withheld Income Tax

Submit Form 941 for the third quarter of 2025 by this date if you've deposited the tax due for the quarter completely and on time.

November 17 - Social Security, Medicare, and Withheld Income Tax

For employers bound by monthly deposit rules, ensure your payment of Social Security, Medicare, and withheld income tax for October 2025 is done by November 17. Similarly, the nonpayroll withholding deposit deadline for October 2025 is also due on this date if the monthly deposit stipulation applies. 

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Weekends & Holidays:

Should any deadline fall on a Saturday, Sunday, or recognized legal holiday, your due date will automatically extend to the next business day that is free of these conditions. 

Disaster Area Extensions:

Be aware that in the event your area is designated as a disaster zone, deadline extensions will apply. For up-to-date information on disaster area designations and new filing deadlines, consult the following resources:

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