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Key November 2025 Tax Deadlines for Businesses

As the busy last quarter of 2025 unfolds alongside the festive holiday period, it's essential for business owners to keep a close eye on critical tax deadlines. Compliance with these due dates not only ensures smooth operations but also helps avoid unnecessary penalties. Below are the pivotal deadlines for the month of November that every business should be aware of, particularly for those dealing with Form 941 filings and associated tax deposits.

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November 10 - Third Quarter Form 941 Filing

If you completed your tax deposits in full and on time for the third quarter of 2025, remember to file Form 941 by this date. This requirement is crucial for maintaining compliance and preventing any late filing fees.

November 17 - Monthly Depositors

For those complying with monthly deposit rules, November 17 is the critical date for depositing Social Security, Medicare contributions, and withheld income taxes for the prior month of October 2025. Additionally, this deadline applies to any nonpayroll withholding deposits under the same monthly rule.

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Weekend and Holiday Adjustments:

Should any due date coincide with a weekend or a public holiday, the IRS allows an automatic extension to the next accessible business day. This leniency is built into the system to facilitate smoother management of your tax obligations.

Special Consideration for Disaster Areas:

Occasionally, the IRS designates certain regions as disaster areas, which triggers extensions for tax due dates. To verify the designation of any such area and to determine new filing deadlines, please refer to the following sites for authoritative updates:

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

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