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Essential December Deadlines for Your Business

As December rolls in, it's critical for businesses to stay ahead of important tax obligations. Whether you're handling corporate estimated tax payments or ensuring timely payroll tax deposits, staying on track with these deadlines is essential to avoid penalties and maintain smooth operations. Let’s walk through the must-know dates and tasks as the year ends.

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December 15 - Corporations

If your company operates on a calendar year basis, December 15 is the due date for the fourth installment of your estimated tax for 2025. Prompt payment ensures you remain compliant and avoid interest charges.

December 15 - Social Security, Medicare, and Withheld Income Tax

For employers under the monthly deposit schedule, December 15 marks the deadline to deposit Social Security, Medicare, and withheld income tax for November 2025. This date also applies to nonpayroll withholding deposits if the monthly rule is applicable.

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December 31 - Year-End Considerations

The last day of the year can pose challenges if you leave significant actions incomplete. Since not all institutions will be open on December 31, planning ahead is crucial. Address tasks as early as possible to steer clear of unexpected delays.

Weekends & Holidays:
If any due date lands on a Saturday, Sunday, or legal holiday, the deadline extends to the next business day

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Disaster Area Extensions:

If your area is declared a disaster zone, you may qualify for deadline extensions. Stay informed by checking the FEMA website and the IRS’s portal for tax relief updates.

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