Key December 2025 Tax Deadlines for Businesses

As December unfolds, it brings crucial tax deadlines that businesses must keep an eye on, particularly those pertaining to corporate estimated tax payments and payroll tax deposits. This is an ideal time to wrap up year-end financial actions before businesses close for December 31.

December 15 - Corporate Estimated Tax Payments
If your corporation follows the calendar year, the fourth and final installment of estimated taxes for 2025 is due by this date. Ensuring timely filing not only keeps you compliant but also aids in strategic year-end planning.

December 15 - Payroll Tax Deposits
For employers, if the monthly deposit rules apply to you, December 15 is the deadline to deposit Social Security, Medicare, and withheld income taxes for November 2025. This includes any nonpayroll withholding that must also align with monthly deposit rules.

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Last Call: December 31
December 31 marks the final curtain for executing financial maneuvers that impact your annual tax obligations. Because some financial institutions may not operate on this day, it's wise to act before December 31 to ensure seamless transactions.

Weekends and Legal Holidays
Should a deadline fall on a weekend or legal holiday, the due date automatically extends to the next working day that isn’t a holiday. Plan ahead to avoid last-minute hassles.

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Disaster Area Extensions
Businesses located in regions designated as disaster areas benefit from extended deadlines. To verify if your area qualifies, visit resources like the FEMA website and the IRS for the latest updates on disaster-related tax relief.

Veritas Planning Advisors stands ready to support you through December’s complexities. Our practice incorporates proactive tax guidance and strategic planning, ensuring our clients' financial foundations are robust, tax-efficient, and poised for sustainable growth.

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