Learning Center
We keep you up to date on the latest tax changes and news in the industry.

December 2025 Key Tax Deadlines for Businesses

December is a pivotal month for businesses, marking essential tax deadlines. Notably, it involves corporate estimated tax payments and monthly payroll tax obligations. It's also crucial for businesses to finalize year-end tasks well ahead of the December 31 closures.

December 15 - Corporate Tax Responsibilities

The fourth and final installment of estimated tax for corporations with a calendar year ending in 2025 is due on this date. Timely payments ensure compliance and avoid penalties.

Image 1

December 15 - Employer Payroll Duties

Employers bound by the monthly deposit rule must submit their Social Security, Medicare, and withheld income tax deposits for November 2025 by this date. The same deadline applies to nonpayroll withholding deposits. Ensuring these are handled promptly can greatly streamline year-end procedures.

December 31 - End-of-Year Considerations

December 31 marks the final opportunity to execute any financial actions. However, due to potential closures of financial institutions, it's prudent to advance any necessary plans before this date. This proactive approach helps maintain continuity and mitigate last-minute issues.

Image 2

Weekend & Holiday Adjustments:

If a due date lands on a weekend or legal holiday, it automatically shifts to the next business day. Planning around these contingencies ensures your business remains compliant without last-minute stress.

Extensions for Disaster Areas:

Should your area be classified as a disaster zone, filing deadlines will be extended. It's beneficial to stay informed about these designations via FEMA and IRS resources:

Image 3

FEMA: Disaster Declarations
IRS: Tax Relief in Disaster Situations

Share this article...

Want tax & accounting tips and insights?

Sign up for our newsletter.

I confirm this is a service inquiry and not an advertising message or solicitation. By clicking “Submit”, I acknowledge and agree to the creation of an account and to the and .

Social Media

Location

2100 Westshore Drive
Cumming, Georgia 30041
Get Balanced CPA We love Chat!
Please feel free to use our Ai powered chat assistant or click on the Contact button below to contact us.
Please fill out the form and our team will get back to you shortly The form was sent successfully