Essential January 2026 Tax Deadlines for Businesses

As we embark on January 2026, businesses, employers, fishermen, and farmers should mark their calendars for pivotal tax deadlines. Strategic planning is crucial to ensure compliance and prevent penalty charges.

January 15 - Employer’s Monthly Tax Obligations -

For employers subject to monthly deposit requirements, January 15 is the deadline to deposit Social Security, Medicare, and withheld income tax for December 2025. This date also applies to nonpayroll withholdings if the monthly deposit rule is applicable. Remember, employment tax deposits must be made electronically, except for employers with quarterly or annual liabilities under $2,500, who may submit payments with their returns.

Image 2

January 15 - Farmers and Fishermen -

Utilize Form 1040-ES to remit your estimated tax for 2025. While April 15 is the final deadline to file your 2025 income tax return using Form 1040 or 1040-SR, if you miss the January 15 estimated tax payment, filing your 2025 return and settling any tax by March 2, 2026, will help you evade penalty fees.

Weekends & Holidays:

If a mandated due date aligns with a Saturday, Sunday, or recognized holiday, it defers automatically to the next non-holiday business day.

Image 3

Disaster Area Extensions:

Declared disaster areas may benefit from extended deadlines. To verify if your locale qualifies as a disaster area and to find out the extended dates for filing, visit the following portals:
FEMA: https://www.fema.gov/disaster/declarations
IRS: https://www.irs.gov/newsroom/tax-relief-in-disaster-situations

Share this article...

Want our best tax and accounting tips and insights delivered to your inbox?

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 .
Let us take your tax and small business needs off your hands today.