Critical January 2026 Tax Deadlines for Businesses

As January 2026 approaches, it is crucial for businesses, employers, farmers, and fishermen to be aware of significant tax deadlines. Early preparation not only ensures compliance but also helps in avoiding penalties that can impact your financial planning.

January 15 - Employer’s Monthly Tax Obligations -

Employers adhering to the monthly deposit rules must submit their Social Security, Medicare, and withheld income taxes for December 2025 by January 15. Additionally, nonpayroll withholding deposits are due on this date if they fall under the same regulations. Remember, employment tax deposits are required to be filed electronically, with exceptions available for employers whose total deposit liabilities are under $2,500 per return period, permitting quarterly or annual submissions.

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January 15 - Obligations for Farmers and Fishermen -

Utilizing Form 1040-ES, farmers and fishermen are expected to pay their estimated taxes for 2025 by this date. To avoid penalties, if you miss this deadline, ensure your 2025 income tax return using Form 1040 or Form 1040-SR is filed and paid by March 2, 2026. Alternatively, the April 15 deadline applies if the payment is made by January 15.

Considerations for Weekends & Holidays:

In instances where deadlines fall on weekends or legal holidays, they are automatically moved to the next business day that is not a holiday itself.

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Extensions for Disaster Areas:

Special extensions apply to areas declared as disaster zones. For the latest information on designated disaster zones and related filing extensions, visit the following resources:

FEMA: FEMA Disaster Declarations
IRS: IRS Tax Relief in Disaster Situations

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