Stay Ahead: Key January 2026 Tax Deadlines

As January 2026 approaches, it's important for businesses, employers, and those in the agriculture and fishing sectors to be aware of significant tax deadlines. With a bit of foresight, you can ensure compliance and avoid unnecessary penalties.

January 15 - Employer’s Monthly Deposit Deadline

If you manage payroll, remember that January 15 is critical for submitting December 2025's Social Security, Medicare, and withheld income taxes electronically. Paperless transactions are mandatory unless your total deposit liability for the return period is under $2,500, allowing for quarterly or annual submissions. Image 1

January 15 - Key Date for Farmers and Fishermen

Use Form 1040-ES to pay your estimated taxes for 2025. While the standard tax return (Form 1040 or Form 1040-SR) deadlines extend to April 15, failure to pay the estimated tax by January 15 necessitates filing by March 2, 2026, to avoid penalties.

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Consideration for Weekends & Holidays

Always check if due dates land on weekends or legal holidays; in such cases, deadlines extend to the following business day.

Extensions for Disaster-Affected Areas

Regions declared disaster areas automatically receive filing extensions. For specific extensions and designated areas, keep updated through these sources:
FEMA: https://www.fema.gov/disaster/declarations
IRS: https://www.irs.gov/newsroom/tax-relief-in-disaster-situations

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