Important 2025 IRS deadlines for your business

January 15th – 4th quarter 2024 estimated tax payment deadline.

January 22nd – 2024: Tax season begins.

January 31st – Due date: Employers should send W-2 forms and 1099-NEC/1099-MISC

January 31st – Due date: Certain 1099 forms are due (1099-NEC, 1099-MISC, and 1099-K)

January 31st – Form 941 & 940 for 2024 (file by February 10th if you deposited the tax in full)

February 18th– If you claimed a tax withholding exemption in 2024 and want to continue it, complete a new Form W-4 and submit it to your employer.

March 17th – Taxes due for partnerships, multi-member LLCs, and S-Corporations.

April 15th – Tax Day

April 15th – Deadline to file form 4868 for extension

April 15th – Taxes due for C-Corporations

April 15th – 2024 IRA and HSA contribution deadline

April 15th – 1st quarter 2025 estimated tax payment deadline.

April 30th – 1st quarter 2025 form 941 deadline.

June 16th – 2nd quarter 2025 estimated tax payment deadline.

July 31st – 2nd quarter 2025 form 941 deadline.

September 15th – 3rd quarter 2025 estimated tax payment deadline.

September 15th – 2024 filing extension deadline for S-Corp and partnership returns.

October 15th – 2024 filing extension deadline for trust, C-Corp, and individual returns.

October 31st – 3rd quarter 2025 form 941 deadline.

December 31st – Last day to donate to a charitable organization.

Jan 15th, 2025 – 4th quarter 2025 estimated tax payment deadline.

January 31st, 2025 – Form 941 for 4th quarter of 2025