January 31st 

•Form 1099-NEC to recipient & related 1096 

•Form 1099-Misc to recipient

•Form W-2's to employees & related W-3 to IRS

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February 28th

•Form 1096 (related to other 1099s) to IRS (paper filers)

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March 15th

•Forms 1120-S & 1065 due (or extensions)

•Employer retirement match due (unless business tax return extended)

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March 31st 

•Form 1096 (related to other 1099s) to IRS (e-filers)

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April 15th

•Form 1040 due (or extensions)

•Form 1120 due (or extensions)

•1st quarter 2025 estimated tax payments

•2024 IRA/Roth IRA contributions

•2024 Self-employed retirement contributions (unless tax return extended)

•2024 Self-employment 401(k) contributions

(no extension)

•2024 HSA contributions

•2024 529 plan contributions (in some states)

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June 16th

•2nd quarter 2025 estimated tax payments

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August 15th

•Deadline for shareholders and partners to request schedule K-2/K-3 from the applicable S-corporation or partnership

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September 15th

•3rd quarter 2025 estimated tax payments

•Forms 1120-S & 1065 due (extended)

•2023 Employer retirement match due (if business tax return extended)

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October 15th

•Forms 1040 & self-employment retirement contributions (extended)

•Form 1120 due (extended)

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January 15, 2026

•4th quarter 2025 estimated tax payments

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*If a deadline falls on a weekend, the following Monday is typically the alternative deadline.

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*If a deadline falls on a holiday, the following business day is typically the alternative deadline.

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You must rely on your tax professional for due dates, as this is just for informational purposes.

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These are Federal due dates.  Check your state requirements for various state due dates.