2021 Tax Calendar

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Stay up to date on key 2021 IRS form filing dates

This 2021 tax calendar is a reference document of dates included in the IRS Tax Calendar for Businesses and Self-Employed Individuals. View specific due dates by month for filing tax forms, paying taxes, and other actions required by federal tax law. Bookmark this website to track key 2021 tax deadlines and avoid penalties as well as late fees.

Important 2021 Tax Dates

February 1: Employer – Form W-2; Payors – Form 1099-NEC

March 1: Payors – Form 1099-MISC

March 15: Partnerships, LLCs – Form 1065; S Corporations – Form 1120S

April 12: Form 1040/1040-SR, Form 730 (Jan 2021)

April 15: Corporations – Form 1120; Estates and Trusts – Form 1041; FBAR – FinCen Form 114

May 17: Individuals – Form 1040

May 17: Exempt Organizations – Forms 990

August 2: Employee Benefit Plans – Forms 5500


September 10 – Form 4070 (Aug. 2021)

September 15 – Form 1040-ES (2021 #3)

September 15 – Form 1065, Sched. K-1

September 15 – Form 1120-S, Sched. K-1

September 15 – Form 1120 (Jun. FY)

September 15 – Form 1120-W (2021 #3)

September 30 – Form 730 (Aug. 2021), 2290 (Aug. 2021)

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Income Taxes: Consolidated Returns and Combined Reporting

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