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


May 10 – Form 4070 (Apr. 2021)

May 10 – Form 941 (2021 Q1)

May 17 – Forms 990 (e-File), Form 8868

May 17 – Form 1040/1040-SR, Sched. H, Form 4868

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Relevant Tax Management Portfolios

Portfolio 6080

Section 911 and Other International Tax Rules Relating to U.S. Citizens and Residents

This Portfolio discusses double taxation of U.S. citizens abroad, citizens who expatriate to avoid tax, tax treaties relevant to U.S. citizens and other taxes relevant to U.S. citizens.

Portfolio 930-2nd

CFCs – Sections 959-965 and 1248

This Portfolio describes the rules that apply to the repatriation of the earnings and profits of a CFC under Subpart F of the Internal Revenue Code.

Portfolio 6260

CFCs – Investment of Earnings in United States Property

This portfolio analyzes the U.S. income tax consequences under §956 of the Internal Revenue Code of investment.

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