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



May 17: Individuals – Form 1040; Estates and Trusts – Form 1041; FBAR – FinCen Form 114



May 17: Exempt Organizations – Forms 990



August 2: Employee Benefit Plans – Forms 5500

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August 2 – Form 941 (2021 Q2)


August 2 – Form 5500, 5500-EZ


August 2 – Form 720 (2021 Q2), 730 (Jun. 2021), 2290 (Jun. 2021)


August 10 – Form 4070 (Jul. 2021)


August 10 – Form 941 (2020 Q2)


August 31 – Form 730 (Jul. 2021), Form 2290 (Jul. 2021)

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Relevant Tax Management Portfolios

Portfolio 530-4th

Depreciation: General Concepts; Non-ACRS Rules

Depreciation: General Concepts; Non-ACRS Rules introduces the reader to basic concepts of depreciation.

Portfolio 531

Depreciation: MACRS and ACRS

This Portfolio examines the depreciation deduction under the modified accelerated cost recovery system (MACRS) and the original accelerated cost recovery system (ACRS) of §168.

Portfolio 532-2nd

First-Year Expensing and Additional Depreciation

This Portfolio provides a basic reference tool for determining the first-year expensing and additional depreciation deductions available for selected properties.

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Stay up to date, save time, and ensure tax compliance

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