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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June 1 – Form 730 (Apr. 2021), Form 2290 (Apr. 2021)


June 1 – Forms 5498, 5498-ESA, 5498-QA, 5498-SA


June 10 – Form 4070 (May 2021)


June 15 – Form 1040/1040-SR, 4868


June 15 – Form 1040-ES (2021 #2)


June 15 – Form 1120-W (2021 #2)


June 30 – Form 730 (May 2021), 2290 (May 2021)

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Relevant Tax Management Portfolios

Portfolio 520-2nd

Entertainment, Meals, Gifts and Lodging – Deduction and Recordkeeping Requirements

This Portfolio explains the rules for deducting business entertainment, gift, and meal costs and for excluding from an employee’s income meals and lodging provided by the employer.

Portfolio 517-3rd

Educational Expenses and Credits

Bloomberg Tax Portfolio, Educational Expenses and Credits, No. 517, addresses the income tax treatment of expenses for postsecondary education.

Portfolio 505-4th

Trade or Business Expenses and For-Profit Activity Deductions

This Portfolio analyzes the deductions allowable for taxpayers carrying on a trade or business or a for-profit activity.

Related Subscriber Resources

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