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
Relevant Tax Management Portfolios
Portfolio 1420-3rd
Limitations on States’ Jurisdiction to Impose Sales and Use Taxes
This Portfolio explores the constitutional limitations imposed by the Commerce Clause, Due Process Clause, Equal Protection Clause, and First Amendment.
Portfolio 1410
Limitations on States’ Jurisdiction to Impose Net Income Based Taxes
This Portfolio examines the identification of those jurisdictions in which a corporation’s activities may be subject to a tax.
Portfolio 1430
Jurisdictional Limitations: Attributional Nexus
This Portfolio focuses on the expansion of traditional nexus principles by state tax administrators in their continued quest for revenue.
Related Subscriber Resources
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PRACTICE GUIDE
Multistate: Nexus and Residency
CLIENT LETTER
Sales Tax Nexus
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