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
February 1 – Form 1040/1040-SR
February 1 – Forms 1097, 1098, 1099-MISC, 3921, 3922, W-2G, Form 8300 (to recipients), Form 8809
February 1 – Form 1099-NEC (to recipients)
February 1 – Form W-2 (to employees), Form W-3 (to IRS)
February 1 – File 2020 Forms 940 , 941 (2020 Q4), 943, 944, 945
February 1 Form 720 (2020 Q4), Form 730 (Dec. 2020), Form 2290 (Dec. 2020)
February 10 – Form 1040 (Jan. 2021)
February 10 – File 2020 Forms 940, 941 (2020 Q4), 943, 944, 945
February 16 – Form W-4
February 16 – Forms 1099-B, 1099-S, 1099-MISC (attorneys)
Relevant Tax Management Portfolios
Portfolio 6920
Transfer Pricing: Advance Pricing Agreements
Tax Management Portfolio, Transfer Pricing: Advance Pricing Agreements, No. 6920, discusses the factors to consider in deciding whether to seek an advance pricing agreement (APA), and details the considerations to take into account and the steps to take at each stage of the APA process.
Portfolio 6924
Transfer Pricing: Audits, Appeals, and Penalties
This Portfolio analyzes transfer pricing recordkeeping requirements; audits, appeals, and penalties; document requests and summonses; and Competent Authority consideration in transfer pricing cases.
Portfolio 6904
Transfer Pricing: Cost-Sharing Arrangements (CSA)
This Portfolio, Cost-Sharing Arrangements, describes the considerations in deciding whether affiliated parties that are developing intangible property should use a cost-sharing arrangement (CSA) to share the costs of development and allocate ownership of such property.
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