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2021 Tax Calendar

To help you make sure that you do not miss any important 2021 deadlines, we have provided this summary of when various tax-related forms, payments and other actions are due. Please review the calendar and let us know if you have any questions about the deadlines or if you would like assistance in meeting them.

Date Deadline for:
February 1 Businesses: Providing Form 1098, Form 1099-MISC (except for those that have a February 16 deadline), Form 1099-NEC and Form W-2G to recipients.

Employers: Providing 2020 Form W-2 to employees. Reporting income tax withholding and FICA taxes for fourth quarter 2020 (Form 941). Filing an annual return of federal unemployment taxes (Form 940) and paying any tax due.

Employers: Filing 2020 Form W-2 (Copy A) and transmittal Form W-3 with the Social Security Administration.

March 15 Calendar-year S corporations: Filing a 2020 income tax return (Form 1120S) or filing for an automatic six-month extension (Form 7004) and paying any tax due.

Calendar-year partnerships: Filing a 2020 income tax return (Form 1065 or Form 1065-B) or requesting an automatic six-month extension (Form 7004).

April 15 Individuals: Filing a 2020 income tax return (Form 1040 or Form 1040-SR) or filing for an automatic six-month extension (Form 4868) and paying any tax due. (See June 15 for an exception for certain taxpayers.)

Individuals: Paying the first installment of 2021 estimated taxes, if not paying income tax through withholding (Form 1040-ES).

Individuals: Making 2020 contributions to a traditional IRA or Roth IRA (even if a 2020 income tax return extension is filed).

Individuals: Making 2020 contributions to a SEP or certain other retirement plans (unless a 2020 income tax return extension is filed).

Individuals: Filing a 2020 gift tax return (Form 709) or filing for an automatic six-month extension (Form 8892) and paying any gift tax due. Filing for an automatic six-month extension (Form 4868) to extend both Form 1040 and, if no gift tax is due, Form 709.

Household employers: Filing Schedule H, if wages paid equal $2,200 or more in 2020 and Form 1040 is not required to be filed. For those filing Form 1040, Schedule H is to be submitted with the return and is thus extended to the due date of the return.

Trusts and estates: Filing an income tax return for the 2020 calendar year (Form 1041) or filing for an automatic five-and-a-half month extension to October 1 (Form 7004) and paying any income tax due.

Calendar-year C corporations: Filing a 2020 income tax return (Form 1120) or filing for an automatic six-month extension (Form 7004) and paying any tax due.

Calendar-year corporations: Paying the first installment of 2021 estimated income taxes.

April 30 Employers: Reporting income tax withholding and FICA taxes for first quarter 2021 (Form 941) and paying any tax due.
May 17 Exempt organizations: Filing a 2020 calendar-year information return (Form 990, Form 990-EZ or Form 990-PF) or filing for an automatic six-month extension (Form 8868) and paying any tax due.

Small exempt organizations (with gross receipts normally of $50,000 or less): Filing a 2020 e-Postcard (Form 990-N), if not filing Form 990 or Form 990-EZ.

June 15 Individuals: Filing a 2020 individual income tax return (Form 1040 or Form 1040-SR) or filing for a four-month extension (Form 4868) and paying any tax and interest due, if you live outside the United States.

Individuals: Paying the second installment of 2021 estimated taxes, if not paying income tax through withholding (Form 1040-ES).

Calendar-year corporations: Paying the second installment of 2021 estimated income taxes.

August 2 Employers: Reporting income tax withholding and FICA taxes for second quarter 2021 (Form 941) and paying any tax due.

Employers: Filing a 2020 calendar-year retirement plan report (Form 5500 or Form 5500-EZ) or requesting an extension.

September 15 Individuals: Paying the third installment of 2021 estimated taxes, if not paying income tax through withholding (Form 1040-ES).

Calendar-year corporations: Paying the third installment of 2021 estimated income taxes.

Calendar-year S corporations: Filing a 2020 income tax return (Form 1120S) and paying any tax, interest and penalties due, if an automatic six-month extension was filed.

Calendar-year S corporations: Making contributions for 2020 to certain employer-sponsored retirement plans, if an automatic six-month extension was filed.

Calendar-year partnerships: Filing a 2020 income tax return (Form 1065 or Form 1065-B), if an automatic six-month extension was filed.

October 1 Trusts and estates: Filing an income tax return for the 2020 calendar year (Form 1041) and paying any tax, interest and penalties due, if an automatic five-and-a-half-month extension was filed.

Employers: Establishing a SIMPLE or a Safe-Harbor 401(k) plan for 2020, except in certain circumstances.

October 15 Individuals: Filing a 2020 income tax return (Form 1040 or Form 1040-SR) and paying any tax, interest and penalties due, if an automatic six-month extension was filed (or if an automatic four-month extension was filed by a taxpayer living outside the United States).

Individuals: Making contributions for 2020 to certain existing retirement plans or establishing and contributing to a SEP for 2020, if an automatic six-month extension was filed.

Individuals: Filing a 2020 gift tax return (Form 709) and paying any tax, interest and penalties due, if an automatic six-month extension was filed.

Calendar-year C corporations: Filing a 2020 income tax return (Form 1120) and paying any tax, interest and penalties due, if an automatic six-month extension was filed.

Calendar-year C corporations: Making contributions for 2020 to certain employer-sponsored retirement plans, if an automatic six-month extension was filed.

November 1 Employers: Reporting income tax withholding and FICA taxes for third quarter 2021 (Form 941) and paying any tax due.
November 15 Exempt organizations: Filing a 2020 calendar-year information return (Form 990, Form 990-EZ or Form 990-PF) and paying any tax, interest and penalties due, if a six-month extension was previously filed.
December 15 Calendar-year corporations: Paying the fourth installment of 2021 estimated income taxes.
December 31 Employers: Establishing a retirement plan for 2021 (generally other than a SIMPLE, a Safe-Harbor 401(k) or a SEP).

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