Federal Tax Calendar

Here are some key dates for the current tax year.

2021

January
15 – Fourth quarter 2020 estimated tax due. Use Form 1040-ES.
February
1 – Deadline for employers to provide copies of Forms W-2 and 1099 for 2020 to employees.
16 – If you claimed exemption from income tax withholding last year on the Form W-4 you gave your employer, you must file a new Form W-4 by February 16 to continue your exemption for another year.
March
2 – Deadline for farmers and fishermen who have a balance due on their taxes to file their 2020 individual income tax returns and pay the balance due without penalties.
15 – Deadline for 2020 S Corporation corporate tax returns (Form 1120-S) or to request an extension using Form 7004.
15 – Deadline to file 2020 partnership tax returns (Form 1065) or to request an automatic extension (Form 7004).
April
15 – Deadline to file 2020 individual income tax returns (Form 1040) and any taxes owed, or to file for an automatic 6-month extension.
15 – Last day to contribute to a traditional IRA, Roth IRA, or SEP-IRA for the 2020 tax year.
15 – First quarter 2021 estimated tax due. Use Form 1040-ES.
15 – Deadline to file 2020 trust tax returns (Form 1041) or to request an automatic extension.
15 – Deadline to file 2020 corporate tax returns (Form 1120) or to request an automatic extension (Form 7004).
June
15 – Deadline for U.S. citizens living abroad to file individual tax returns and pay any tax, interest, and penalties due, or to request a 4-month extension (Form 4868).
15 – Second quarter 2021 estimated tax due. Use Form 1040-ES.
September
15 – Third quarter 2021 estimated tax due. Use Form 1040-ES.
15 – Final deadline to file 2020 partnership tax return if you were given a 6-month extension.
October
1 – Deadline for existing employers to establish a SIMPLE IRA plan.
15 – If you were given a 6-month extension to file your income tax return for 2020, file Form 1040 and pay any tax, interest, and penalties due.
15 – Final deadline to file 2020 corporate tax return if were given a 6-month extension.

Source: Internal Revenue Service, 2020