Key dates from the federal tax calendar.

January 31

Employers must send out W-2 Forms and 1099 Forms to employees and non-employees who provide services.

February 15

If you claimed exemption from income tax withholding on the W-4 Form you gave your employer last year, you must file a new Form W-4 by this date to continue your exemption for another year.

February 28

Businesses must file paper copies of Form 1099 with the Internal Revenue Service.

March 15

Businesses must file Form 1120 for the calendar year and pay any taxes due.

April 15

2018 individual income tax returns due, along with any tax, interest, and penalties due.

Last day to contribute to a traditional IRA, Roth IRA, or SEP-IRA for the 2018 tax year.

Estimated tax for the 1st quarter of 2019 due for those who do not pay their income tax throughout the year through withholding.

June 17

2018 individual income tax returns due for those who live outside the United States.

Estimated tax for the 2nd quarter of 2019 due for those who do not pay their income tax throughout the year through withholding.

September 16

Estimated tax for the 3rd quarter of 2019 due for those who do not pay their income tax throughout the year through withholding.

Business tax returns due for those businesses that were given a 6-month extension to file returns for 2018.

October 15

Individual income tax returns due for those who were given a 6-month extension to file income tax returns for 2018, along with any tax, interest, and penalties due.

C Corporations tax returns due for those businesses that were given a 6-month extension to file returns for 2018.

January 15, 2020

Estimated tax for the 4th quarter of 2019 due for those who do not pay their income tax throughout the year through withholding.