Important Tax Dates

When to pay estimated Taxes

Payment period: January 1 - March 31

Due date: April 15

Payment period: April 1 - May 31

Due date: June 15

Payment period: June 1- August 31

Due Date: September 15

Payment period: September 1 - December 31

Due date: January 15, of the following year


DOR Monthly State Taxes

Monthly returns are due the 25th of every month. (e.g the June tax return is due July 25.)

DOR Quarterly State Taxes

Quarterly returns are due the end of the month falling the tax quarter. (e.g the Quarter 1 (Jan, Feb, Mar) tax return is due April 30.)

DOR Annual State Taxes

Annual returns are due April 15. (e.g. The Annual 2019 tax return is due April 15, 2020)

If the due date falls on a weekend or legal holiday the date is extended to the next business day.