- 1st Qtr. Jan. 1 to Mar. 31 Due Apr. 30
- 2nd Qtr. Apr. 1 to Jun. 30 Due July 31
- 3rd Qtr. Jul. 1 to Sept. 30 Due Oct. 31
- 4th Qtr. Oct. 1 to Dec 31 Due Jan. 31
The postmark will be used to determine the date mailed. If the due date falls on a weekend or holiday, the due dates fall to the next business day. You may also bring your returns to the CBY office.