Payment and return deadlines
| Tax year | Qtr. | Qtr. start | Qtr. end | Return due | Payments due |
|---|---|---|---|---|---|
| 2017 | 4 | Oct. 1, 2017 | Dec. 31, 2017 | Jan. 31, 2018 | Nov. 30, 2017 Jan. 2, 2018 Jan. 31, 2018 |
| 2018 | 1 | Jan. 1, 2018 | March 31, 2018 | April 30, 2018 | Feb. 28, 2018 April 2, 2018 April 30, 2018 |
| 2018 | 2 | April 1, 2018 | June 30, 2018 | July 31, 2018 | May 31, 2018 June 30, 2018 July 31, 2018 |
| 2018 | 3 | July 1, 2018 | Sept. 30, 2018 | Oct. 31, 2018 | Aug. 31, 2018 Oct. 2, 2018* Oct. 31, 2018 |
| 2018 | 4 | Oct. 1, 2018 | Dec. 31, 2018 | Jan. 31, 2019 | Nov. 30, 2018 Dec. 31, 2018 Jan. 31, 2019 |
**These dates represent the first business day after the listed due date. In each case, the expected due date falls on a weekend.