The ACT is offered in September, October, December, February, April, and June in the United States, and in September, October, December, April, and June outside of the United States.
| Test Dates | Sep 10, 2016 | Oct 22, 2016 | Dec 10, 2016 | Feb 11, 2017* | Apr 8, 2017 | Jun 10, 2017 |
| U.S./International Registration Deadline | Aug 7, 2016 | Sep 16, 2016 | Nov 4, 2016 | Jan 3, 2017* | Mar 3, 2017 | May 5, 2017 |
| Late Registration Deadline (U.S. only) | Aug 19, 2016 | Sep 30, 2016 | Nov 18, 2016 | Jan 14, 2017* | Mar 17, 2017 | May 19, 2017 |
*February registration information is only pertinent to U.S. test-takers.
