The ACT is offered in September, October, December, February, April, June, and July in the United States, and in September, October, December, April, and June outside of the United States.
United States Testing Dates
| Test Dates | Sep 9, 2017 | Oct 28, 2017 | Dec 9, 2017 | Feb 10, 2018* | Apr 14, 2018 | Jun 9, 2018 | Jul 14, 2018* |
| U.S. Registration Deadline | Aug 4, 2017 | Sep 22, 2017 | Nov 3, 2017 | Jan 12, 2018* | Mar 9, 2018 | May 4, 2018 | Jun 15, 2018 |
| Late Registration Deadline | Aug 18, 2017 | Oct 6, 2017 | Nov 17, 2017 | Jan 19, 2018* | Mar 23, 2018 | May 18, 2018 | Jun 22, 2018 |
*No test centers are scheduled in New York for the February and July test dates. No test centers are scheduled in California for the July test date.
International Testing Dates
| Test Dates | Sep 9, 2017 | Oct 28, 2017 | Dec 9, 2017 | Apr 14, 2018 | Jun 9, 2018 |
| International Registration Deadline | Aug 4, 2017 | Sep 22, 2017 | Nov 3, 2017 | Mar 9, 2018 | May 4, 2018 |
