Late registration is the window after the regular deadline—usually about two weeks before the test instead of five—and it lets you sign up by paying an extra late fee, which is still far better than relying on standby. Every test date has both deadlines, and the exact dates change each year. Check the current calendar in our ACT test dates guide, then confirm on act.org before you register.
Regular vs. late registration
The regular deadline falls roughly five weeks before the test. Hit that deadline and you avoid the late fee and get the best choice of test centers and formats. The late deadline is usually about two weeks before test day. You can still register, but ACT adds a late fee on top of the standard registration cost. See how much the ACT costs for the full fee breakdown.
Late registration vs. standby
Late registration actually reserves your seat. Standby, which kicks in after the late deadline closes, only puts you on a waitlist with no guarantee. If you are cutting it close, late registration is the move—even with the extra fee, you know you have a spot if seats remain.
Seats can fill before the late deadline
"Late" describes the fee, not unlimited availability. Popular test centers and formats can sell out before either deadline. If a date matters for your college timeline, do not wait until the late window. Seniors especially should read your last chance to retake the ACT before deadlines before picking a date.
Build the habit of registering early
The easiest way to skip late fees is to register when you first decide on a date. Walk through how to register for the ACT as soon as you have your test date picked. You will save money, get a better center, and leave room for photo upload and any registration changes you might need later.
The bottom line
Late registration is a safety net, not a plan. Use it if you have to, but aim for the regular deadline every time. It costs less, locks in your seat sooner, and keeps your test day from becoming a scramble.
Start practicing
Start with a free diagnostic, then drill your weak spots with 15-question quizzes and track how you're doing across Reading, English, and Math. Compare plans whenever you're ready to go further.
This article offers general ACT prep guidance. The ACT can change from year to year, including its format, scoring, policies, test dates, and fees, so always confirm the latest details on the official ACT website at act.org before you make decisions. ACT® is a registered trademark of ACT, Inc. thirty-six is not affiliated with, endorsed by, or sponsored by ACT.