My son has a 3.82, SAT 1640 and ACT 22. He did not study enough for these tests and knows he can do better. He applied to very few Universities in CA and 4 out of state. He was accepted at all 4 out of state but doesn’t want to go back to Boston or New York and not crazy about these schools after all. If he took a gap year would college admissions accept SAT and ACT scores if he re-takes them during the gap year.
Yes, he can retake those exams during a gap year.
Go for it, as long as he puts his nose to the grindstone!
He can re-take standardized tests but colleges would likely not be excited if that is the only thing he did during the gap year. Hopefully your S can find something good/meaningful to do with the year. He might also look at test optional colleges if scores don’t go up as much as hoped. http://www.fairtest.org/university/optional/state