If I take my last SAT subject test on the October test date, will I still be able to apply ED or EA? For example, Harvard’s EA deadline is early November, so will I be able to get my score in on time?
Usually it states on the web site what tests they can consider by date. Taking in October for a November EA submission normally would be fine.
It should be fine, but you may need to submit the score blindly (i.e. use the free report option).
Ok thanks! I have no other option so it would be either submit blindly or not apply ED/EA at all.
All colleges that require subject tests for admission accept through the Oct test for their EA or ED programs. Many of them, despite having early Nov application deadlines, accept through the Nov test date for EA or ED, and that includes all the ivies. Moreover, as to all colleges that actually require subject tests, you can wait until scores are released to send scores for the Oct test (they can arrive after the application deadline).
There are a small number of colleges that require all test scores to be in their hands by the application deadline for EA or ED, requiring you to send the Oct scores blind, but none of those require subject tests.