Can I submit test scores after submitting my private school application?

Yes, you usually can—and if your scores have improved, you absolutely should. Think of it as a well-timed encore. Most schools are open to receiving updated materials, as long as they arrive before final decisions are made. But don’t just assume you can send them whenever you feel like it. 

Check the school’s policy on post-submission updates (yes, read the fine print). If allowed, send them via the official testing portal, or email the admissions office with a polite, “Here’s my glow-up score!” Just don’t send it weeks after decision letters go out—that’s not strategy, that’s just nostalgia. So if your latest SSAT or ISEE test is stronger, send it in quickly and let your improved score speak for itself—before the deadline does.