On my common app, I submitted the application and didn’t include in the Testing section any tests other than the ones Ive taken (ACT). Well, about 3 weeks ago I signed up for the SAT Subject Tests. If i didn’t self report my scores ( because I haven’t even taken them) but I send my scores as soon as they’re released (Oct 22nd) will colleges still see the scores?
Yes colleges will see your scores as long as you added them on the registration form when you signed for it.
If you take tests after you have applied, the college will match the scores to your application when the test scores arrive as long as there are not errors that prevent such matching, e.g., you put different last names and social security numbers on the application and test registration.
If you are asking whether they will get them in time to consider them for earely action or early decision, the answer for most colleges is yes, but a small number tell you otherwise on their sites, e.g., Michigan says the October tests are too late for its early action.