When+Should+I+take+standardized+tests?

I am sorry but you don't have a choice for AP exams! They're all in May.

HOWEVER,

HERE ARE YOUR CHOICES FOR SATS:

October November December January March(Only available for United States. Ignore this if you go to school outside of US) May June

My suggestion would be to take one or two subject tests in your sophomore year. I recommend taking the subject test that you're studying in your one AP. For example, if you are taking the AP World History Class, take the World History subject test in May or June of your sophomore year. If you aren't satisfied with your score, take the test again in November or December of your Junior Year.

Take one or two subject tests related to the APs you are taking in your Junior Year. November or December is a good time. Take the SAT I(Reasoning Test) twice in your Junior Year, preferably January and May. If you are not satisfied with reasoning score, take the test one LAST time in October of your Senior Year. The October test in your senior will still be in time for your early applications.

Keep in mind that the TOEFL is required for students whose first language is not English. Some schools do not demand a TOEFL score if the applicant's Critical Reading score is over 600, but this does not apply to all schools. So take the TOEFL just in case. You shouldn't NEED to study for the TOEFL, but take a look at the test format on a test prep book to familiarize yourself with the material. You don't want to go to the test center without knowing the format of the test.