<p>I’m almost positive you cannot take an SAT subject test after high school. </p>
<p>From the Princeton Review review on SAT Subject Tests:</p>
<p>When Should You Take Them?
You can take an SAT Subject Test at any point in your high school career. Many take math Subject Tests in the fall of their senior year. Other tests, like sciences and languages, should be taken right after finishing related subjects in school.</p>
<p>Berkeley has some fantastic foreign language classes though! Maybe it would be a good opportunity to explore some of the offerings!</p>