I'm pretty certain it's an annual but I've only begun growing it this year myself.

Black eyed Susan vine is a annual. Collect the seeds when they are brown and replant next spring.
Nice vine! Boop

Black Eyed Susan Vine (Thunbergia alata)is actually a tender perennial, usually grown as an annual. If it's in a pot, bring it in for the winter and keep it above 45 degrees. If it's in the ground, either save seeds for next year or dig it up.

It's a perennial in my zone however, in your zone, I'd take Judith's advice and pot and overwinter it if you would like it next year.

Can I plant this vine in the pot I bought it in, so I can more easily bring it in for the winter? Also does it stay green when brought inside, should it go into a bigger pot and do you have any other winterizing tips for it?