When you earn your associate degree in arts can you be an interior designer?

It depends on what kind of work you want to do. If you would like your own business then you dont need any degree, but usually youll need to get a job in the field to learn the ropes, and there are many special skills and techniques youll have to learn too. My advice would be to get it as soon as possible, since you'll need an AA to go to any school.

Improvement: In most states in the USA, in order to call yourself an Interior Designer you need a BA in Interior Design, plus you need to get licensed under that state, which usually means taking some sort of exam. However, if all you are looking for is working at a store that offers design services, then an AA and lots of charisma will take you far.

In most cases you cannot have your own Interior Design business without an Interior Design license.