Taking Graduate Classes Before Bachelor Completion

Hello. I am interested in taking Masters level management, sociology, or public admin classes while I'm studying to complete my Bachelors in order to get a head start. Are there any accredited on-line universities that I can attend as a special student (not admitted into a program) where I can do this without the pre-reqs?

 

Most schools will let you take 6-9 credits without formal matriculation.

 

Yes, some school allows you to take graduate courses. I started my MBA while I am on the midst of completing my final module for my bachelor.