You can check with the school that you anticpate transferring to, to see if they will accept the credits. The only classes that technically "expire" are your science classes if you are going into a medical program. That is because of new discoveries and techniques. As long as your school is accreditied and they have the same classes at the new school, you should be fine. I just went back to school and that was 20 years ago. Good Luck!! Keep everyone posted.