I should clarify that the six-percent interest cap really has nothing to do with deployment status, and everything to do with going on active duty. Loans received BEFORE active duty are reduced to six percent interest during the time the servicemember is on active duty. Loans received after a member goes on active duty are not so protected, even if the member deploys.
The Servicemember's Civil Relief Act (SCRA) provides many civil protections for members of the military. For more information, see the articles, Servicemember's Civil Relief Act, Simplified, and Servicemember's Civil Relief Act, in Detail.

