Completing AP course outside the school

Not exactly. Dual enrollment earns actual, transferable college credit. It will appear on his HS transcript as enrollment in a college class taken at [name of college]. It won’t appear on his HS transcript as AP credits/class.

Your son will need to send an official transcript from the dual enrollment college to the registrars office to have the transfer credits accepted at whatever college he ends up attending.

AP credits may earn your child advanced standing in the subject area, but without contributing quality points toward his college GPA. Dual Enrollment classes will earn transfer credit and are part of his college GPA calculations.