Can I claim the opportunity credit more than 4 times if it takes me 8 years to finish my Bachelor's degree?

[Hal_Al · Accepted solution]

No.  The American Opportunity Credit (AOC) has a 4 time limit. Period.

After you (and/or your parents) have used the AOC 4 times, you can then use the less generous Lifetime Learning Credit (LLC). There is no limit on how many times the LLC can be used.