Claim what you actually paid in 2020, even if it was for the first term of 2021.
The most generous credit, The American Opportunity Credit, can only be claimed 4 times in your life time. It is worth up $2500. each year. You may not want to use up one of your 4 times on on a mere $300.
But, the AOC can only be used on undergrad and vocational schools. Grad school is not eligible.
