What happened:
R0000-507-01 - A dependent on your return has already been claimed (or claimed themselves) on another return.
I have a college age son that is a dependent on my taxes this year. When I did my taxes last year 2019, I did not claim him. For tax year 2019, he worked the summer and filed a tax return and received a small refund. With that filing he also received the stimulus checks. For the summer of 2020, he did not work and will not file this tax season. What must I do to continue with my filing as it stands; College son as a dependent on my return?
