My child aged 26 made under $4,000 in 2019 and filed his own taxes already, but did not check off box that I (his parent) could claim him as a dependent. He received a small refund along with stimulus check. I'm not doing my return. I provided more than half his support and he lived with me the entire year. Can I still claim him as a dependent and if so, does he then need to amend his return to notify IRS that he can be claimed on someone else's return? Will this adversely affect him (will he owe back funds he received)? Is it worth my claiming him and amending his return?
