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Thank you for your timely response, it is greatly appreciated.  I had read different things regarding this, so I was confused.  Also, he just turned 18 at the end of 2021, so can I claim the child tax credit, or is he too old?  He is still in High School and has Autism and I am not receiving any child support for him and no other assistance and I pay his medical, Dr's visits, etc. by myself.  Are there any other tax credits, or just the claiming as a dependant?