After discovering a missing deduction last year, I filed amended 2017 federal and state returns. (I had already paid the tax due for both returns.) The federal return was unaffected, but the amended state return showed that I had overpaid by $40. The state sent me a check for this amount in 2018.
I did not receive a 1099-G form for the 2018 tax year. Also, I am unable to claim state taxes as a deduction on the 2018 return.
Do I need to include the 2017 state refund information on my 2018 federal return?