State tax PAID is not the same as a tax REFUND. They mean the opposite. You do not enter a state refund received as a deduction on Schedule A.
What you want to do is odd---you want to apply a 2019 state refund you may or may not have even received yet to a 2020 state tax return you are filing late----do you even know yet if you will owe tax to the state when you prepare the 2020 state return? Or will you get a 2020 state refund?
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