It depends. What state tax return are you filing? And what amount of rent paid did the state ask for to calculate the credit: the monthly total or the yearly total?
If you have not yet filed your tax return, you can go back to the rental credit area in your state tax return in TurboTax and change your answer if needed.
If you have already filed your return, you will need to wait until it is accepted by the state taxing authority and any refund due is received before amending the return to correct the rent paid amount.
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