TurboTax does not support calculating the taxable amount of a state refund for other than the immediately preceding year. TurboTax for 2019 will not calculate the taxable amount for a 2017 state refund received in 2019. You have to use Worksheet 2 in Pub. 525 to calculate the taxable amount yourself. If none of the refund is taxable, you do not have to enter it in TurboTax at all. If part or all of it is taxable, enter the refund in forms mode in Part VII line 36 of the State and Local Income Tax Refund Worksheet. Enter the taxable amount in column (d) on that line.
