Use the amount you actually got in 2023 for a state refund. But it might not be needed. Did you take the Standard Deduction or Itemized on your 2022 federal return?
A State Tax Refund is taxable if you itemized deductions on that prior year's federal return and took a deduction for state income taxes instead of the sales tax. You got a deduction benefit for it so now you have to include it as income. If you took the Standard Deduction it is not taxable and you don't need to report it. Check your 1040 line 12 to see which deduction you took.
