Where are you trying to enter it? If it’s in the state refund section you don’t need to enter it at all if you took the Standard Deduction on last year’s federal return. You can enter any state payments made in 2025
Enter it under
Federal
Deductions and Credits
Then scroll way down to Estimates and Other Taxes Paid
Other Income Taxes - Click the Start or Update button
Next page scroll way down to the last section, Other Income Taxes Paid
