Workaround:Utah Form TC-40a Subtracting From Income Amount
Some TurboTax users are experiencing an error, "...amount has to be greater than 0" when filing a TC-40A. This occurs while processing a UT NR return with Schedule C losses, where the amount cannot be adjusted on the UT return. (The amount flows from 1040 line 12 and UT does not allow an adjustment.)
If a return contains this error it is recommended that the return be printed and mailed. We apologize for any inconvenience this may have caused.
We are aware of this experience and are looking at ways to improve this area in future editions of TurboTax.