State tax filing

With the Idaho Grocery Credit in the return, it will need to be filed by mail this year for a couple of reasons. It is not a dependent situation, as the review flagged, but the credit is still calculated and the return will need to be mailed. 

If residents qualify, the credit is calculated on Form 24, which can be included in the e-filed return. However, residents that don't qualify for Form 24, can still file for the credit on directly their Form 40, Idaho Resident return.
 

This is part of Form 24 and you can click here for more details. 

If you cannot use Form 24, normally it would go on Form 40 for full time residents of Idaho.
However, this return contains a Form 43 because it includes a Part-Year Resident and the credit will be calculated for the number of months residency in Idaho by the resident that is 65 or older. 

So, because the tax credit is calculating on Form 43, not on Form 24 or Form 40, it will need to be filed by mail. The good news is that the calculations are all correct and you will be due the tax credit. And, for 2023, if you are both full-time residents and age 65 or over it should be eligible to e-file. 
 

View from Form 43.