California Schedule S - Other State Tax Credit

No credit on part year returns.  You allocate the income to the correct state, there shouldn't be any double taxation.

Use the part year state allocation worksheet at the bottom of the federal information worksheet.

It would help to have a clear picture of what happened here, but I'll imagine that California residents had income from an Illinois business and/or real estate rental even before they moved to Illinois. While they lived in California, they had to pay tax there on that income.  So they qualify for Schedule S -- as that form's instructions state,

"California part-year residents:

• Follow the instructions for residents for the part of the year that you were a California resident."

And the credit can be shown on Line 58 or Line 59 of the 540NR.  If the software doesn't compute it automatically, you won't be the first preparer who has had to do it manually.  

Or did the Illinois income not start, until they left California?  Then don't show it on the California return in the first place.  

Thank you Bob. This is the situation, client was a resident of Illinois, he moved to California on 7/1/2020. All 2020 income was sourced in Illinois. But, client is subject to California state income tax for the income he received from all sources while he was a resident of California. All his income was earned in Illinois. Schedule S states that a taxpayer is taxed in another state on the same income, he is entitled to a tax credit for the tax paid to that other state on the same income. 

However, Proseries is not computing the schedule S. How do I make proseries calculate the schedule S automatically? Can you please help me? 

Thank you so much!! 

Bessy