Thank you for working it all out.
In your example, line 14 Oklahoma Taxable Income matches MI Income Taxed by Both Jurisdictions screen. Mine does not; in mine, the OK return, line 14 Oklahoma Taxable Income is considerably more than what appears on MI Income Taxed by Both Jurisdictions screen.
I have two sources of income - regular W2 income earned in MI and OK income, which are oil and gas royalties, reported on 1099 MISC, box 2 - which is probably what is adding complexity.
Even though I can't replicate TT's calculation, I'm comfortable it's correct and going with it.
