State tax filing
Your issue doesn't seem to be capital gains. It appears that the difference is the $3,036. Oklahoma is adjusting that as taxable, whereas your return had zero listed on Line 1 (Oklahoma source income). Since the royalties are taxable to the state, the adjustment made by the state is correct.
You are required to allocate the Oklahoma sourced income items to the state on the screens, Oklahoma Income. If no number is entered under the Oklahoma amount, then nothing will be on the return as taxable.
Go back through the screens and allocate your royalty income to Oklahoma. An example of this screen is attached below. In this example, I entered a royalty of $5,000 and there was a depletion deduction taken. The total nets out to $4,250. This amount flowed to the Oklahoma nonresident return.
