I received the same letter and could not get an explanation for the discrepancy. In both cases the Schedule C income per the Federal Return was less than on the Ohio IT BUS. Business Income schedule. In theory, both amounts should agree. I can't find a work sheet or any other explanation for the difference for both years. The state has sent me a letter asking me to explain the difference. What would Turbo Tax have me do?
The proper amounts for 2020 Schedule C income and Ohio IT Bus agree. So 2020 does not appear to be an issue.
