For tax year 2019, TurboTax seems to actually include this as a feature -- see attached from Home & Business download edition. If I fill in this section, TurboTax includes MCMT on the Taxes and Licenses line of Schedule C. It also adds it back in later as a New York addition on my New York return. The interview screens seem to show the same for UBT, so I'm guessing it is treated the same way (I didn't pay any UBT last year so I didn't get to see it in action)
