You cannot prepare or file a Cincinnati city return from TurboTax (TT). They are not RITA members.
If you also worked within the city limits of Cincinnati, you employer should have withheld the correct amount and you do not need to file a city return (Cincinnati is one of the few cities without a mandatory filing requirement). Verify by checking boxes 19 & 20 of your W-2.
Even if you didn't work in Cincinnati, there's a chance your employer withheld for Cincinnati or your work city. If he did not withhold for Cincinnati or he withheld for a different city, you will need to file a city return.
For filing instructions, see https://www.cincinnati-oh.gov/finance/income-taxes/. I think you can file from the web site.
