The indication that you received from TurboTax is that the Roth conversion is not subject to any additional taxes, in other words, no early-distribution excise tax (penalty). You can verify that the Roth conversion is being treated as taxable by it being present on Form 1040 line 4b. As long is you did not indicate that you rolled over the distribution from the traditional IRA but instead indicated that you moved the money to another retirement account, that you did a combination of rolling over, converting and cashing out, and indicated the amount converted to Roth, TurboTax will treat the entire amount as taxable (assuming that you have no basis in nondeductible traditional IRA contributions)
