You can trick TurboTax into creating the correct reporting on your tax return by entering the HFD as a traditional IRA distribution with code 1 instead of as a Roth IRA distribution with code J. Whether from a traditional IRA or a Roth IRA, HFDs are not included on Form 8606, so the only reporting of the HFD on your tax return is that it will be included on Form 1040 line 4a and excluded from line 4b with the "HFD" notation. Line 10 of Form 8889 will also be correct. With no tax withholding, the IRS will be unaware that you used of code 1 instead of code J to accommodate TurboTax. (If this Form 1099-R includes other distributions from the Roth IRA, you'll need to split the Form into two for entry into TurboTax so that the other distributions are correctly reflected on Form 8606 Part III.)
