Does the amount listed as taxable in box 2a cause issues in calculating the tax? The dollar amount of the contribution is listed in box 2a as taxable. I thought a Backdoor Roth Conversion was a neutral tax event, so I have gone back and put a zero in the box 2a where the required 1099-R information is requested and there is a significant difference in the tax. It doesn't seem that the TurboTax questions about a rollover are addressing the presence of a "taxable amount" in box 2a.
