Your Form 1099-R is prepared correctly in accordance with the IRS instructions for reporting a regular distribution from a traditional IRA. For such a distribution, box 2a is required to show the same amount as box 1 and have box 2b Taxable amount not determined marked. The payer is required to mark box 2b Taxable amount not determined because the taxable amount of such a distribution is not determined until the recipient prepares their tax return.
For such a distribution, TurboTax properly treats the entire amount as taxable unless you have told TurboTax that you have basis in nondeductible traditional IRA contributions, in which case TurboTax properly prepares Form 8606 to calculate the taxable and nontaxable portions of the distribution.
