The asterisks on lines 13 and 15 indicate that TurboTax is doing the calculation on TurboTax's Taxable IRA Distribution Worksheet instead of using lines 6 through 12 of Form 8606. This is TurboTax's implementation of Worksheet 1-1 in IRS Pub 590-B. You can view this worksheet in forms mode or by printing your tax return with all forms and worksheets.
