I have a 1099-R form for a Traditional IRA to Roth IRA conversion. Box 1 (Gross distribution) and 2a (Taxable amount) are both set to the same number and Box 2b (Taxable amount not determined) is checked. I have a basis carryover for this Traditional IRA but I don't see any place to lower the taxable amount by this basis, so Turbo Tax is trying to tax me for the entire amount in Box 1 and 2a. How do I get the basis points factored in?
