Solved
If I say no, all is not taxed. Even though 2a has a taxable amount.
To accommodate TurboTax, you must split the Form 1099-R into two, one for the portion rolled over to the Roth IRA and the other for the portion that you presumably rolled over to a traditional IRA. Any after-tax amount shown in box 5 is to be allocated first to the split form for the rollover to the Roth IRA and then, if any remains to the other form.
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