I converted trad IRAs to Roth IRAs in prior years. I'm trying to report them in TurboTax now. TurboTax is asking if they're taxable or nontaxable, I'm not sure.

[dmertz · Accepted solution]

If you had no basis in nondeductible traditional IRA contributions and did no rollovers to an IRA of after-tax money from a qualified retirement plan like a 401(k), all of your Roth conversions were taxable conversions.  If any part of a particular conversion was from basis in nondeductible traditional IRA contributions or from after-tax money in a qualified retirement plan, that part would be a nontaxable conversion.

[ztildies]

They are taxable when you convert them. Roth IRAs are not taxable when you withdrawal them.