I read several posts here as well as other websites that backdoor roth only works if I have NO OTHER Traditional IRA accounts. However a CPA advised me that "As long as the nondeductible IRA is in an account separate for my other IRAs, I can convert the nondeductible IRA to Roth and the event is nontaxable and does not affect my other IRA accounts". I'm confused which one is correct. Could any expert or CPA here kindly advise? Thank you.
