Accidental Traditional IRA Rolloiver

[macheung]

I've processed the return of excess contributions from the 2nd and 3rd Prudential IRA distributions back into my Vanguard brokerage account.  Can I use funds from that same Vanguard account to complete the Roth conversion?  I don't think I can roll over the return of excess contributions, but I have enough funds in the brokerage account to fund the conversion without using the excess contribution distribution.  For instance, if the returned excess contribution was $50K and I have and additional $75K in the brokerage account (for a total account balance of $125K), could I use $50K of that $75K to complete the indirect ROTH conversion without any adverse tax consequences?

[dmertz]

It doesn't matter where the funds come from.  Cash is fungible.  You are converting the original distributions from the traditional IRAs, not the returns of contributions.