The fact that the 8606 form was not filed does not mean that your basis in your Tradtional IRA is zero. If you entered your Backdoor Roth conversion properly, you should not pay any taxes on the first $6,000 or the 2nd $6,000.
Please clarify: Did you convert $12,000 to Roth IRA?
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
