I've been using the backdoor IRA for a number of years.
Each year I would make both the contribution and Roth conversion of the entire amount around April of tax year + 1 (before the deadline).
This means that for tax year 2022 I contributed $6000 (contribution done in April 2023 before the deadline) and my basis was $6000 from the previous year. The Roth conversion happened few days after the contribution, in 2023.
In 2023 I started a new business and decided to not use the backdoor IRA anymore, and instead tuck away as much as I can in pre-tax SEP-IRA. This means I made no non-deductible contributions in 2023, but there was a conversion that was done as noted above.
On Dec 31 2023 I had no SEP-IRA or any other IRAs with a balance. I opened my SEP-IRA in April of 2024 and made a one-time funding of $30K to count against 2023.
My question is as follows: Will I have any tax implications resulting from the pro-rata rule? After all, there was no money in SEP accounts at the time I made a traditional-to-roth conversion in 2023, no SEP-IRA funds available on 12/31/2023, and SEP funds for 2023 were contributed in April of 2024.
