"They told me to report it on the 2023 taxes with Form 5498 (boxes 13a-c)."
@Op118 , you misunderstood. Fidelity will be reporting it on a 2023 Form 5498, but you must report this $6,000 contribution made for 2022 on your 2022 tax return. If the contribution is nondeductible it must be reported on line 1 of your 2022 Form 8606. The resulting line 14 of your 2022 Form 8606 will carry forward to line 2 of your 2023 Form 8606.
You must report the Roth conversion performed in 2023 on your 2023 tax return by entering the 2023 From 1099-R that you will be receiving near the end of January 2024.
