You'll have a 2024 Form 8606 reporting on line 1 the traditional IRA contribution that results from the recharacterization of the 2024 Roth IRA contribution, assuming that that traditional IRA contribution is nondeductible. TurboTax will automatically generate Form 8606 when needed.
Regular distributions in 2025 of the excess contributions made for 2019 through 2023 will appear on your 2025 Form 8606 Part III (assuming that you are under age 59½, meaning that these distributions are not qualified distributions that would not be reportable on Part III).
