I need to self-pay for surgery which will be performed in January 2024. The doctor requires me to pre-pay in 2024. I will have a smaller AGI in 2023 than I will in 2024 (as I will start collecting SS in 2024). Which year may I take the medical deduction on schedule A? For discussion purposes let's say my AGI is $80K in 2023 and $120K in 2024. And let's say the surgery is $40K. Please advise. Thanks!
