Self employed - health insurance premium deduction question

Greetings,

 

I'm self-employed and I purchased Medicare Pt. B, a Medigap Plan, and a Part D plan, all of which I'm including in my self employed health insurance deduction. My question is - I paid for the *2026* Part D plan in total, in advance, in December *2025*. Can I deduct that on my 2025 taxes even though it's for 2026 coverage?

 

(None of these were purchased through the marketplace obviously so I won't receive any 1095-A form).

 

Thanks in advance!