Is medical marijuana deductable

[Bsch4477]

While marijuana is legal in many states it is not federally so you can’t deduct it on your federal return. California doesn’t allow that deduction either. I don’t know about other states. 

[MaryK4]

Unfortunately, for federal taxes no.  A revenue ruling dating back to 1997, shortly after California became the first state to legalize medical marijuana, provides that an amount paid to obtain a controlled substance such as marijuana is not a deductible medical expense — even if state law requires and the taxpayer obtains a prescription from a physician [Rev. Rul. 97-9, 1997-1 CB 77].