should I include a hot tub and sauna purchase in my state and local income tax deduction?

[xmasbaby0]

Sales tax is an itemized deduction.  Unless you have enough other itemized deductions to exceed your standard deduction the sales tax will have no effect on your tax due or refund.

“Major purchases” that you can enter for the sales tax deduction include:

Motor Vehicles (cars, trucks, motor homes, RV’s, sport utility vehicles and off-road vehicles

Aircraft or boats

Mobile homes

Manufactured housing

Building materials for major home improvements

You cannot deduct: furniture, jewelry, home electronics such as TV’s or computers

[Mike9241]

Sorry, but you have to choose between state income taxes and state sales taxes for Schedule A. It's one or the other. Not both.