If I purchased a car in 2015, can I deduct the sale tax of in the tax return of year 2016?

[ferrior]

I am in WA state.

[TomD8 · Accepted solution]

No.  You'd have to file an amended 2015 return.  You have to take the sales tax deduction in the year the sales taxes were actually paid.

https://ttlc.intuit.com/questions/3410543-how-do-i-amend-change-or-correct-a-2015-return-in-turbotax