Yes.
If you paid state income tax in 2018, or state and local taxes such as property tax, whether regularly assessed or because of an error in a prior year, those taxes are deductible in the year actually paid.
Please be aware that, as
a result of the Tax Cuts and Jobs Act of 2017, the state,
local, property, and sales tax (SALT) deduction is capped at $10,000 ($5,000 if
married filing separately).
