Should I prepay 2018 property taxes before EOY?

[ghost]

Ask your local tax authority if they allow it; some do and some do not. The IRS may not allow the deduction if your tax paid is not based on an actual tax assessment.

[SweetieJean · Accepted solution]

Please see this. How much you save is based upon your actual tax situation, including whether you are subject to AMT, so run the numbers.

https://www.irs.gov/newsroom/irs-advisory-prepaid-real-property-taxes-may-be-deductible-in-2017-if-a... 

[MightyQuinn71]

Just to clarify, there's no reason to prepay if you're subject to the AMT because SALT is put back into that calculation.  Is that correct or am I looking at this incorrectly?