Where do i enter my NYS Property Tax Relief Payment in my Turbo tax?

[KristinaK]

If you are taking the itemized deduction on your tax return (federal side), reduce the property taxes you are claiming as a deduction by the amount of the Tax Relief Payment you've received. That's all you need to do. If you are taking a standard deduction, you do not need to enter it on your return at all. 

[Opus 17]

The New York return section may ask you if you received a payment or the amount, but that does not transfer to the itemized deduction.  You must report the amount by adjusting your property tax in the main itemized deduction interview.