So here's the deal. Deadline is today but, will be extended to the 5th of January. If you pay your 2018 first 2 quarter taxes now you can claim it on your 2017 taxes and will be locked in for 2018 at your 2017 property tax prices. So if your property tax were to rise $3000 for the year of 2018, you're exempt from it and can't fall victim to it in 2019. (""So they claim"")
