I checked with a friend that has a 2019 Phoenix 920 with a Merc 250 in Pickens County. He pays $821 on the boat and $348 on the motor. If you live in Fort Mill then your millage rate is rather high. You may still want to look at your tax receipt and see what the assessed value is. Take that value and multiply it by 10.5 and see if that equals what your boat should be worth. If it is high then go the the tax office and see if they will adjust it.