You can always make a direct property tax payment online with the county.
At some point I may get one of those credit cards that gives you tons of points if you spend $10,000 in the first three months. I don’t spend that much normally, however using the card to pay $2500-5000 in property tax, while involving a credit card fee of about 2%, could still easily be worth it.
I tend to get Southwest and Delta credit cards because those miles are worth the most to me. The last few southwest cards I signed up for I got 50,000-80,000 in SW points as sign-up bonuses. At southwest’s 2.1 cent per mile conversion rate, that means the 80,000 mile signup bonus is worth about $1600. Paying a credit card fee of about $100 to prepay $5,000 in property taxes, I would still come out way ahead.
As someone mentioned, when the escrow company gets the tax bill and sees it mostly/entirely paid already, they only pay what is due and at the end of the year will send you a check from the escrow account that will give you back what you prepaid.
At some point I am going to take a business class trip to probably Singapore for an Asian vacation using these credit card bonus miles, something that normally costs $3000-6000.