When you're late paying your property or real estate taxes you're usually just assessed a penalty which is in some percentage per the year.
Then when you go to pay the property taxes after being late you'll be charged that interest per year which makes the real estate taxes or property taxes a bit higher.
Then you usually have up to 3 years to pay your real estate taxes or property taxes before they put your home up for sale at a real estate tax auction.
They will then auction your home off to anyone willing to pay the back property taxes on your home.
Then a sheriff will force you out of the home because you no longer own the home even when the mortgage is paid off.