Make sense of
the numbers.

• Estimate a property tax bill

  Use a county’s Census effective rate with your home’s market value.

• Calculate a late-payment charge

  Calculate only where a cited rule defines the rate and schedule.

• Estimate exemption savings

  Apply a verified amount or percentage using your applicable tax rate.

• Is my assessment too high?

  Compare your notice’s market value with the county median, then check appeal instructions.

• Compare two to four counties

  Compare estimated rates, home values and annual taxes on the same basis.

• County rankings and rate map

  Explore the highest and lowest Census estimated effective rates nationally and within each state.

Updated October 25, 2026, from cited verification dates. Individual sources may have earlier checks.