Calculate property taxes on any home in Illinois. The average effective property tax rate is 2.27% — higher than the national average of 1.07%.
Annual Tax (Median Home)
$6,129
Monthly Tax
$511
Tax Rate
2.27%
Avg effective rate
vs. National Avg
+$3,240
National avg: 1.07%
| Home Value | $270,000 | Median home price in Illinois (2025) |
| Effective Tax Rate | 2.27% | Illinois statewide average |
| Annual Tax | $6,129 | Home value × effective rate |
| Monthly Tax | $511 | Annual ÷ 12 months |
| National Avg Rate | 1.07% | US average effective rate |
| vs. National (annual) | +$3,240 | Difference vs. national avg on same home |
Illinois's effective property tax rate of 2.27% is higher than the national average of 1.07%. On the median home price of $270,000, homeowners pay approximately $6,129 per year — or $511 added to their monthly housing costs.
Property tax rates vary significantly within Illinois by county and municipality. The effective rate represents taxes paid as a percentage of home market value. Some counties may assess property at a fraction of market value, so the nominal (millage) rate may differ from the effective rate shown here.
