Everything for Harris County property taxes in 2026: calculate your bill with the current 2.03% effective rate, see how assessment and exemptions work here, when payments are due, how to appeal — and where to pay.
How property tax works in Harris County
Effective rate
2.03% of market value · median annual bill $9,135
How homes are assessed
Texas appraises at 100% of market value; no state property tax — all rates are local (county + city + school district + special districts).
Homestead exemption
General residence homestead exemption of $100,000 off school-district taxable value, plus a 10% annual cap on appraisal increases for homesteads. Additional $10,000 school exemption at 65+, plus tax ceiling on school taxes.
Appealing your assessment
Protest deadline is generally May 15 or 30 days after the appraisal notice, whichever is later, via the county Appraisal Review Board.
When bills are due
Bills mailed in October; due on receipt, delinquent after January 31.
Local note
Rate varies significantly by school district within the county — county page should state the range, calculator uses the median.