Texas Property Tax Estimator
What You Need to Know (TL;DR)
In 2026, the mandatory Texas homestead exemption is $140,000 for school district taxes. Houston homeowners in Harris County pay an average effective tax rate of 2.18%. You must file your exemption with HCAD by April 30th to receive these savings on your next tax bill.
How Harris County Property Taxes Are Calculated
Because Texas has no state income tax, local jurisdictions rely heavily on property taxes to fund schools, roads, police, and infrastructure. In Houston, your total tax bill is a combination of several different taxing entities:
- School Districts: Usually the largest portion of your bill (e.g., Houston ISD, Cypress-Fairbanks ISD).
- Harris County: Funds county-level services and the hospital district.
- City of Houston: Funds municipal services.
- MUDs or LIDs: Municipal Utility Districts or Levee Improvement Districts (very common in suburbs).
The Harris Central Appraisal District (HCAD) determines the market value of your home every year. Your tax bill is simply: (Assessed Value - Exemptions) × Tax Rate.
Impact of the $140k Texas Homestead Exemption
Passed by Texas voters, the general residence homestead exemption removes $140,000 from your home's assessed value before school district taxes are calculated.
Savings Example:
- Home Value: $400,000
- Homestead Applied: -$140,000
- New Taxable Value: $260,000
This simple filing saves the average Houston homeowner thousands of dollars every year. Be sure to check out our complete guide to Texas property tax exemptions to see if you qualify for the Over-65 or Disabled Veteran exemptions, which provide even larger tax breaks.
How to Lower Your Houston Tax Bill (HCAD Protest Tips)
Filing your exemption is step one. Step two is protesting your home's assessed value every single year.
1. Gather Evidence
Take photos of needed repairs (cracked foundation, old roof) and gather quotes from contractors to prove your home is worth less than HCAD claims.
2. Hire a Firm
Most Texas property tax protest firms work on contingency—they only take a cut if they save you money. Learn more in our DIY vs Hiring a Firm comparison.
Frequently Asked Questions (FAQ)
What is the average property tax rate in Houston?
The average effective property tax rate in Houston (Harris County) is approximately 2.18%. However, rates can vary from 1.9% to over 3.0% depending on whether your home is located in a newer Municipal Utility District (MUD).
How much does the homestead exemption save in Harris County?
The standard Texas General Residence Homestead Exemption removes $140,000 from your home's taxable value for school district taxes. In Harris County, this typically translates to $1,500 to $3,000 in direct savings every year.
When are Houston property taxes due?
In Houston and across Texas, property tax bills are usually mailed out in October or November. They are due by January 31st of the following year. If unpaid, they become delinquent on February 1st and start accruing severe penalties and interest.
Does this calculator work for surrounding counties?
Yes. While optimized for Houston, if you enter a ZIP code for Fort Bend County (e.g., Sugar Land, Katy) or Montgomery County (e.g., The Woodlands), the calculator will pull the appropriate average rates for those regions.