Collin County, TX Property Tax: $7,432/yr (2026)
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The effective property tax rate in Collin County is 1.66% of assessed home value. On a home at the county median value of $447,600, that works out to about $7,430 per year, or $619 per month. Collin County is located in northern Texas, and is home to approximately 1,116,601 residents.
About Collin County
Collin County covers approximately 841.4 square miles in Texas. The county is home to about 1,116,601 residents living in roughly 421,938 housing units, of which 60.8% are owner-occupied. The median household income is $117,588, and the median home was built in 2002.
Collin County borders Dallas County, Denton County, Fannin County, Grayson County, Hunt County — useful comparisons if you're considering nearby areas with potentially different tax rates.
How Property Taxes Work in Texas
Property taxes in Texas are administered at the county level. Each county sets a millage rate applied to the assessed value of real property — the effective rate above accounts for any partial assessments and exemptions already built into the local tax base. Assessed value can differ meaningfully from current market value depending on how often the county reassesses and what fraction of market value it uses.
Most counties in Texas offer exemptions that reduce the taxable assessed value: homestead exemptions for primary residences, senior exemptions, disability exemptions, and veteran exemptions are common. These reduce your effective rate below the county-wide average shown here. Contact the Collin County Assessor's office to learn which exemptions apply to your property and when to file.
Collin County vs. Neighboring Counties
| Location | Eff. Rate | Median Home | Annual Tax |
|---|---|---|---|
| Collin County, TX | 1.66% | $447,600 | $7,430 |
| Texas state average | 1.28% | — | $5,729* |
| Dallas County | 1.68% | $277,900 | $4,668 |
| Denton County | 1.72% | $403,400 | $6,943 |
| Fannin County | 1.10% | $213,500 | $2,356 |
| Grayson County | 1.29% | $228,300 | $2,953 |
| Hunt County | 1.30% | $210,900 | $2,736 |
| US national average | 1.10% | $281,900 | $3,101 |
*State average annual tax computed at Collin County's median home value of $447,600. Source: US Census ACS 2023 5-year estimates.
Frequently Asked Questions
How does Collin County's property tax rate compare to the rest of Texas?
At 1.66%, Collin County is higher than the Texas state average of 1.28%. On a home at the county median of $447,600, that means about $7,430 per year — versus $5,729 at the state average rate, a difference of $1,701 per year. Compared to the national average of 1.10%, Collin County is above average.
What's a typical annual property tax bill in Collin County?
For a home at the county median value of $447,600, the annual property tax in Collin County is approximately $7,430 — or about $619 per month. For a home worth $671,400, expect around $11,145 per year. For a $895,200 home, approximately $14,860 per year. Use the calculator above to estimate taxes for any assessed value.
Where do I appeal a Collin County property tax assessment?
Property assessment appeals in Collin County are handled by the Collin County Assessor's office. Most jurisdictions require filing within 30–90 days of receiving your assessment notice — confirm the specific deadline with the assessor's office before submitting, as deadlines and procedures vary by county. A successful appeal can reduce your assessed value and lower your tax bill for the current and future tax years.
What exemptions are available in Collin County?
Texas counties commonly offer homestead exemptions for owner-occupied primary residences, senior citizen exemptions for qualifying homeowners aged 65 and older, exemptions for disabled residents, and veterans' exemptions. Each exemption reduces your assessed taxable value, which in turn reduces your effective tax rate below the county-wide 1.66% shown here. Contact the Collin County Assessor's office to confirm which exemptions are available and the application deadlines.
Data sources: US Census Bureau ACS 2023 5-Year Estimates, US Census Gazetteer (2024), County Adjacency File