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Austin, Williamson County, Texas Property Taxes

  • Median Austin, TX effective property tax rate: 1.67%, significantly higher than the national median of 1.02%, but equal to the Texas state median of 1.67%.

  • Median Austin, TX home value: $482,870

  • Median annual Austin, TX tax bill: $8,072, $5,672 higher than the national median property tax bill of $2,400.

How are property taxes in Williamson County calculated?

Property taxes in Austin, TX are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.

Understanding Austin’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Austin, knowing local tax details benefits homeowners and investors.

Last Updated March 1, 2025

Austin, Williamson County, Texas Property Tax Bill Calculator

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

1.67%

Estimate Property Tax Bill

$8,064

$7,483

SAVE WITH OWNWELL

$1,102

Average Tax Savings

Ownwell’s Austin Property Tax Bill Calculator empowers homeowners, real estate investors, and potential buyers to estimate their annual property taxes in Austin with just two data points. By entering your property's estimated assessed value, our calculator applies Austin’s median effective tax rate to accurately estimate your property tax bill. Note that your property's assessed value — determined by Williamson County — reflects any exemptions you may have, ensuring a more precise calculation for your property tax obligations. This insightful tool helps you understand potential tax liabilities and highlights how Ownwell can assist in reducing property taxes in Williamson County. For those interested in more localized information, please scroll down to explore city-level trends!

Property Tax Rates Across Austin, Williamson County, Texas

Local government entities determine property tax rates, and these can vary significantly within Texas. Every year, Williamson County estimates its budgetary needs for public services and divides that by the total value of all taxable properties within its area, resulting in the property tax rate. This process, though influenced by votes and legislation, essentially determines the annual tax rates.

Austin, located in Williamson County, has an effective property tax rate that reflects this calculation method. When comparing Austin's rate to other cities in Texas, it's evident that tax rates can fluctuate considerably. The median property tax rate in Texas is higher than the national median of 1.02%, showcasing the state's higher-than-average property tax burden. Within Williamson County, the highest median tax rate is found in the 78717 zip code, while the lowest is in the 78728 zip code. Understanding these variations can help property owners make informed decisions and consider potential savings through property tax appeals or exemptions.

Property Tax Rates Across Austin, Williamson County, Texas

Source: Ownwell

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0.50%

1.33%

2.16%

Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.

Median Effective Austin Tax Rate

1.67%

Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.

Median Effective Williamson County Tax Rate

1.68%

Median Effective Texas Tax Rate

1.67%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Austin, Williamson County, Texas

Zip10th Percentile25th PercentileMedian Tax Rate75th Percentile90th Percentile
78702N/AN/AN/AN/AN/A
787171.53%1.64%1.72%1.89%2.08%
78727N/AN/AN/AN/AN/A
787280.91%1.27%1.31%1.51%1.51%
787291.27%1.37%1.54%1.74%1.89%
787501.30%1.43%1.67%2.01%2.08%
787590.91%1.32%1.58%1.89%1.89%

Source: Ownwell

Property Tax Assessment Values Across Austin, Williamson County, Texas

When examining property taxes in Austin, TX, understanding the distinction between "market value" and "assessed value" is crucial. The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Williamson County Appraisal District estimates the market value for tax purposes. The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.

In Williamson County, assessment notices are sent in the spring each year. They’ll typically reach your mailbox by the middle of April. Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Austin.

For example, the median home price in Austin is $482,870, with tax bills ranging significantly across the county. Zip code 78717 has the highest median home price at $580,511.

Property Tax Assessment Values Across Austin, Williamson County, Texas

Source: Ownwell

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$53,849

$363,746

$673,643

Median Austin Market Value

$482,870

Median Williamson County Market Value

$409,799

Median Texas Market Value

$247,950

Median United States Market Value

$235,294

Property Tax Assessment Values Across Austin, Williamson County, Texas

Zip10th Percentile25th PercentileMedian Home Price75th Percentile90th Percentile
78702N/AN/AN/AN/AN/A
78717$412,888$482,998$580,511$720,182$855,982
78727N/AN/AN/AN/AN/A
78728$198,768$359,414$415,686$488,998$530,551
78729$373,197$410,334$453,830$505,519$558,325
78750$327,651$366,661$396,134$453,322$502,941
78759$246,229$297,934$486,820$536,104$564,532

Source: Ownwell

Property Tax Bills Across Austin, Williamson County, Texas

In Austin, located in Williamson County, TX, property tax bills are determined by assessing the market value of a home and multiplying it by the local tax rate. With a median home price of $482,870, homeowners can expect to pay a significant property tax bill. For instance, tax bills range widely, with the 25th percentile at $6,488 and the 75th percentile at $10,016. The highest median tax bill in the area reaches $9,842 in the 78717 zip code, while the lowest is $5,523 in the 78728 zip code. These figures are notably higher than the national median property tax bill of $2,400, reflecting the financial impact on homeowners. Ownwell offers a solution by providing property tax appeal and exemption services, potentially lowering the assessed value and consequently the tax bill. By leveraging expert knowledge and local market insights, Ownwell assists homeowners in reducing their financial burden, ensuring they only pay their fair share.

Property Tax Bills Across Austin, Williamson County, Texas

Source: Ownwell

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$605

$5,821

$11,036

Median Austin Tax Bill

$8,072

Median Williamson County Tax Bill

$6,856

Median Texas Tax Bill

$3,971

Median United States Tax Bill

$2,400

Property Tax Bills Across Austin, Williamson County, Texas

Zip10th Percentile25th PercentileMedian Tax Bill75th Percentile90th Percentile
78702N/AN/AN/AN/AN/A
78717$7,112$8,366$9,842$12,109$14,951
78727N/AN/AN/AN/AN/A
78728$1,207$3,466$5,523$6,479$7,055
78729$5,086$6,031$6,984$8,124$9,519
78750$4,707$5,624$6,874$7,855$8,992
78759$2,261$4,721$6,839$8,365$9,440

Source: Ownwell

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