Cost, Gonzales County, Texas Property Taxes

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Property Taxes in Cost, Texas

Median COST, Texas effective property tax rate: 1.23%, significantly higher than the national median of 1.02%, and lower than the Texas state median of 1.48%.
Median COST, Texas home value: $169,730
Median annual COST, Texas tax bill: $869, lower than the national median property tax bill of $2,400.

How are property taxes in Gonzales calculated?

Property taxes in COST, Texas 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 COST's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in COST, knowing local tax details benefits homeowners and investors.

Last Updated April 13, 2026

Cost, Gonzales County, Texas Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

1.23%

Estimate Property Tax Bill

$2,088

$1,937

How Does the COST Property Tax Calculator Work?

Use this COST property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies COST's median effective tax rate of 1.23% — based on actual property records in Gonzales County — to generate your estimate.

Enter your property's estimated assessed value — the figure the local appraisal district uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies COST's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.

Your bill may vary by ZIP code within COST: rates range from 1.23% in COST to 1.23% in COST, primarily due to differences in school district levies and local assessment districts.

For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across COST.

About Cost Property Taxes

About Property Taxes in COST, Gonzales, Texas

COST’s median effective property tax rate of 1.23% is lower than the Texas state median of 1.48% and higher than the national median of 1.02%. This rate reflects the Gonzales County base levy combined with local school district levies and Municipal Utility Districts that vary by subdivision throughout the city.

Property tax rates are not uniform across COST. Homeowners in one ZIP code can face a higher effective rate than those in another, depending on how school district boundaries and local assessment districts are drawn across Gonzales County. Understanding which part of COST you live in can make a meaningful difference to your annual tax bill.

COST homeowners who believe their assessed value is too high can file a formal appeal with the local Appraisal District before May 15, 2026.

If your estimated bill seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.

Property Tax Rates Across Cost, Gonzales County, Texas

As noted earlier, local government entities set tax rates, which can vary widely within a state.

Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.

While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.

Below, you can compare Cost's effective property tax rate to other cities in Texas and the median property tax rates in Texas and the U.S.

Property Tax Rates Across Cost, Gonzales County, Texas

Source: Ownwell

0.46%

1.00%

1.55%

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 Cost Tax Rate

1.23%

Median Effective Gonzales County Tax Rate

1.42%

Median Effective Texas Tax Rate

1.48%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Cost, Gonzales County, Texas

Zip	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
78614	N/A	N/A	N/A	N/A	N/A

Source: Ownwell

Property Tax Assessment Values Across Cost, Gonzales County, Texas

When examining property taxes in Cost, Texas, 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 Gonzales 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.

Assessment notices:

In Gonzales County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of the month when notices are sent.

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 Cost.

For example, the median home price in Cost is $169,730, with tax bills ranging significantly across the county. has the highest median home price at $2365.

Property Tax Assessment Values Across Cost, Gonzales County, Texas

Source: Ownwell

$72,760

$233,298

$393,835

Median Cost Market Value

$169,730

Median Gonzales County Market Value

$118,240

Median Texas Market Value

$258,851

Median United States Market Value

$235,294

Property Tax Assessment Values Across Cost, Gonzales County, Texas

Zip	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
78614	N/A	N/A	N/A	N/A	N/A

Source: Ownwell

Property Tax Bills Across Cost, Gonzales County, Texas

How are property tax bills calculated in Cost, Gonzales County, Texas?

Property tax bills in Cost are determined by the assessed value of a home, which is based on the market value set by local taxing authorities. That assessed value is then multiplied by the applicable tax rate to calculate the annual bill. For homeowners, this means a higher market value generally leads to a higher property tax bill, while a lower assessed value can reduce what is owed.

Several factors affect the final amount, including the home’s location, the local tax rates, and any exemptions that may apply. In Cost, the median home price is $169,730, and property tax bills can vary widely from one homeowner to another. The 25th percentile bill is $241, while the 75th percentile reaches $2,365 and the 90th percentile climbs to $3,868.

Compared with the national median property tax rate of 1.02% and the national median property tax bill of $2,400, homeowners in Cost may see bills that are lower or higher depending on their assessed value and local rates.

Property Tax Bills Across Cost, Gonzales County, Texas

Source: Ownwell

$568

$2,499

$4,429

Median Cost Tax Bill

$869

Median Gonzales County Tax Bill

$1,025

Median Texas Tax Bill

$3,441

Median United States Tax Bill

$2,400

Property Tax Bills Across Cost, Gonzales County, Texas

Zip	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
78614	N/A	N/A	N/A	N/A	N/A

Source: Ownwell

Don't miss the deadline to protest!

Dates
Appeal Deadline	May 20
Tax Bill
Issued	October 1
Due Date #1	November 30
Due Date #2	June 30

Links
Gonzales Appraisal District
Website	www.gonzalescad.org

Frequently Asked Property Tax Questions in Cost, Texas

How are property taxes calculated in Cost, Texas?

Property taxes in Cost, Texas are calculated by multiplying your property's assessed value by the applicable tax rate set by local taxing authorities. The assessed value is determined by the county assessor and may differ from your property's market value depending on local assessment ratios and exemptions.

How do I appeal my property taxes in Cost, Texas?

To appeal your property taxes in Cost, Texas, you typically need to file a formal protest or appeal with your local appraisal district or assessor's office by the stated deadline. You'll need evidence such as comparable sales, a recent independent appraisal, or documentation of property condition issues. Ownwell can handle this entire process for you.

What property tax exemptions are available in Cost, Texas?

Common property tax exemptions in Cost, Texas include homestead exemptions for primary residences, senior citizen exemptions, veteran exemptions, and disability exemptions. Exemption amounts and eligibility requirements vary by county. Contact your local appraisal district or check Ownwell for details specific to your property.

When are property taxes due in Cost, Texas?

Property tax deadlines in Cost, Texas vary by county but typically include an assessment notice period in spring or early summer, followed by an appeal deadline, and a tax payment due date in the fall or winter. Check with your county assessor's office for specific dates in your area.

How can Ownwell help reduce my property taxes in Cost, Texas?

Ownwell provides professional property tax appeal services in Cost, Texas. Our team analyzes your assessment, gathers evidence, files all paperwork, and represents you at hearings — all with no upfront cost. You only pay a percentage of your savings if we successfully lower your tax bill.