How Texas Property Taxes Are Calculated

Texas property taxes are a major expense for homeowners, landlords, and commercial business owners. Yet many people never receive a clear explanation of how their specific tax bill is actually calculated.

The truth is, the process is much simpler than it looks. Once you understand the steps, you can better evaluate your Notice of Appraised Value and decide if you need to file a property tax appeal.

Here is the plain English guide on exactly how that formula works in Texas.

• 1

  The District Estimates Your Property Value

  Each county in Texas has a local Appraisal District. Its job is to estimate the market value of every property as of January 1st each year. "Market value" simply means what the property would likely sell for on the open market.

  Because it is impossible to inspect every property individually, appraisal districts use mass appraisal methods, looking at:

  • Recent sales of similar properties (comps)
  • Size and square footage
  • Location and neighborhood
  • Age and overall condition
  • Income data (for commercial properties)
• 2

  Exemptions Reduce the Taxable Value

  For residential properties, state exemptions can drastically reduce how much of the property is actually taxed. Common exemptions include the General Homestead exemption (for your primary residence), Over-65 exemptions, and Disabled Veteran exemptions.

  Example:

  If your home is appraised at $350,000, and you have a standard $100,000 homestead exemption for your school district, your Taxable Value is only $250,000. Your taxes are calculated on that lower number.

• 3

  The 10% Homestead Cap is Applied

  If you have a homestead exemption, Texas law strictly limits how much your taxable value can increase each year. This is known as the 10% homestead cap. Your taxable value cannot increase by more than 10% per year, plus the value of any new improvements (like adding a pool).

  Even if the housing market explodes and your home's actual market value jumps by 25%, your taxable value will hit a hard ceiling at 10%.

• 4

  The 20% Commercial Circuit Breaker

  Commercial and income-producing properties do not qualify for the homestead cap. However, Texas law now provides a similar protection known as the circuit breaker limitation for certain non-homestead real property.

  This rule limits the appraised value increase of qualifying commercial properties to 20% per year. Unlike the homestead cap, this applies directly to the appraised value, helping to prevent sudden, extreme spikes for business owners and investors.

• 5

  Local Taxing Units Set the Tax Rate

  Property taxes in Texas are strictly local. That means your total tax bill is made up of several different taxing entities stacking their rates together. Common taxing units include your School District, City, County, Community College District, and Special Utility Districts (like MUDs).

  While there is no state property tax, the average combined local rate usually hovers around 1.8% to 2.5% depending on where exactly you live.

• 6

  Your Final Property Tax Bill Is Calculated

  Once the final taxable value and the total combined tax rate are known, the calculation is straightforward.

  Example Calculation:

  $300,000 (Taxable Value) × 0.02 (2.00% Tax Rate) = $6,000 Annual Property Tax Bill.

  Tax bills are typically mailed in October, and payment is due by January 31 of the following year.

Important Texas Property Tax Deadlines

The property tax cycle follows the same general timeline each year. If you plan to dispute your value, these dates are critical:

• January 1: Official property valuation date.
• April–May: Notices of Appraised Value are mailed to owners.
• May 15: The standard deadline to file a property tax protest.
• October–November: Final tax bills are sent.
• January 31: Payment deadline before penalties begin.