TaxDrop™ — Property Tax CalculatorStart My Protest

What's your property tax rate?

Enter your property address to instantly see your current tax rate broken down by every taxing unit — county, city, school district, and more.

Property Address

Free to use
No signup required
TX & CA coverage

How it works

  1. 1Enter your property address
  2. 2We identify your county, city & school district
  3. 3See every taxing unit's rate and your annual estimate

Taxing units we break down

CountyCity / MunicipalSchool DistrictSpecial DistrictsMUD / Water

$700B+

Property taxes collected annually

Across U.S. homeowners

2.1%

Average TX effective tax rate

Harris, Dallas, Travis counties

1.1%

Average CA effective tax rate

Post-Prop 13 with bond levies

4–7

Taxing units per property

County · ISD · City · Special

How property tax is calculated

Understanding your property tax bill starts with knowing how each taxing unit contributes to your total rate.

Assessed Value

Your county appraisal district determines your property's taxable value each year. In Texas this is the appraised market value (with homestead exemptions applied). In California, Proposition 13 caps annual increases at 2% unless the property changes ownership.

Tax Rate per $100

Each taxing unit adopts an annual tax rate expressed as dollars per $100 of assessed value in Texas, or as a percentage in California. Your total rate is the sum of every applicable unit's rate — county, school district, city, and all special districts.

Your Annual Tax Bill

Annual Tax = (Assessed Value ÷ 100) × Total Rate (TX) or Assessed Value × Total Rate (CA). A $400,000 home in a 2.25% rate area pays $9,000/year. The TaxDrop calculator shows this estimate instantly after you enter your address.

What is a taxing unit?

A taxing unit is any government entity authorized by state law to levy property taxes on real property within its jurisdiction. Most homeowners are subject to 4 to 7 overlapping taxing units simultaneously — meaning each unit independently sets its own rate, and you pay all of them.

The most common taxing units are: the county (funds courts, roads, and county services), the independent school district (ISD) (typically the largest single component, funding K–12 public education), the city or municipality (funds police, fire, parks, and local infrastructure), and various special districts such as Municipal Utility Districts (MUDs), Hospital Districts, Community College Districts, and Emergency Services Districts.

TaxDrop's calculator identifies every taxing unit applicable to your specific address and displays each unit's individual rate, annual dollar cost, and percentage share of your total tax bill.

Texas & California property tax coverage

TaxDrop currently serves homeowners in Texas and California — the two largest property tax markets in the United States by total assessed value.

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Texas

Available Now

Texas has no state income tax, making property taxes the primary revenue source for local governments. The state's effective property tax rate averages 1.6%–2.8%, among the highest in the nation. Texas homeowners can file an annual property tax protest with their county appraisal district — a right that can result in significant savings.

Major Texas markets covered: Houston (Harris County), Dallas (Dallas County), Austin (Travis County), San Antonio (Bexar County), Fort Worth (Tarrant County), and all 254 Texas counties.

Annual protest deadline: May 15
Homestead exemption available
Over-65 and disability exemptions
No cap on annual value increases (non-homestead)
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California

Available Now

California's property taxes are governed by Proposition 13 (1978), which caps the base tax rate at 1% of assessed value and limits annual assessment increases to 2% until the property is sold. Voter-approved general obligation bonds add 0.10%–0.50% on top, bringing effective rates to 1.1%–1.5% in most counties.

Major California markets covered: Los Angeles County, San Diego County, Orange County, Santa Clara County (Silicon Valley), Alameda County (Oakland/Berkeley), and all 58 California counties.

Assessment appeal window: July 2 – Nov 30
Prop 13 base rate capped at 1%
Prop 19 parent-child transfer rules
Supplemental assessments on purchase

Why homeowners use TaxDrop

From free lookup to full protest — we handle everything on contingency.

No upfront cost

You pay 25% of savings only. If we don't save you money, you owe nothing.

Free rate lookup

Instantly see your full tax rate breakdown by every taxing unit — no account needed.

Expert analysis

Our team reviews comparable sales and appraisal data to build the strongest possible case.

We handle everything

From filing the protest to attending the hearing — TaxDrop manages the entire process.

Frequently asked questions

Everything you need to know about property tax rates, taxing units, and how to reduce your bill.

Enter your property address in the search field above. TaxDrop's calculator geocodes your address, identifies your county and state, then displays your total effective property tax rate along with a complete breakdown by every taxing unit — county, school district, city, and any special districts. The entire lookup takes under 10 seconds.

Disclaimer: Tax rates shown are estimates based on county-level data and are provided for informational purposes only. Actual rates may vary. TaxDrop makes no warranty as to the accuracy or completeness of this information. Always verify with your county appraisal district or tax assessor-collector. TaxDrop currently serves property owners in Texas and California only.