How are property tax rates determined in Texas?

Property tax rates in Texas are set by each taxing district (municipality, school district, park district, library, etc.) based on their annual levy (the amount of tax revenue they need). The rate is calculated by dividing the levy by the total assessed value of all property in the district.

What is the composite tax rate?

The composite tax rate is the sum of all overlapping taxing district rates that apply to a specific property. A typical property may be taxed by several overlapping districts. The composite rate determines your total tax bill when multiplied by your property's assessed value.

Why do tax rates vary within the same town?

Properties within the same municipality can have different composite rates because overlapping districts (school, park, fire, library) have different boundaries. A home in one school district may have a different rate than a home two blocks away in a different school district.

Flower Mound, TX Property Tax Rate 2026 — Full Breakdown by District

Showing latest tax year with year-over-year changes. Full rate history available with a paid plan. View plans →

Property Tax — Tax Year 2025 (payable 2026)i

TX Comptroller

Composite Ratei

1.39%–1.85%-2.3%YoY

Varies by school district

Municipal Portioni

0.3873%+0%YoY23.9% of total

Effective Ratei

1.39%–1.85%

Est. Annual Taxi

$8K–$10K

Median Home Valuei

$560,200

Total Leviedi

$2.4B

Tax Per Capitai

$833

Rate varies by school district. Your actual rate depends on which school district your property falls in.

Rate Trend — click a year to explorei

20242025

Municipal

Other Districts

Where Your Tax Dollar Goesi

$0.79 Ponder ISD

$0.78 Lake Dallas ISD

$0.76 Little Elm ISD

$0.76 Aubrey ISD

$0.75 Prosper ISD

$0.75 Celina ISD

$0.75 Denton ISD

$0.74 Krum ISD

$0.72 Argyle ISD

$0.71 Sanger ISD

$0.69 Lewisville ISD

$0.67 Northwest ISD

$0.63 Frisco ISD

$0.60 Slidell ISD

$0.59 Carrollton-Farmers Branch ISD

$0.58 Pilot Point ISD

$0.50 Era ISD

$0.24 City of Flower Mound

$0.12 Denton County

Estimated Tax by Home Valuei

$300K

$4,159–$5,549

$400K

$5,546–$7,399

$500K

$6,932–$9,249

$600K

$8,318–$11,099

$700K

$9,705–$12,949

$800K

$11,091–$14,798

$900K

$12,478–$16,648

Highlighted value is closest to median home value ($560K)

19 Overlapping Taxing Districtsi

Ponder ISDUnit K-12i

78.9%1.2766%

$15.1M levied

Lake Dallas ISDUnit K-12i

77.6%1.2552%

$38.9M levied

Little Elm ISDUnit K-12i

75.7%1.2252%

$95.9M levied

Aubrey ISDUnit K-12i

75.7%1.2249%

$39.9M levied

Prosper ISDUnit K-12i

75%1.2141%

$61.7M levied

Celina ISDUnit K-12i

74.7%1.2089%

$5.3M levied

Denton ISDUnit K-12i

74.6%1.2069%

$391.0M levied

Krum ISDUnit K-12i

73.9%1.1952%

$25.2M levied

Argyle ISDUnit K-12i

72.5%1.1727%

$68.2M levied

Sanger ISDUnit K-12i

70.7%1.1434%

$24.3M levied

Lewisville ISDUnit K-12i

69.1%1.1178%

$634.2M levied

Northwest ISDUnit K-12i

67%1.0841%

$235.0M levied

Frisco ISDUnit K-12i

63%1.0194%

$202.8M levied

Slidell ISDUnit K-12i

60.1%0.9726%

$996K levied

Carrollton-Farmers Branch ISDUnit K-12i

58.6%0.9481%

$52.8M levied

Pilot Point ISDUnit K-12i

58%0.9382%

$12.3M levied

Era ISDUnit K-12i

50.3%0.8131%

$12K levied

City of Flower Moundi

23.9%0.3873%

$65.3M levied

Denton Countyi

11.5%0.1859%

$385.1M levied