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.

Southmayd, 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

2.00%–2.31%+0.6%YoY

Varies by school district

Municipal Portioni

0.6255%+4%YoY29% of total

Effective Ratei

2.00%–2.31%

Est. Annual Taxi

$3K–$4K

Median Home Valuei

$164,000

Total Leviedi

$352.0M

Tax Per Capitai

$485

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

$0.57 Sherman ISD

$0.57 Howe ISD

$0.57 Tioga ISD

$0.56 Trenton ISD

$0.55 Gunter ISD

$0.55 Van Alstyne ISD

$0.54 Denison ISD

$0.53 Bells ISD

$0.53 Collinsville ISD

$0.53 Whitesboro ISD

$0.47 S and S CISD

$0.45 Whitewright ISD

$0.43 Pilot Point ISD

$0.43 Pottsboro ISD

$0.43 Tom Bean ISD

$0.29 City of Southmayd

$0.14 Grayson County

$0.07 Grayson County Junior College District

Estimated Tax by Home Valuei

$50K

$1,000–$1,155

$100K

$2,001–$2,311

$150K

$3,001–$3,466

$200K

$4,001–$4,622

$250K

$5,001–$5,777

$300K

$6,002–$6,932

$350K

$7,002–$8,088

Highlighted value is closest to median home value ($164K)

18 Overlapping Taxing Districtsi

Sherman ISDUnit K-12i

57.3%1.2342%

$98.0M levied

Howe ISDUnit K-12i

57.2%1.2340%

$7.3M levied

Tioga ISDUnit K-12i

56.9%1.2269%

$2.8M levied

Trenton ISDUnit K-12i

56%1.2072%

$198K levied

Gunter ISDUnit K-12i

55.1%1.1872%

$13.6M levied

Van Alstyne ISDUnit K-12i

54.5%1.1748%

$24.3M levied

Denison ISDUnit K-12i

53.6%1.1550%

$37.9M levied

Bells ISDUnit K-12i

52.7%1.1363%

$4.7M levied

Collinsville ISDUnit K-12i

52.7%1.1352%

$4.3M levied

Whitesboro ISDUnit K-12i

52.5%1.1312%

$15.3M levied

S and S CISDUnit K-12i

46.7%1.0070%

$8.1M levied

Whitewright ISDUnit K-12i

45.4%0.9781%

$4.0M levied

Pilot Point ISDUnit K-12i

43.5%0.9382%

$781K levied

Pottsboro ISDUnit K-12i

43.3%0.9344%

$16.3M levied

Tom Bean ISDUnit K-12i

42.9%0.9239%

$4.1M levied

City of Southmaydi

29%0.6255%

$686K levied

Grayson Countyi

14.2%0.3051%

$70.1M levied

Grayson County Junior College Districti

6.8%0.1460%

$39.5M levied