Question 1

When did the $140,000 Texas school homestead exemption take effect?

Accepted Answer

Tax year 2025, not 2026. Texas SB 4 raised the school district homestead exemption from $100,000 to $140,000 and it applied to tax years beginning January 1, 2025. Voters confirmed it as Proposition 13 on November 4, 2025. It was already reflected on 2025 tax bills, and applies to every school district in Collin, Dallas, Denton and Tarrant counties.

Question 2

Which DFW cities are in two counties?

Accepted Answer

Southlake, Westlake, Trophy Club, Flower Mound and Roanoke all straddle the Tarrant and Denton county line. The tax difference is significant because Tarrant County's county-wide stack totals 0.489980 per $100 (county, JPS Health Network, Tarrant County College and Tarrant Regional Water District) while Denton County's is 0.185938 with no hospital or college district. On a $3,000,000 Westlake home in Carroll ISD the difference is about $9,121 per year.

Question 3

What is the 2025 Southlake property tax rate?

Accepted Answer

The City of Southlake 2025 tax rate is 0.295000 per $100 with a 20% homestead exemption. Carroll ISD is 0.929400 per $100 with a $140,000 state homestead exemption. Most of Southlake is in Tarrant County, which adds a county-wide stack of 0.489980.

Question 4

What is the 2025 Flower Mound homestead exemption?

Accepted Answer

20%. The Flower Mound Town Council voted unanimously on June 16, 2025 to raise the town's homestead exemption from 12.5% to 20%, the maximum allowed for a Texas municipality, effective on 2025 tax bills. Because the change was made mid-year, some published rate tables still list the older 12.5% figure.

Question 5

What is the 2025 Colleyville homestead exemption?

Accepted Answer

14%. Colleyville City Council approved a 7 point increase on June 3, 2025, raising the city's homestead exemption from 7% to 14% for 2025 residential property taxes. The City of Colleyville 2025 tax rate is 0.311931 per $100.

Question 6

Do Dallas ISD and Highland Park ISD have extra homestead exemptions?

Accepted Answer

Yes. Dallas ISD adds a 10% local optional homestead exemption on top of the $140,000 state exemption, and Highland Park ISD adds 20%. No Collin County or Denton County school district does this. On a $1,234,567 home in Dallas ISD the total school exemption is $263,456, which is $140,000 plus 10% of the value.

Question 7

Why does a MUD matter so much on a Texas property tax bill?

Accepted Answer

MUD, PID and water district rates in the DFW area range from about 0.068 to 1.20 per $100. Collin County Water District #3 is 0.893700, which costs $8,937 per year on a $1,000,000 home, more than that home's Frisco ISD line. There is no public map of MUD boundaries, so an address lookup cannot reliably identify them. Newer developments usually have one.

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