The average Wylie home lost nearly $17,000 in assessed value this year, while Murphy homeowners saw a modest gain, according to certified 2026 taxable values the Collin Central Appraisal District released Thursday, July 23.
Wylie's total certified taxable value fell 0.93%, from $8.66 billion in 2025 to $8.58 billion, even after $70.8 million in new construction was added to the rolls. The average market value of a Wylie home dropped from $448,501 to $431,596.
Murphy moved in the opposite direction. Its certified taxable value rose 3.25%, from $3.95 billion to $4.08 billion, with $32.1 million in new construction. The average Murphy home value ticked up from $611,297 to $615,856.
The figures set the baseline for every city and school district tax rate decision this budget season. Under Texas law, taxing entities must adopt their 2026-27 rates using these certified numbers.
County grows, but home values still fall
Collin County's total certified taxable value climbed 4.43% to $280.17 billion, boosted by $7.7 billion in new property. Yet the countywide average home value still fell, from $603,190 to $588,119.
Brian Swanson, deputy chief appraiser for business operations and compliance at the appraisal district, said the growth is geographic. "We continue to see significant growth in the northern part of the county with Celina and Melissa, and now more in the east side of the county in Lavon, Nevada and Princeton," Swanson told The Wylie News.
What it means for Wylie taxpayers
Wylie residents pay property taxes to four entities: the city, Collin County, Wylie ISD, and Collin College. Wylie ISD's certified taxable value also dipped, falling 0.35% to $10.7 billion despite $174.6 million in new construction. The average home value within the district dropped from $484,637 to $471,442.
Collin College's taxable value, by contrast, rose 4.68% to $251.2 billion.
Lower assessed values don't automatically mean lower tax bills. Cities and school districts can raise their tax rates to collect the same revenue, or more, from a smaller base. Those rate decisions are expected in the coming weeks.
Murphy and Plano ISD
Murphy's gain tracks with Plano ISD, which saw a 1.91% increase in certified taxable value to $75.77 billion and $700.5 million in new construction. The average Plano ISD home value held nearly flat at $614,707, up from $613,290.
As we reported July 29, Plano ISD already adopted its $691.6 million budget, with Murphy homeowners facing an estimated $54 annual increase. The Plano ISD board is scheduled to formally set its 2026-27 tax rate at its Tuesday, Aug. 4 meeting.
No Wylie or Murphy city council tax rate hearing dates have been announced. Residents can contact the Collin Central Appraisal District at (469) 742-9200 or their city halls for updates on upcoming budget hearings.
