Complete guide to protesting your Collin County property taxes in 2026. Beat CCAD with comparable sales evidence. Covers Plano, Frisco, McKinney, Allen, Celina, and all Collin County cities.
The Collin Central Appraisal District is responsible for valuing all real property in Collin County as of January 1st each year. CCAD uses computer-assisted mass appraisal (CAMA) âÃÂàthe same statistical modeling approach used by all Texas appraisal districts. In Collin County's high-value, fast-moving market, CAMA models are particularly prone to error because they rely on broad neighborhood averages that mask significant property-to-property variation. A home on a busy collector road in Frisco may be grouped with interior-lot homes and overvalued accordingly. New construction in rapid-growth areas like Celina and Prosper creates comp scarcity that leads to inflated model estimates. CCAD is legally required to value every property at 100% of its January 1st fair market value âÃÂàif their estimate exceeds what your home would actually sell for, you have grounds to protest.
CCAD mails Notices of Appraised Value in April each year. Your protest deadline is the later of May 15, 2026, or 30 days from the date printed on your notice. Collin County is one of the highest-protest-volume counties in Texas âÃÂàCCAD informal hearings fill quickly. Filing early is strongly recommended.
Collin County experienced some of the most explosive appreciation in Texas from 2020 to 2022 âÃÂàFrisco and McKinney regularly appeared on national lists of fastest-appreciating markets. Median home prices in many Collin County submarkets rose 40-55% during this period. The correction that followed was equally sharp in some areas, with prices declining 10-20% from peak in certain zip codes as interest rates rose and inventory built up. CCAD's 2026 assessments, based on January 1, 2026 market conditions, may still reflect inflated 2022-2023 values in many areas. If your neighbors' homes have sold recently for less than your assessed value, you have a strong protest.
The Collin Central Appraisal District covers all municipalities within Collin County, including Plano (Collin County portions), Frisco (Collin County portions), McKinney, Allen, Celina, Prosper, Wylie, Murphy, Sachse, Fairview, Lucas, Anna, Blue Ridge, Farmersville, Lavon, Lowry Crossing, Melissa, Nevada, New Hope, Parker, Princeton, Royse City (Collin County portions), St. Paul, Van Alstyne, and Weston. Note that Plano and Frisco extend into both Collin and Denton counties âÃÂàcheck your notice to confirm your appraisal district.
The strongest CCAD protests are built on comparable sales evidence âÃÂàrecent sales of similar homes in your specific neighborhood that closed for less than your assessed value. Collin County's variety of price points and submarkets means hyper-local comps are more persuasive than broad county averages.
Given Collin County's high property values, contingency fees are especially costly. At 25% of savings, a $2,200 annual reduction costs $550 in fees âÃÂàevery year you re-file with a contingency firm. At 50%, it's $1,100. TaxAppeal charges $79 flat. On the same $2,200 reduction, you keep $2,121 instead of $1,100âÃÂÃÂ$1,650. The higher your Collin County assessment, the more a flat fee saves you.
$79 flat fee. We handle everything. You keep 100% of your savings.