Wylie homeowners face May 15 deadline to protest property values

A higher appraisal could have raised the tax bill on a Wylie home for the city, Collin County, Wylie Independent School District and Collin College, and the window to challenge those numbers closed May 15 with Collin Central Appraisal District.

The district mailed 2026 notices of appraised value for real property on April 15, which gave homeowners a little more than a month to decide whether to protest. The same spring deadline also collided with homestead exemption paperwork, since the general filing deadline for a residence homestead exemption was April 30. Collin Central Appraisal District says homeowners must confirm the house was their primary residence on January 1, and late filing provisions can apply in some cases.

In Wylie, the numbers did not point to a fresh surge in value. The 2026 estimated average market value of a home fell to $433,200 from $447,679 in 2025. Inside Wylie ISD, the average estimated market value dropped to $473,527 from $483,634. The district’s estimated taxable value also slipped 1.63 percent to $10.81 billion, even as $180.7 million in new construction was added.

The broader Collin County picture still showed growth, just at a slower pace than the year before. County property values continued to rise in 2026, and total estimated property values reached $272.8 billion, with about $7.87 billion in new construction added to the tax rolls. That meant many taxpayers were still confronting high appraisals even in places where the pace of increase had eased.

Owners who believed the appraisal was too high had two basic routes: file through the online eFile system or send a written protest by mail or in person. The Collin Appraisal Review Board says a timely protest had to be postmarked or hand-delivered by May 15, or by the deadline shown on the notice of appraised value, whichever applied. The district also says owners can protest appraised value, exemptions, special appraisal and errors, making the filing deadline a critical step for anyone trying to keep a tax bill from climbing.