Protest Your Collin County Property Taxes

When is the Collin County protest deadline?

The 2027 deadline is May 17, 2027. The statutory date is May 15. May 15 falls on a Saturday in 2027, so the Tax Code moves the deadline to the next business day. If Collin CAD mails your Notice of Appraised Value late, you have 30 days from the notice instead. Notices usually go out in April. Miss the date and you generally wait a full year.

Collin County protest calendar for 2027

What do Collin County's 2026 appraisal records show?

Collin Central Appraisal District valued 347,033 homes for 2026. Compared with 2025, 29.9% were valued higher, 6.2% stayed about the same and 63.8% came down. The median home is valued at $484,757, against $492,419 a year earlier.

Who protests in Collin County?

In 2026, 68.8% of homes were not protested at all. 26.5% were protested through a tax agent and 4.7% by the owner directly. Among homes that were protested, 84.9% had a tax agent on file.

How often does Collin CAD lower a value after the notice?

In 2026, 16.5% of Collin County homes ended up with a lower appraised value than the one on their spring notice, by a median of 2.5%. Almost all of those reductions came from protests: homes that were not protested were rarely lowered.

The 10% homestead cap

Texas caps the taxable value of a homestead at 110% of last year's taxable value. In 2026, 9.7% of Collin County homes had a taxable value held below market value by the cap, by a median of $37,074. For those owners a lower market value may not change the tax bill at all, which is why we measure savings in taxable value. 74.4% of homes carry a homestead exemption.

Collin County by city

Twelve largest Collin County cities by number of homes. Change is measured against each home's 2025 market value.

By year built

How does a Collin CAD protest work?

A Collin County property tax protest runs in two stages, and most never reach the second one. Some owners call it a property tax appeal or simply a Collin CAD protest; in Texas the formal term is a protest, and it is filed with Collin CAD, not the tax office.

What evidence lowers a Collin CAD value?

Two arguments do the work. Equity means comparable homes in your neighborhood appraised for less per square foot than yours. Sales means recent arm's length sales of similar homes below your appraised value. Condition problems such as foundation damage, deferred maintenance or flood exposure can support a further reduction when documented. We build both cases from Collin CAD's own records.

Which Collin County cities does Bezit cover?

Bezit represents residential owners anywhere Collin CAD appraises, including Plano, McKinney, Frisco, Allen, Princeton, Wylie, Celina, Anna, Prosper, Dallas (Collin County part), Melissa and Richardson. Tax rates differ from one city and school district to the next, so the same reduction is worth more in some parts of the county than others.

Just bought in Collin County?

The first year is usually the most valuable one to protest. A recent purchase price below the appraised value is among the strongest evidence available, and new owners frequently have not yet filed a homestead exemption.

The general residence homestead exemption for school district taxes is now $140,000, raised from $100,000 by Proposition 13, which Texas voters approved on November 4, 2025. School taxes are the largest slice of a Texas tax bill, which makes this the most valuable exemption most homeowners can claim, and it also caps annual growth in your taxable value at 10%. Bezit files your homestead exemption free of charge, whether or not you protest with us.

How much does Bezit charge in Collin County?

Need help with your Collin County property taxes? A licensed property tax consultant handles your protest from filing to the hearing, so you never have to argue the case yourself.

Bezit charges 10% of the property tax you actually save. There is no upfront cost, no signup fee and no minimum charge. If your tax bill does not go down, you owe nothing. Fee levels matter more than headline results, because what you keep is the reduction minus the fee. See full pricing.

Take a $600 a year reduction as an example. Published fees at other protest firms serving North Texas run from 25% to 50% of the first year's saving. The table shows what the owner keeps from that same saving at each fee level.

$600 is an illustration, not a Collin County result. Bezit's measured results are on the Denton County page. Other firms' fee levels are as published on their own websites in September 2026 and may vary by area.

When are Collin County property tax bills due?

The Collin County Tax Assessor-Collector mails bills in October, and they are due when you receive them. You can pay without penalty or interest until January 31. From the next day penalty and interest start at 7% and rise every month.

Homeowners who are 65 or older, or disabled, can pay their homestead taxes in four installments without penalty: January 31, March 31, May 31 and July 31. Missing an installment brings the full penalty. You can pay online, by mail or in person, and the Collin County Tax Assessor-Collector shows your current statement. To see every taxing entity on your bill, use the Bezit property tax bill lookup.

Where are Collin County protests filed?

Collin CAD sets the value your Collin County tax bill is based on and is where every protest is filed and heard.

Statewide rules for property tax protests are on the Texas Comptroller's appraisal protests and appeals page.

Protests in nearby counties

• Dallas County property tax protest
• Denton County property tax protest
• Tarrant County property tax protest

Start from the Texas property tax protest service page for any county.

More guides for Collin County homeowners

Collin County FAQs

More questions about protesting in Texas? See the property tax protest FAQs.