Collin County Commercial Property Tax Protest Property Tax Protest

Collin County is one of the fastest-growing counties in the entire country, and commercial property values reflect that. Corporate relocations to Frisco, McKinney’s continued expansion, and the development boom in Prosper and Celina have pushed assessed values to levels that don’t always match what a property would actually sell for today.

In 2024, CCAD processed over 118,000 property tax protests — roughly 26% of all parcels in the county. 70% resulted in a reduction. Total savings across all protests hit $228 million, averaging nearly $2,000 per account. For commercial properties, where values are higher, the per-account savings are substantially larger.

The Growth Tax Problem

Here’s what makes Collin County different from most Texas counties: the growth itself is inflating your tax bill.

When PGA of America builds a headquarters in Frisco, when Goldman Sachs expands in Plano, when a new $100 million mixed-use development breaks ground in McKinney — those transactions become comparable sales that CCAD uses to value surrounding commercial properties. The problem is that a corporate headquarters transaction or a trophy development sale doesn’t represent the market value of a 10-year-old strip center two miles away.

CCAD’s mass appraisal models pull from this pool of high-profile sales and new construction, which systematically pushes up assessed values for existing commercial properties that haven’t changed at all.

Data Point	Value
Population	1.1 million+
County tax rate	$0.1425 per $100 valuation
City of Plano tax rate	$0.4301 per $100 valuation
Frisco ISD tax rate	$1.0716 per $100 valuation
Total protests filed (2024)	118,000+
Protest success rate	70% reduced
Total protest savings (2023)	$228.1 million

How CCAD Overassesses Commercial Properties

New construction comp contamination. Collin County has an outsized share of brand-new commercial development. When CCAD selects comparable sales, newly built Class A properties get mixed in with older existing inventory. Your 2008-built office building in Plano shouldn’t be compared to a 2025 spec office in Frisco’s $5 Billion Mile, but CCAD’s models don’t always make that distinction cleanly.

Rapid submarket divergence. Allen, Plano, McKinney, and Frisco are often treated as a single market in mass appraisal. In reality, a retail center in west Allen faces very different demand dynamics than one in Frisco’s Stonebriar corridor. Lumping them together inflates values for properties in softer submarkets.

Land value escalation. Raw land prices in Collin County have exploded, and that feeds through to improved property values in CCAD’s models. Even if your building hasn’t appreciated, the land under it probably has in CCAD’s records — and that pushes your total assessed value higher.

Filing Your Protest with CCAD

The deadline to file with the Collin Central Appraisal District is May 15, 2026, or 30 days from when your Notice of Appraised Value is mailed.

CCAD offers online filing through their portal at collincad.org. You can also file by mail or in person at their offices in McKinney. The online system lets you upload evidence directly and track your protest status.

CCAD’s protest process follows the standard Texas two-step: informal hearing first (negotiation with a CCAD appraiser), then ARB hearing if needed. Given the volume of protests CCAD handles, having your evidence organized and clearly presented speeds up the process significantly.

For commercial properties in Collin County, the most effective evidence typically includes recent comparable sales of similar-age and class properties (not just anything nearby), actual income and expense statements, and documentation of any physical condition issues or functional obsolescence.

Commercial Properties We Protest in Collin County

Collin County’s commercial base has matured rapidly over the past decade. The property types where we find the most overassessment:

• Office space in Plano’s Legacy West area, along the Dallas North Tollway, and in McKinney’s downtown revitalization zone
• Retail centers near Stonebriar Centre, along US-75, and in Allen’s retail corridors
• Industrial and distribution along the SH-121 corridor and east of US-75
• Medical and dental office buildings near Texas Health Presbyterian Plano and Medical City McKinney
• Hotels near the Frisco entertainment district and Legacy business area
• Restaurant and fast-casual pads throughout the county’s rapid-growth corridors
• Self-storage facilities — Collin County has seen a boom in self-storage construction, and older facilities are getting assessed at new-build rates

What You Stand to Save

With 70% of protests resulting in a reduction and average commercial savings well above $16,000 annually, the question isn’t whether you should protest — it’s why you haven’t yet.

Our fee: 30% of first-year tax savings. No reduction = no payment. We do the filing, the evidence, and the hearings while you focus on your business.

Get your free Collin County property assessment to see what your reduction looks like. Already know you want to move forward? See how we work.