Collin County Commercial Property Tax Protest

The Frisco Boom and Your Tax Bill

Collin County is America’s fastest-growing county, and that growth comes with a price—often reflected in skyrocketing property tax assessments. If you own commercial real estate in Frisco, McKinney, Plano, or anywhere across the Collin Central Appraisal District (CCAD), you’ve likely noticed your tax bills climbing faster than your actual property income.

The numbers tell the story: Over 118,000 property protests have been filed in Collin County, representing 26% of all parcels in the jurisdiction. Property tax protests frequently result in value reductions. That’s not coincidence—it’s evidence of a systematic overassessment problem driven by explosive growth and aggressive appraisal methodology.

This guide walks you through one owner’s journey fighting back against inflated assessments—and how you can too.

The Case: A Retail Strip Center in McKinney

Let’s follow the story of a commercial property investor who owns a well-maintained retail strip center in McKinney, one of the county’s most dynamic growth corridors. This property had been generating solid rental income for eight years, with stable tenant occupancy and predictable revenue streams.

In January 2026, the owner opened the CCAD assessment notice and felt their stomach drop. The appraised value had jumped from $2.8 million to $3.6 million—a 28% increase in a single year. The property’s physical condition hadn’t changed. The rental rates hadn’t spiked. Yet the tax assessment had nearly crossed into a new income tax bracket.

The owner’s first instinct was to panic. A $3.6 million value translates to approximately $72,000 to $97,200 in annual property taxes at Collin County’s effective rates of 2.0% to 2.7%. The $800,000 increase in assessed value meant an additional $16,000 to $21,600 per year in taxes—indefinitely.

But here’s what many property owners don’t realize: that assessment was likely wrong.

Why Collin County Overassesses Commercial Property

The root cause traces to Collin County’s explosive growth and how appraisers respond to it. When new construction and market activity surge, appraisers often rely too heavily on sales of new properties in hot markets like Frisco and the Legacy West corridor in Plano. These new buildings command premium prices because they offer modern amenities, lower capital expenditure needs, and brand-new tenant leases at market rates.

Existing commercial properties—including well-maintained but older strip centers, office parks, and industrial facilities—get benchmarked against these new comps incorrectly. An appraiser might say, “New retail space in McKinney is selling at $150 per square foot, so your 12-year-old strip center with a vacated space must be worth the same.” But that logic ignores the reality of:

• Capital expenditure requirements for aging HVAC, roof, or electrical systems
• Tenant turnover and re-leasing costs
• Market cap rate compression (more buyers pushing prices up, but cash returns staying flat or declining)
• Actual revenue generated versus theoretical replacement cost

In Collin County, this problem compounds year over year. The PGA of America’s move to Frisco, corporate headquarters relocations to Plano’s Legacy West, and continuous suburban expansion into Prosper, Celina, and Allen create a psychological “everything is up” mentality that filters into appraisal offices.

Consider the specific submarkets:

Frisco: Home to the PGA of America headquarters and attracted by the Dallas Cowboys’ practice facility proximity, Frisco has become a magnet for corporate relocation. New office buildings with Class A amenities regularly appraise at $25–$35 per square foot on a capitalization basis. An older office park two miles away gets hit with the same methodology, even though its tenant credit quality, remaining lease terms, and capital needs are entirely different.

McKinney: The historic downtown revival has created real value, but CCAD often applies downtown-adjacent pricing to conventional retail strips several miles away. Legacy properties that serve neighborhood needs get assessed as if they’re part of the high-growth core.

Plano: Legacy West commands premium cap rates around 5.5%–6.0% due to corporate tenant stability and location prestige. Older flex industrial and mixed-use properties throughout Plano get pressed into the same framework, pushing down their appraised cap rates below 6.5% or 7.0%—levels that don’t reflect realistic investor returns.

Allen, Prosper, and Celina: Rapid suburban expansion creates assessment whiplash. Properties assessed three years ago at one level suddenly “deserve” 15% premiums because new construction is nearby, even though the property’s actual income and tenant base haven’t budged.

The result: property owners like our McKinney retail owner face inflated assessments that don’t reflect the income their properties actually generate or the risk-adjusted returns investors would demand.

How the Owner Fought Back

Our McKinney property owner didn’t accept the $3.6 million appraisal. Here’s the process they followed:

Step 1: Gather Financial Documentation

The owner compiled three years of actual rent rolls, lease agreements, and income statements. The property generated approximately $320,000 in annual gross rental income. Operating expenses (property taxes, insurance, maintenance, utilities, management) ran roughly 35% of income, leaving net operating income of about $208,000.

Using a 5.8% capitalization rate—appropriate for a well-maintained retail property in McKinney with stable tenants and predictable income—the owner calculated a supportable value of approximately $3.59 million. That seemed to match the appraisal. But the critical step came next.

Step 2: Challenge the Cap Rate

The owner obtained comparable sales data and appraisal reports for similar properties that had actually sold in North Texas. A retail strip center three miles away had sold six months prior at a 6.3% cap rate. Another similar property in Allen had traded at 6.7%. The investor-grade comparables didn’t support CCAD’s implied 5.4% cap rate on the McKinney property.

Step 3: Document Deferred Maintenance and Capital Needs

A professional property inspection identified approximately $85,000 in deferred maintenance and capital expenditure needs over the next five years. The roof required replacement within three years. HVAC systems were aging. These are real costs that reduce net cash flow. When incorporated into the valuation model, they justified a lower value.

Step 4: File the Protest with CCAD

The owner prepared a formal protest letter citing comparable sales, cap rate analysis, and the property’s actual income statement. The protest was filed with CCAD before the May 15 deadline with supporting exhibits. CCAD’s informal review process offers a chance to resolve disputes without formal hearing.

Step 5: Represent at Formal Hearing

When CCAD’s informal process didn’t yield a satisfactory reduction, the owner moved to a formal hearing before CCAD’s appraisal review board (ARB). Presenting the income approach to value, comparable sales evidence, and the property’s actual operating metrics, the owner’s position proved compelling.

CCAD ultimately reduced the value to $3.15 million—a $450,000 reduction. At Collin County’s effective tax rate of 2.3%, that translates to $10,350 in annual tax savings. Over a five-year hold period, that’s $51,750 recovered.

What Makes Collin County Protests Winnable

Three factors make a strong case in Collin County:

1. Income Approach is King in a Growth Market

CCAD appraisers often lean on cost and market approaches, but they don’t always reconcile those with actual income. A commercial owner who presents three years of documented rental income and legitimate cap rate comparables has the strongest evidence available. In Collin County’s heated growth environment, showing that a property’s actual NOI doesn’t support a premium valuation is particularly persuasive.

2. Comparable Sales Data Favors Existing Properties

While new construction comps are abundant in Frisco, McKinney, and Plano, they’re not the right comparables for older stabilized properties. By identifying truly comparable sales—similar age, condition, tenant profile, location—owners can demonstrate that CCAD’s valuation overreaches. Plano mixed-use properties, McKinney retail strips, and Allen office parks all have genuine comparable sales that don’t support inflated assessments.

3. Cap Rate Compression is Quantifiable

Collin County’s rapid growth has attracted institutional capital, pushing cap rates lower than historical norms. But not all properties participate equally in that compression. An older industrial park doesn’t trade at the same cap rate as new flex space on the Dallas North Tollway. Owners who quantify realistic cap rates using actual sales earn significant credibility.

Collin County’s Tax Landscape and Your Exposure

Understanding Collin County’s tax rate structure is critical to calculating your exposure and potential savings.

Effective Tax Rates: Collin County’s combined effective tax rate for commercial property ranges from 2.0% to 2.7%, depending on specific location, school district, and local jurisdiction overlays. City of Frisco tends toward the higher end; more rural areas like Celina, Prosper, and outer Plano run lower.

Impact on Different Property Types:

• Corporate Office: A Class B office building in Plano assessed at $5 million faces roughly $100,000–$135,000 in annual taxes. A 10% assessment reduction saves $10,000–$13,500 yearly.
• Retail Strip Center: A $3.5 million property assessment generates $70,000–$94,500 in taxes. The McKinney owner’s $450,000 reduction saved approximately $10,350 annually.
• Medical Office: Specialized properties in McKinney or Frisco assessed at $2.8 million pay $56,000–$75,600 in taxes. Medical properties often see overvaluation because appraisers misapply healthcare real estate benchmarks.
• Mixed-Use Development: Newer mixed-use properties in Plano’s Legacy West or McKinney’s downtown districts are frequently overvalued because sales comps are themselves inflated. Protest success rates are high.
• Industrial Flex: New industrial space on US-75 or the Dallas North Tollway may be correctly valued, but older industrial properties often see unjustified increases when appraised against new-building comparables.

The CCAD Process and Your Timeline

Collin Central Appraisal District operates on a strict calendar. Missing deadlines means losing your right to protest, so timing is critical.

Key Dates:

• Mid-April: CCAD mails annual appraisal notices
• May 15: Informal protest filing deadline
• June–July: Informal review and ARB hearing scheduling
• July–August: Appraisal Review Board formal hearings
• September 1: Final assessed values become effective

The informal protest process at CCAD is where many disputes resolve. If you file before May 15, CCAD staff will review your evidence. For straightforward cases with solid comparables, this often produces reasonable settlements without formal hearings.

If CCAD denies your informal protest or the reduction is insufficient, the ARB hearing becomes essential. This is where presentation quality matters—documented evidence, prepared exhibits, and clarity about valuation methodology win cases.

Common Overvaluation Scenarios in Collin County

Scenario A: New Construction Comp Bias

A medical office building in McKinney was assessed at $4.2 million based primarily on a comparable sale of new medical office space in Frisco that traded at $55 per square foot. The McKinney property, built in 2008 with good tenant quality, actually warranted $47 per square foot when capital needs were factored. The owner protested, presented medical office market data for stabilized (not new) properties, and achieved a $360,000 reduction.

Scenario B: Cap Rate Compression Overreach

An office park in Plano with solid credit tenants was appraised at a 5.4% cap rate. While new institutional-quality properties in Legacy West trade at 5.5%–5.7%, the subject property’s lease roll was shorter and tenant diversity lower. At a more realistic 6.1% cap rate, the property’s value dropped by $380,000. The owner’s protest succeeded based on lease-term and tenant-quality adjustments.

Scenario C: Proximity to Growth Inflates Value

A conventional retail strip in Allen experienced a 22% value jump because new retail construction was planned within two miles. However, the property’s rental rates and tenant profile hadn’t changed. The “proximity to growth” adjustment lacked supportive evidence. Protest resulted in a $420,000 reduction.

Scenario D: Deferred Maintenance Ignored

A mixed-use property in Celina required $120,000 in capital expenditures within the next three years (roof, parking lot, HVAC). CCAD’s appraisal didn’t adequately account for these costs. The owner’s engineer’s report and capital reserve analysis led to a $290,000 reduction.

Should You Protest? The Economics

Here’s a straightforward decision framework:

1. Calculate your annual tax exposure: Multiply your assessed value by your effective tax rate (typically 2.0%–2.7% in Collin County).
2. Estimate a realistic reduction percentage: If your property is legitimately overvalued compared to true market income and comparable sales, expect 8%–15% reductions to be achievable.
3. Calculate annual savings: Multiply the reduction amount by your tax rate.
4. Assess the effort: For most commercial properties, the analysis takes 10–20 hours if you DIY, or professional service fees of 30% of first-year savings if you engage representation.

Example:

• Assessed value: $3.5 million
• Annual taxes: $80,500 (at 2.3%)
• Realistic reduction: 12% = $420,000
• Annual tax savings: $9,660
• First-year savings at 30% fee: $2,898
• Net benefit: $6,762 in year one, $9,660 every year after

For most commercial properties in Collin County, protesting is economically rational if you have legitimate valuation concerns.

Why Property Tax Protests Matter in Collin County

Property tax protests frequently result in reductions, which reflects a systematic problem: CCAD’s appraisals often exceed justified market value. This isn’t malice; it’s a result of growth-driven methodology and appraisers who are inundated with work during Collin County’s explosive expansion.

The 118,000+ protests filed and $228 million in total recovery demonstrate that educated, prepared property owners consistently prevail. You’re not fighting an entrenched system that always wins; you’re engaging with an appraisal process that has significant built-in overvaluation and responds to evidence.

Regional Context: How Collin Compares

Collin County’s active protest market reflects strong opportunities for commercial property owners. Dallas County sees similar growth pressure but with more diverse property types and submarkets, while Tarrant County has different dynamics in Fort Worth core markets and suburban areas like Arlington.

Collin County’s advantage: clear growth drivers, identifiable comparable sales, and straightforward cap rate analysis. Your evidence is concrete and measurable.

Building Your Protest Case

If you own commercial property in Collin County and suspect overvaluation, here’s what you need:

Financial Documentation:

• Three years of actual rent rolls and lease agreements
• Operating expense statements
• Tenant credit quality assessment
• Lease term analysis (weighted average remaining term)

Market Evidence:

• Comparable sales of similar properties (last 12–24 months)
• Comparable lease data from CoStar, LoopNet, or broker reports
• Published market cap rate reports for your property type and location
• Market rent and occupancy trends

Property-Specific Evidence:

• Professional property condition assessment
• Capital expenditure reserve analysis
• Rent-growth assumptions vs. market norms
• Lease rollover risks or tenant credit concerns

Valuation Support:

• Income approach to value (DCF or direct capitalization)
• Comparable sales reconciliation
• Explicit cap rate analysis with market support

If you’re uncertain about assembling this evidence or presenting it effectively, professional representation through an experienced commercial tax consultant increases success likelihood and saves time.

Working with Legal and Tax Counsel

For higher-value properties or complex situations, involving a property tax attorney or CPA is prudent. They can ensure your protest is procedurally perfect, coordinate with appraisers in informal discussions, and represent you at ARB hearings if necessary.

The contingency model—paying only if you win and at a percentage of first-year savings—aligns the incentive structure. Your advisor succeeds only if they reduce your assessment. For a property where 15% reductions are realistic, the economics work strongly in your favor.

The Timeline to Recovery

From assessment notice to final reduced value typically takes 90–120 days if you move promptly:

• April–May 15: File informal protest with CCAD
• May 25–June 30: CCAD reviews evidence; you may meet with appraiser
• July–August: If unresolved, move to ARB hearing
• September 1: Final value becomes official
• October 1–December 31: First-year tax savings realized

For owners who file immediately after receiving appraisal notice, this timeline means tax year 2026 savings are achievable this year.

About the Author

Mike VanVickle is the founder of LowerMyCommercialTax.com, an independent resource for Texas commercial property tax education. He writes plain-English guides to the protest process under Texas Tax Code Chapter 41 and helps commercial property owners prepare and file their own protests in counties across the state.

Sources

• Collin Central Appraisal District (CCAD), https://collincad.org
• Collin County Property Tax Protest Data, 2024 Annual Report
• CoStar Market Reports, North Texas Commercial Real Estate, 2024–2026
• Texas Property Tax Code, Chapter 41–42 (Property Tax Administration and Appraisal Review)
• National Council of Real Estate Investment Fiduciaries (NCREIF), Cap Rate Survey, 2025
• Real Capital Analytics, Dallas–Fort Worth Office and Retail Market Reports, 2025–2026
• Texas Appraisal Foundation, Commercial Appraisal Methodology Guidelines

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Ready to challenge your Collin County assessment? Contact us at /contact/ for a free evaluation of your property’s value. If we believe your assessment is inflated, we’ll represent you—at no upfront cost.

For more on commercial property tax protest strategy, read How to Protest Commercial Property Tax in Texas.