What Data Centers Pay in Property Tax — and Why the Biggest Markets Pay the Most

Property tax is one of the last things on a data center developer's mind. The data shows why — and hints at when that might change.

Building tax projections for a data center client, I wanted to ground the work in something bigger than one market. So we pulled a large dataset of CoStar-tracked data center properties and went county by county through assessor and treasurer records to see how these assets are actually being taxed today — then compared the Mountain West against the two largest data center markets in the country, Virginia and Texas.

It is the rate in Texas and Colorado

Texas (2.30%) and Colorado (2.54%) levy the steepest effective rates in the set — genuine high-tax states where a $300/SF data center is taxed like prime commercial real estate, top to bottom. Colorado is the West's outlier on cost rather than value: assessor values run just $160/SF, but a 26% commercial assessment ratio (25% from 2027) against 100–150 mill levies triples the bill versus Arizona.

It is the value in California

California tops the per-SF table at $7.26 — not because the rate is high (Prop 13 keeps it near 1.2%), but because Silicon Valley value is in a league of its own at $590/SF. And Prop 13 shelters less than data center owners expect: new construction and changes of ownership reset the assessed base to market, so an asset class defined by new construction gets little benefit from the cap. It's the value, not the rate.

Capped bases and abatements pull the bottom down

Arizona (0.76%) and Oregon (0.74%) tax a capped base — Arizona's Limited Property Value and Oregon's Maximum Assessed Value — both decoupled from market. Their effective rates sit at the bottom even where market values are high.

Then come the deals. Nevada's Storey County/TRI abatements and Oregon's enterprise zones drop hyperscale campuses toward zero — Meta's Prineville campus carries roughly $2.9B of market value against about $96K of tax. Nevada's $2.93/SF blend hides the split: abated campuses run below $1/SF while unabated Las Vegas product pays $1.86/SF. At that end of the table, the deal outweighs the state — though the deals themselves are no longer guaranteed: legislative and local action in Oregon has begun winding some of those enterprise-zone programs down.

Virginia is a different animal

Virginia pairs the highest assessor values in the dataset ($848/SF) with a modest 0.81% rate — and the difference is methodology, not markets. While some states are only now seeing their first district-court decisions on data center valuation, Virginia has the density — and therefore the appeal experience and case law — to lead. Most western states still value these assets on cost per square foot; Virginia has shifted to valuation based on power capacity, and its definition of real estate captures the mechanical and electrical infrastructure that western states classify as separate personal property. Yet Virginia dominates the industry anyway.

The equipment tax is the hidden line item

Arizona, Colorado, New Mexico, Nevada, Utah, Virginia, and Wyoming all tax the servers too — and in Virginia (~$4.15/$100) and Texas, the equipment tax often exceeds the building tax. Arizona is the most favorable: qualifying equipment installed since 2022 is valued at just 2.5% of cost. In Colorado, the classification line between real and personal property — and rules like the first-use exemption for equipment in testing on January 1 — decide a meaningful share of the total burden.

Inside the Mountain West, the spread is 6×

Zoom into the Mountain West markets and the same product type diverges wildly on assessment math alone:

The coming methodology shift

One more thing this table doesn't show: it isn't stable. As other states accumulate Virginia's appraisal experience with this asset class, expect valuation methodologies to migrate toward power-capacity-based approaches — which would reshuffle the tax-per-SF rankings dramatically. Here the capped-value states have structural protection: Arizona's LPV, California's Prop 13 base, Nevada's cost formula, and Oregon's MAV all limit how fast a methodology change can reach the bill. Colorado, Utah, and Washington — market-value states with no cap — are the exposed ones. Owners there should be building their valuation-methodology defenses now, not after the first power-based assessment arrives.

What it means

For site selection, the conclusion is unambiguous: power, fiber, and speed-to-energy still outrank tax, by a wide margin. The two heaviest-tax major markets host the most capacity in the country.

For owners of standing assets, the conclusion is the opposite of complacency. A 10× spread across states — and 6× within one region — for the same product type means the assessment math, not the market, sets a large share of the operating cost. That math is arguable: valuation methodology, real-vs-personal classification, equipment depreciation schedules, and capped-base mechanics all move the bill, and most of them reward owners who engage before the numbers harden.