AI Infrastructure Meets Its First Tax Collector

The Calculus Changed on July 1

For thirty years, Northern Virginia operated on a simple deal: the state provided tax exemptions on data center equipment, operators brought capital and load, and everyone looked the other way at the grid strain. That deal cracked on July 1, 2026. Virginia Governor Abigail Spanberger signed the 2026 biennial budget into law on June 30, and with it came the first state-level consumption tax on data center electricity in US history.

Beginning July 1, 2026, each data center operator must pay an electricity consumption tax of $0.011 per kWh of electricity consumed at each Virginia data center each month. The Commonwealth preserved its sales and use tax exemption for qualifying data center equipment while the new tax applies to both utility-supplied and qualifying self-generated electricity, with an annual revenue cap and refunds if collections exceed $600 million.

A continuously operating 500 MW facility would owe roughly $48 million annually under the tax. A 100 MW colocation campus—midsize by current standards—faces roughly $9.6 million in new annual operating costs. That is not a rounding error on thin-margin infrastructure.

Why Virginia Is the Only Market That Matters Right Now

Operators cannot simply move. Virginia remains the nation's largest data center market. An estimated 70% of global internet traffic passes through it each day, and as of 2025 Northern Virginia hosts close to 50 million square feet of data center space and more than 4,900 megawatts of commissioned power. The fiber density at Ashburn is not replicated at scale anywhere else in the US. Operators running latency-sensitive workloads tied to east coast enterprise customers or federal government contracts are not comparing Virginia to Phoenix. They are deciding whether to pay the tax.

The tax amounts to a little more than a 10% increase in effective electricity rates for data centers, according to Rob Gramlich, president of Grid Strategies, a power sector consulting firm. Hyperscale operators will absorb it. Mid-market colocation players passing costs through long-term leases signed before July 1 will not.

The tax's structure betrays its target. The definition of "data center" carves out facilities whose primary function is to provide internet access service or communications service, suggesting the primary target is intended to be data centers that provide services for artificial intelligence. The legislature is taxing AI compute, not the internet.

The budget also includes a utility rate carveout for certain large-load customers, but data centers are explicitly excluded. The provision applies to manufacturing, industrial, and distribution facilities with electric demand of at least 25 MW and a workforce of at least 200 employees. Data centers generate enormous load but minimal headcount per megawatt. That ratio is now a liability.

Monterey Park: The Binary Constraint

While Virginia imposes a price, Monterey Park imposes a prohibition. Preliminary election results show more than 86% of voters supported Measure NDC, making Monterey Park the first city in the nation to enact a permanent voter-approved ban on data centers.

A tax is a cost input. A ban is an absolute constraint. Site selection models delete the location from the map entirely. Monterey Park matters less for its specific market impact—the city is not Ashburn—and more for the mechanism it validated. Voters in a Los Angeles suburb backed a permanent citywide data center ban by more than 86 percent, the first time Americans have used the ballot box to block the facilities for good.

Just days after voters approved Measure NDC, residents in neighboring San Gabriel Valley communities are pushing back against a growing wave of AI-related infrastructure projects. The organizing coalition has been explicit that Monterey Park is a template. One organizer described plans to push for a permanent ban on data centers in unincorporated Los Angeles County. That scope is materially different.

The Fiscal Trap Virginia Built for Itself

The Virginia tax contains a structural instability. Budget negotiators adopted an electricity consumption tax projected to generate about $1.2 billion over the two-year budget cycle. That projection assumes the installed capacity stays at scale. If operators shift workloads to lower-cost jurisdictions for non-latency-sensitive compute, consumption drops and revenue falls short. The state, having already spent the projected revenue on teacher raises and employee pay increases, faces pressure to raise the rate or extend the sunset.

The tax is scheduled to expire June 30, 2028, absent legislative extension. Any tax with a sunset clause and a $1.2 billion two-year revenue line develops a constituency for renewal. Operators should assume the sunset is not real.

Data centers consumed 25% of Virginia's electricity mix in 2025 and could account for 46% by 2030. That trajectory expands the base available for taxation. The political incentive to hold or increase the rate compounds as the grid share grows. Consumption taxes on fixed infrastructure with immobile customers trend upward once established.

Illinois Is Moving

Virginia is not alone. Governor JB Pritzker directed Illinois to pause processing new data center incentive agreements from July 1, while calling for rules on electricity rates, water resources, and transparency. A pause on incentives is not a tax, but it signals the same shift: data centers are no longer seen as unconditional beneficiaries of state economic development. The question of what operators owe in exchange for grid access and public infrastructure is now open in multiple jurisdictions.

What to Watch

Sequenced, in order of urgency:

1. SCC implementation rules, due within 60 days of budget passage. The State Corporation Commission must issue guidelines on reporting and payment. Watch for definitional edge cases, enforcement mechanisms, and whether self-supplied power is treated equivalently. The implementing rules will determine actual exposure for operators running on-site generation or PPAs.

2. Virginia revenue actuals vs. projection. The first full collection period covers July through September 2026, with payment due in September. Any shortfall signals operators are already shifting workloads, accelerating the doom loop.

3. Measure NDC certification and legal challenge. LA County has a 30-day canvass period, with final results expected in early July; the measure is valid 10 days after certification from the LA County Registrar. Attorney James Pugh, representing HMC Capital, threatened litigation if Monterey Park banned AI data centers outright. A legal challenge is likely. Zoning is historically durable local authority, but permanent ballot measures are less tested than council ordinances. Watch the pleading.

4. Maryland, North Carolina, and California legislative calendars. Both Mid-Atlantic states face the same fiscal pressure and data center concentration. Maryland is in the same PJM service territory. North Carolina is the second-largest growth market after Virginia. Either could introduce a consumption tax in 2027 budget cycles.

5. Hyperscaler capex announcements in Texas and Arizona. Any large commitment outside the Mid-Atlantic corridor announced in the next 90 days with explicit reference to cost structure should be read as a direct response to Virginia's tax. Operators will not say that publicly. The geography will speak for itself.

6. Unincorporated LA County data center hearings. The organizing coalition has directly targeted unincorporated Los Angeles County. A successful ordinance there would affect a land area and population orders of magnitude larger than Monterey Park. That is the California domino that matters.