Senate Democrats say data center tax breaks are costing billions

Three Senate Democrats want to know who is really paying for the AI construction boom. Their answer: state and local governments, which they estimate have given up billions in tax revenue to bring data centers to town.

Senators Elizabeth Warren, Chris Van Hollen, and Richard Blumenthal released the report on October 9, 2026. It is titled Power and Profits: How the AI Data Center Boom Costs Households and Communities.

What the senators found

The central finding is that tax breaks for building data centers have drained billions from public budgets, according to the report’s estimate. That money did not disappear. It stayed with the companies doing the building.

The investigation focused on seven firms: Amazon, Google parent Alphabet, Meta, Microsoft, CoreWeave, Digital Realty, and Equinix.

According to the report, these companies actively pursue sales tax exemptions and other subsidies from state and local governments. What they did not provide, the senators say, was comprehensive data on job creation to justify those incentives.

The report also flags a transparency problem. Many of the companies ask local authorities to sign nondisclosure agreements, which limits how much the public can learn about projects going up in their own neighborhoods.

The senators also argue that the benefits flow mostly to tech giants while communities carry the costs. Energy infrastructure gets particular attention in the report.

The federal side of the ledger

The state and local incentives are only part of the story. The report’s findings dovetail with ongoing Democratic criticism of the 2025 “One Big Beautiful Bill Act,” whose tax provisions reduced corporate tax liabilities for the large cloud and AI spenders often called hyperscalers.

Meta offers the starkest example in the research. The company’s federal income tax fell to $2.8 billion in 2025, down from $9.6 billion in 2024.

In September 2026, Democrats asked major tech companies for details on their tax deductions and lobbying activity as part of a broader look at the sector. The October report shifts the focus from federal tax law to the incentives handed out at the state and local level.

A boom measured in hundreds of billions

Data center construction in the US has quadrupled over four years, according to the research behind the report.

Hyperscaler spending is expected to reach $700 billion in 2026.

States and towns compete for these projects, and incentives are one of the main tools they use to win. The report questions whether governments are getting enough back for what they give up.

What this means for companies, communities, and investors

For the companies named, the report could signal increased regulatory attention and possible legislative efforts aimed at tech company tax incentives and their economic effects.

The firms may face more pressure to disclose job creation figures and the terms of their local agreements, including the NDAs the report criticizes.

Energy infrastructure costs and electricity rates are where data center growth hits household budgets most directly, and the report frames that as a cost borne locally while the gains accrue elsewhere.

For state and local officials, if companies are not providing comprehensive job data, officials may struggle to defend incentives they have already approved.

The things to watch next are whether any state revisits its sales tax exemptions for data centers, whether the named companies release the job creation data the senators say is missing, and whether Democrats turn the findings into proposed legislation targeting the incentives or the 2025 tax provisions.