Ohio suspends data center tax break after costs explode to $1.5 billion, 11x initial estimate

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Republican Gov. Mike DeWine has suspended Ohio's data center tax break after costs skyrocketed to nearly $1.6 billion in 2025—far exceeding the projected $142 million. The move reflects growing public opposition to energy-intensive AI data centers and mounting pressure on states to reconsider tax incentives that were designed before the AI boom transformed the industry.

Ohio Data Center Tax Break Suspended Amid Skyrocketing Cost

Republican Gov. Mike DeWine announced Wednesday that Ohio is pausing its data center tax break for new applicants, a decision driven by costs that have spiraled far beyond initial projections

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. The state had projected the exemption would total $136 million in fiscal 2025 and $142 million in fiscal 2026, based on previous history. Instead, the tax break reached $554 million in 2024 and nearly $1.6 billion in 2025

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. This dramatic escalation—more than 11 times the initial estimate—has forced state officials to reassess their approach to attracting tech investments in AI infrastructure.

Source: Seattle Times

Source: Seattle Times

DeWine's spokesperson, Dan Tierney, explained that the governor felt it was the right time to inform citizens and businesses about the pause while a legislative committee studies the impact of data center development

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. Despite the suspension, DeWine stressed his support for data centers, calling them a critical component in today's economy and noting that roughly $37 billion in data center-related investment flowed into Ohio during 2024 and 2025

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Growing Public Opposition to Hyperscale Data Centers

The decision to suspend the tax incentives for data centers comes as opposition to energy-intensive AI data centers sweeps through cities, suburbs, and towns across Ohio. Residents are attempting to bypass the GOP-controlled Legislature by pursuing a citizen-led initiative to permanently ban hyperscale data centers statewide—potentially the strictest such ban under consideration in the U.S.

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. The referendum faces a July 1 deadline to gather more than 400,000 voter signatures for placement on November's midterm election ballot

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Lawmakers acknowledged this public opposition when announcing their joint data center committee on May 13. State Rep. Adam Holmes told a news conference that the legislative committee's mission is to ensure Ohioans have accurate information about the economic impact, environmental effects, and security implications of data center development

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. "We're well aware of initiatives to limit Ohio data center development during this critical point in America's history," Holmes said. "This public concern has become a priority issue for us and could have dramatic impact on Ohio and America's future."

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Business Groups and Labor Unions Express Concerns

The Ohio suspends data center tax break decision caught many stakeholders by surprise. Business groups, including the state Chamber of Commerce, and labor unions warned that pausing the tax break puts Ohio at risk of losing tech-sector investments to other states

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. Dorsey Hager, executive secretary-treasurer of the Columbus/Central Ohio Building and Construction Trades Council, where union members spend much of their time on data center projects, said he was upset with Mike DeWine and trying to understand the governor's reasons

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. Hager worried that developers in the midst of finalizing plans or permits for a project might have second thoughts.

Ohio's exemption is fairly broad, applying not only to construction materials but also to expensive equipment such as server racks and cooling systems used in data centers. Operators might buy new server racks every couple of years as the technology improves, contributing to the high energy consumption and escalating costs

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Nationwide Pressure on Cost to Power AI

Ohio's move reflects a broader trend as state tax breaks for the massive data center industry face growing criticism by governors and lawmakers nationwide. Thirty-eight states have some form of a sales tax break for data centers, according to the National Conference of State Legislatures

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. Many were approved when data centers were a small but growing part of the economy, well before the late 2022 debut of OpenAI's ChatGPT launched an intensifying buildout of increasingly large data centers

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In Virginia, budget negotiations have been hung up for months on a bid by Senate Democrats to eliminate the roughly $1.6 billion annual tax break

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. The cost is likely rising as data center and AI-related investments drive higher consumer spending in the U.S. and tech giants keep boosting their spending commitment to hyperscale data centers

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Political Implications and Future Outlook

The resumption of Ohio's tax break—should it resume—could happen under a new governor, as DeWine is term-limited and the race is on to replace him. Republican nominee Vivek Ramaswamy, an Ivy League-educated biotech billionaire, likes to talk about turning the Ohio River Valley into the next Silicon Valley

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. However, both Ramaswamy and Democratic nominee Amy Acton could share the midterm ballot in November with the citizen-led drive to ban new construction of large data centers across Ohio

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The pause on tax incentives for data centers signals a potential shift in how states balance the economic benefits of attracting AI infrastructure against the fiscal burden and environmental concerns raised by energy-hungry facilities. As the legislative committee conducts its study, stakeholders will watch closely to see whether Ohio modifies its approach or reinstates the tax break, and how this decision influences other states grappling with similar tensions between tech industry growth and community interests.

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