Ohio, a prominent destination for data centers across the nation, has announced the suspension of a crucial tax break that has been instrumental in attracting these massive new facilities, particularly those powering and training artificial intelligence (AI) chatbots. Republican Governor Mike DeWine issued the directive on Wednesday, amidst increasing scrutiny of state tax breaks for energy-intensive AI data centers and mounting pressure on the industry to cover the full costs associated with its expansive computing infrastructure.

The decision stems from an unanticipated surge in the utilization of Ohio's tax break, which has dwarfed initial projections. The state reported that the exemption, projected to be $136 million in fiscal year 2025 and $142 million in fiscal year 2026 based on previous history, instead reached $554 million in 2024 and nearly $1.6 billion in 2025. This dramatic increase in cost coincides with growing opposition to data centers sweeping through Ohio's cities, suburbs, and towns, prompting state lawmakers to establish a committee to study the issue's impact.

Governor DeWine's spokesperson, Dan Tierney, clarified that the pause on new tax incentive offers is intended to allow the legislative process, including the new research undertaking, to unfold. While DeWine has consistently expressed support for data centers, deeming them a critical component of the modern economy and highlighting approximately $37 billion in related investments for 2024 and 2025 as worthwhile, the current circumstances necessitated a temporary halt.

Adding another layer of complexity, Ohio residents are actively seeking to bypass the GOP-controlled Legislature by pushing for a referendum on November's midterm election ballot. This proposed ballot initiative aims to permanently ban hyperscale data centers statewide, which would likely represent the strictest such ban under consideration in the U.S. The citizen-led drive faces a critical July 1 deadline to gather over 400,000 voter signatures.

The issue in Ohio is part of a broader national trend where state tax breaks for the massive data center industry are drawing increasing criticism from governors and lawmakers alike. The cost of these incentives is escalating as data center and AI-related investments drive higher consumer spending and tech giants boost their commitment to hyperscale data centers. For instance, in Virginia, negotiations have stalled for months over Senate Democrats' efforts to eliminate a roughly $1.6 billion annual tax break. According to the National Conference of State Legislatures, thirty-eight states currently offer some form of sales tax break for data centers, many of which were approved over five years ago when the industry was smaller and before the advent of AI technologies like OpenAI's ChatGPT intensified the demand for larger data centers.

Ohio's specific exemption is notably broad, encompassing not only construction materials but also expensive operational equipment such as server racks and cooling systems, which operators often replace every few years to keep pace with technological advancements. The governor's order came as a surprise to many, including Dorsey Hager, executive secretary-treasurer of the Columbus/Central Ohio Building and Construction Trades Council, who voiced concerns about potential developers reconsidering projects. State Rep. Adam Holmes, in announcing the joint data center committee on May 13, acknowledged the public opposition, stating, "This public concern has become a priority issue for us and could have dramatic impact on Ohio and American's future."

The future of Ohio’s data center tax break remains uncertain. Should it resume, it might do so under a new administration, as Governor DeWine is term-limited. The upcoming gubernatorial race features Republican nominee Vivek Ramaswamy, who envisions transforming the Ohio River Valley into the next Silicon Valley, and Democratic nominee Amy Acton. Both candidates could find themselves on the November ballot alongside the citizen-led initiative to ban data center construction, highlighting the significant political and economic stakes involved in this evolving debate.