Senate Democrats Probe Meta's $6.6B AI Data Center Tax Credit

Senate Finance ranking member Ron Wyden and six other Democrats sent Mark Zuckerberg a letter this week asking whether Meta described its AI data centers to the IRS as experimental "pilot models" to claim the federal research and development credit, a strategy that filings show cut Meta's federal tax liability by $6.6 billion over 2023 through 2025. The New York Times reported the senators want a response by October 31.

The yearly curve climbs steeply: $700 million in 2023, $2 billion in 2024, and $3.9 billion in 2025. The senators argue that last figure represents more than 10% of all research credits claimed in the US; the Joint Committee on Taxation puts the program's 2025 cost at $32 billion. An incentive meant for experimental work with a high degree of technical uncertainty should not, they wrote, subsidize proven data center hardware at scale. The approach, the letter says, violates "the spirit and, potentially, the letter" of the tax law.

"Any effort by Meta to use A.I. data center expansion as eligible for research credits is potentially a significant misapplication of federal tax law that merits further investigation," Wyden said.

Meta spokesman Andy Stone defended the company's spend, saying Meta invested "$200 billion in research and development over the five years preceding the investigation, including $57 billion in 2025." Meta's own securities filings have already flagged the position; the company warned shareholders that billions in tax savings tied to the credit are vulnerable to being overturned by the IRS. House Democrats, separately, have pressed Treasury Secretary Scott Bessent to narrow the Treasury's reading of what qualifies.

It arrives against a buildout our AI infrastructure tracker has filled with scrutiny all month, including a Fed governor warning the data-center boom may be overheating the economy.