Meta Calls Its AI Data Centres Experiments. The Tax Bill Shrank by US$3.9B

The federal research tax credit was written in 1981 to reward companies for experimenting. Meta has found a way to apply it to the biggest, most routine-looking thing it builds: AI data centres stuffed with Nvidia chips.

A New York Times investigation published Sept. 30, by Kashmir Hill, Jesse Drucker, Eli Tan and Mike Isaac, reports that Meta classifies its AI data centres as “pilot models” so that the chips inside them count as research supplies, according to The Next Web‘s summary of the Times story. The research and experimentation credit rebates companies for supplies consumed in experimental work rather than ordinary operations, Gizmodo notes. Meta’s position is that its data centres are, in effect, experiments.

The money is not small. Per the Times’ reading of Meta’s filings, Meta’s research credits rose from US$700 million (CA$973 million) in 2023 to US$2 billion (CA$2.8 billion) in 2024 and US$3.9 billion (CA$5.4 billion) in 2025. Meta’s 2025 annual report puts total federal research credits at US$3.912 billion, Implicator reports, without breaking out how much came from data centres. Meta’s 2025 credit was larger than Apple’s US$1.05 billion and Alphabet’s US$2.09 billion combined.

Meta’s own accountants are hedging

Here is the number that should interest investors. Meta’s reserve for uncertain tax positions, the money a company sets aside for tax benefits it might have to give back, has climbed 45% to US$18.74 billion (CA$26 billion), up from US$12.9 billion. Per Implicator, the June 2026 figure in Meta’s second-quarter 10-Q covers both research credits and foreign transfer pricing, so not all of it is about data centres.

Still, the direction is the tell. Gizmodo, citing the Times, reports that Meta’s accountants worry the classification sits in a gray area the IRS could overturn. Lisa De Simone, a University of Texas accounting professor and former EY tax adviser, put it bluntly to the Times: “Meta is claiming billions of dollars in tax benefits that its own accountants are telling investors are at risk of being overturned by the IRS,” as quoted by Yahoo Finance.

Other specialists were less polite. Andre Shevchuck, who leads the research credit practice at advisory firm BPM, called the approach “kind of wild and out there.”

Meta’s defence is that it is doing what the law allows. “Like other companies that invest at this scale, we use the tax incentives Congress established decades ago to encourage this type of domestic investment,” spokesman Andy Stone said, per Yahoo Finance. According to The Next Web, Meta declined to say what makes the data centres experimental.

Why this lands now

Timing matters for Meta’s cash. Gizmodo reports that Meta’s free cash flow fell to US$784 million last quarter, roughly US$8 billion below the same period a year earlier, as AI capital spending ate the margin. Billions in credits are not a rounding error against that number. Losing them would be felt.

And Meta is not a fringe user of the credit. The Joint Committee on Taxation projects the credit will cost the government US$32.1 billion in fiscal 2025, and Meta alone accounts for more than a tenth of the total benefit, per The Next Web. The Times calls Meta the biggest publicly traded beneficiary.

Our read: the legal question is narrow, but the business question is not. If a GPU running production inference can be a research supply because the system it sits in is novel, every company building AI infrastructure has the same argument available. Google, Microsoft and Amazon all build novel clusters. If the IRS lets Meta’s treatment stand, expect the credit’s cost to the Treasury to grow with the AI build-out. If it challenges Meta, the US$18.74 billion reserve is a rough guide to how much is in play, and nobody outside Meta knows how much of it is chips.

The analysis that matters is whose risk this is. Meta booked the savings. Its auditors booked the doubt. Taxpayers, in the meantime, are carrying a slice of the most expensive infrastructure project in corporate history on a credit meant for lab benches.

Former Representative James Shannon, who sponsored the credit in 1981, told the Times: “This has gone way, way beyond what anybody could have imagined.”