(UNITED STATES) — Meta Platforms Inc. reported a $16 billion reduction in its quarterly income that it tied to the US Corporate Alternative Minimum Tax, a hit that offset tax benefits from the 2025 One Big Beautiful Bill Act.
The company pointed to the levy known as CAMT, describing the $16 billion charge in its earnings release as one that “reflect[s] the impact of the US Corporate Alternative Minimum Tax.”
Meta also told investors that the One Big Beautiful Bill Act, passed in summer 2025, drove expectations that it would see “a significant reduction in our US federal cash tax payments for the remainder of 2025 and future years.”
That mix of a large quarterly income reduction and an upbeat cash-tax outlook has put renewed attention on how CAMT works as a minimum-tax backstop, and how it can still bite when Congress expands deductions and expensing through legislation such as the One Big Beautiful Bill Act.
The disclosure also highlights a basic accounting divide that can be hard for investors to parse in a single quarter. Meta framed the $16 billion figure as an earnings impact tied to tax expense, while signaling that federal cash tax payments can move differently because timing can shift when tax benefits show up.
CAMT became law in 2022 under the Biden administration as a minimum tax framework aimed at ensuring large corporations pay at least a 15% effective tax rate on adjusted financial statement income. The mechanism is designed to limit what lawmakers viewed as excessive use of tax breaks, including research expensing and interest deductions.
Unlike the regular corporate tax system, CAMT is computed using adjusted financial statement income, a book-income concept. That book-income starting point can diverge from regular taxable income, creating situations where companies report sizable tax expense effects even when legislative changes increase deductions.
The result can look abrupt. When large deductions pile up, the minimum-tax framework can restrain how much benefit shows up immediately, even when the underlying tax provisions remain available in other years.
The One Big Beautiful Bill Act changed the landscape for companies with large investments and substantial research costs. The law extended bonus depreciation and allowed immediate R&D expensing, including retroactively for prior years.
OBBBA also loosened interest deduction limits, added fossil fuel subsidies, and kept the 21% corporate rate. Meta highlighted the combined effect in its forecast for lower US federal cash tax payments beyond 2025.
Those provisions, however, did not repeal CAMT, despite corporate lobbying. That matters because CAMT operates as a backstop that can cap the near-term benefit of the same deductions and expensing rules that the One Big Beautiful Bill Act expanded.
Meta tied its quarterly charge to that interaction. The company’s earnings disclosure described how the law’s retroactive R&D provisions can pile up deductions in ways that trigger CAMT for high-profit firms like Meta, which the material described as having average annual profits over $1 billion.
In practical terms, the minimum tax can act as a brake when deductions surge. Even if regular tax calculations fall because of expanded expensing, CAMT can still apply because it measures liability against adjusted financial statement income.
That dynamic can turn what might look like a straightforward tax cut into a timing-driven accounting event. A quarter can show a sharp income reduction tied to tax expense at the same time that management points to lower cash payments in later periods.
Meta framed the CAMT impact as a restriction on how fully it can use breaks tied to the One Big Beautiful Bill Act. The company disclosure described the tax as limiting its ability to fully utilize these breaks, potentially deferring unused benefits to future years.
The distinction between financial statement tax expense and cash taxes sits at the center of the episode. A large reduction in quarterly income can reflect how tax costs are recognized for reporting purposes, even when the actual cash outlay follows a different schedule.
CAMT’s design helps explain why. Because it uses adjusted financial statement income as its base, it can curb the immediate usefulness of tax benefits such as deductions, expensing, and interest-related tax attributes when those benefits are measured against book income rather than regular taxable income.
That can produce a striking headline number in a single period. The accounting recognition can land at once, while the practical ability to use deductions can shift into future years depending on the facts and guidance described by the company.
The policy debate has now moved to regulators as well as lawmakers. The Trump administration’s Treasury Department has proposed CAMT regulations to exempt OBBBA’s retroactive R&D expensing.
Critics described that approach as an illegal workaround that would deliver further cuts beyond congressional intent. Supporters and opponents have framed the question as one of how much discretion Treasury has within statutory authority, given that CAMT remains in force and OBBBA left it in place.
Revenue estimates have also played a role in the argument. Prior Treasury changes already cut projected collections by $10 billion over a decade per the Joint Committee on Taxation.
The regulatory push matters most to companies that land squarely within the minimum tax’s intended target group. CAMT was set up as a backstop for very large corporations, and the material describing Meta’s situation pointed to firms with average annual profits over $1 billion.
Meta’s $16 billion restriction has surfaced as a high-profile example in that debate. The company sits at the intersection of large reported profits, large investment outlays, and significant research spending that can generate substantial deductions under the One Big Beautiful Bill Act.
For investors, the episode underscores how Meta Platforms Inc. can report a major tax expense impact even while projecting lower federal cash tax payments over time. It also shows how a minimum-tax framework can pull in a different direction from a bill that expands expensing and deductions.
The same tension sits at the center of broader disputes about large-corporation effective tax rates, incentives for investment and R&D, and the tradeoff with federal revenue. CAMT was designed to ensure a 15% effective tax rate on adjusted financial statement income, while OBBBA maintained a 21% corporate rate and expanded deductions in ways that can lower regular tax calculations.
Future outcomes for Meta and similar firms hinge on what happens next to CAMT. The range of results depends on whether CAMT is changed legislatively or refined through regulations and guidance, including Treasury’s proposals touching retroactive R&D expensing and the objections that have followed.
Meta’s own messaging captured the push and pull. The company linked its quarter’s $16 billion income reduction to CAMT, while separately telling investors it expected “a significant reduction in our US federal cash tax payments for the remainder of 2025 and future years.”
Meta Platforms Inc. Challenges $16 Billion Corporate AMT Bill Under One Big Beautiful Bill Act
Meta Platforms Inc. faced a $16 billion charge due to the Corporate Alternative Minimum Tax (CAMT), which offset benefits from the 2025 One Big Beautiful Bill Act. While the new law expands R&D deductions, CAMT acts as a 15% floor on book income. This creates a complex accounting scenario where quarterly reported income drops, even as the company anticipates lower federal cash tax payments in future years.
