Dems Urge Treasury to Close Retroactive R&E Expensing Loophole
In a recent letter, nine Democratic members of Congress have urged Treasury officials not to create a Corporate Alternative Minimum Tax (CAMT) carveout for companies that accelerate their research and experimental (R&E) expense deductions under the One Big Beautiful Bill Act (OBBB). Led by Senator Elizabeth Warren (D-MA), the letter highlights concerns about the potential impact on national debt and requests detailed information on the proposed carveout.
The OBBB reintroduced full, immediate domestic R&E expensing, reversing a previous five-year amortization requirement that took effect on January 1, 2022. For expenses incurred between 2022 and 2024, taxpayers have two options: deduct the remaining unamortized amount in the first tax year after 2024 or deduct it ratably over the next two years.
However, trade groups like the National Foreign Trade Council and R&D Coalition argue that the interaction between R&E expensing and CAMT could lead to unintended consequences. CAMT imposes a 15% minimum tax on the adjusted financial statement income (AFSI) of large corporations, ensuring a minimum tax payment even if deductions or credits reduce taxable income.
The reinstatement of full expensing in 2025, along with amortization from prior years, may result in a reduction in taxable income and regular tax liability without a corresponding impact on AFSI, according to the National Foreign Trade Council. They urge the Treasury to allow taxpayers to adjust their AFSI for CAMT purposes for R&D expenditures incurred between 2022 and 2024.
Andrew Lautz of the Bipartisan Policy Center explains that companies may face a unique challenge in 2025 due to the stacking of accelerated deductions from 2022-2024 on top of full R&D expensing for 2025, potentially leading to a significant decrease in taxable income compared to book income.
Democratic lawmakers, including Warren, oppose the proposed carveout, arguing that it would undermine CAMT's purpose of ensuring no billionaire corporation pays a lower tax rate than 15% on reported income. They view the retroactive R&E expensing as a 'giant new tax loophole,' as it could allow companies to accelerate $67 billion in tax deductions in 2026, significantly reducing their tax liability and bypassing CAMT as a safeguard.
Despite the concerns, Lautz notes that the shift back to immediate, full R&E expensing had bipartisan support, and the transition may have been inevitable. Warren also expresses worry that retroactive expensing fails to incentivize new economic activity, as the research has already occurred, potentially leading to higher executive pay or shareholder benefits.
In response to these concerns, the lawmakers request a December 17 reply from Treasury Assistant Secretary Ken Kies and Secretary Scott Bessent regarding regulatory changes to address the R&E expensing and CAMT interaction. They also seek details on the number of companies with lower tax liability and the impact on national debt if the proposed carveout is implemented.
