Last month, the Federal Reserve took an important step toward aligning U.S. bank capital requirements with the Basel III international framework. Under the updated proposal, banks would be permitted to hold slightly fewer funds in regulatory capital and instead deploy those resources into productive activities such as business lending. Vice Chair for Supervision Michelle Bowman’s revised approach represents a meaningful improvement in how regulators evaluate complex capital rules and underscores why disciplined calibration can advance both taxpayer interests and broader economic resilience.
At its core, the Basel III framework governs how much capital banks must hold against potential losses. Capital serves as a buffer that protects depositors and the financial system during periods of stress. Importantly, U.S. banks remain exceptionally well capitalized, with roughly 99% of institutions exceeding current requirements. As a result, there is little evidence that the proposed adjustments would undermine financial stability. In fact, they may help to buttress stability in the long run.
According to The Wall Street Journal, the changes would allow the largest banks to hold, on average, 2.4% less capital—roughly $20 billion collectively—while midsize banks could reduce capital buffers by an average of 5.2% when accounting for stress-test revisions, and smaller banks by approximately 7.8%.
Ensuring banks can withstand economic shocks requires balance. Too little capital increases the risk of taxpayer-funded bailouts reminiscent of the 2008 financial crisis. Too much capital, however, can unnecessarily constrain lending and limit the investment businesses need to start, expand, and hire. The objective for policymakers should be straightforward: strong, risk-based capital standards that minimize systemic risk without suppressing economic activity.
Achieving that balance has not always been easy. Earlier versions of the Basel III “Endgame” proposal raised legitimate concerns that certain provisions would significantly increase capital requirements without clear gains in financial resilience. As we’ve previously warned, capital standards set too high can be as harmful as those set too low, restricting credit availability, slowing growth, and pushing financial activity into less regulated sectors. The result could be ambiguity and volatility, leading to more institutional failures that pressure policymakers to approve taxpayer bailouts.
The revised proposal reflects a more careful, policy-driven approach. Rather than layering new requirements onto an already robust U.S. capital regime, the Federal Reserve is pursuing what Bowman has described as a “sensible recalibration.” The framework maintains capital levels above pre-2020 standards while refining how requirements are measured and applied to better reflect actual risk exposure.
This recalibration comes at a timely moment. Following enactment of the One Big Beautiful Bill Act—which included several pro-growth tax provisions expected to encourage business investment—demand for capital is likely to increase. As businesses expand and investment accelerates, enabling banks to extend additional credit helps support a stronger economic growth cycle. That means a healthier financial sector, one which is ultimately more resilient and able to absorb the shocks of a few failures among carelessly managed institutions.
Beyond the broader macroeconomic benefits, several specific improvements stand out.
First, the proposal adopts a simplified “single stack” framework for large banks, replacing a complex structure that risked duplicative requirements. This change improves transparency and ensures capital standards focus on material risks rather than overlapping calculations that obscure true exposures. In the long run, this improved perspective could actually allow federal watchdogs to spot financial trouble at banks sooner.
Second, the framework enhances risk sensitivity across key lending categories. Mortgage requirements would incorporate loan-to-value ratios, while retail lending standards would better reflect borrower repayment history. Just as important, the proposal avoids imposing new capital penalties on mortgages and consumer lending. Earlier iterations risked raising borrowing costs without clear evidence of additional systemic risk—an outcome that could have distorted housing markets and limited access to credit.
For taxpayers, this distinction matters. Housing remains central to household financial stability, and regulatory frameworks should not unnecessarily restrict responsible lending or access to homeownership.
Third, the proposal refines operational and market risk requirements to better reflect how U.S. banks actually operate. Operational risk standards would allow tailored adjustments and netting of certain fee-based activities, such as credit card operations, preventing inflated risk estimates. Market risk rules incorporate standardized measures, recognize diversification benefits, and permit the use of internal models where appropriate—bringing regulation closer to measuring real economic risk rather than relying on blunt assumptions.
Taken together, these changes modestly reduce capital requirements compared to earlier drafts while preserving resilience well above historical norms. These are not merely technical revisions. Capital rules shape how credit flows throughout the economy. When misaligned, they can increase borrowing costs, restrict financing, and slow economic activity. When properly calibrated, they promote both financial stability and sustained growth.
This calibration process should never be considered “finished,” in the sense that, from time to time, improvements can be made as new data become available. Furthermore, other government policies concerning financial risk, in loan guarantees and especially in capital standards at Fannie Mae and Freddie Mac, must still be evaluated with an eye toward protecting taxpayers.
A well-designed capital framework reduces systemic risk while preserving the investment, job creation, and economic dynamism that support long-term fiscal health. The Federal Reserve’s revised Basel III proposal moves policy meaningfully in that direction—a direction taxpayers can applaud.