Banks lobbied a capital rule to death twice. The third version, they welcomed.

What happened

US banking regulators are tightening how much cash banks must hold in reserve against loans and investments that could fail. The change forces banks to recognize losses they previously could defer or hide in accounting categories, making it harder for them to lend aggressively or return capital to shareholders without building larger safety buffers.

before Risk weights not adjusted for a decade

after Risk weights recalibrated for mortgages, corporate loans, and other exposures

Why this matters

For decades, banks have used accounting rules to defer losses on mortgages and other assets, keeping capital ratios artificially high. This proposal closes those loopholes by requiring banks to count accumulated losses immediately, which means less money available for lending and dividends. The real effect: banks shrink their balance sheets or raise capital, which tightens credit availability and raises borrowing costs for businesses and consumers.

The banking industry spent three years defeating a proposed safety rule, and the version that survived is the one they called a good direction.

Who wins, who loses

who wins The American Bankers Association, the Bank Policy Institute, and the Financial Services Forum, who formally welcomed a capital rule they had spent three years and an unprecedented lobbying campaign quietly shrinking.

who loses Progressive critics and the 2023 version of Michael Barr, who proposed a 19-20% capital increase for the largest banks and watched it get cut to 9%, then to a framework trade groups called a step in the right direction.

also Anyone with a mortgage, a business loan, or a deposit in a bank with between $100 billion and $700 billion in assets.

Jargon decoder

risk-weighted assets A calculation that counts some loans as riskier than others — a mortgage might count as less risky than a business loan, so it requires less capital reserve behind it.

standardized approach The method banks use to calculate how much capital they need by assigning risk weights to different types of loans and exposures.

mortgage servicing assets The right to collect payments on mortgages that a bank services for others.

accumulated other comprehensive income Gains and losses on investments and assets that banks hold but haven't sold yet.

The signal

Why this hasn't landed yet

The rule is technically an amendment to an existing regulatory capital framework, not a new law, so it reads as incremental even though it is the first substantive recalibration in over a decade. The prior failure of the 2023 proposal also trained coverage to frame any successor as a weakened afterthought rather than a meaningful policy shift.

What happens next

Bank lobbyists and trade groups will spend the next 90 days before the June 18 comment deadline shaping the final calibration of risk weights, having already demonstrated in 2023 and 2024 that comment periods and informal pressure can move the numbers by tens of percentage points.

The catch

The largest banks, having already demonstrated in 2023 that a coordinated lobbying campaign including TV ads and congressional delegations can cut a proposed 20% capital increase roughly in half, will use the comment period to further soften individual risk-weight calibrations that did not make headlines but determine actual lending economics.

The longer story

The longer arc

The direct structural predecessor is the August 2012 Standardized Approach NPR, which revised risk weights for residential mortgages and securitizations with an intended effective date of 2015. The rule now being revised is that one. The broader arc runs from the 2008 financial crisis through the 2013 U.S. Basel III adoption, thirteen years of endgame negotiations, and three separate domestic proposals before a version of the rule arrived that trade groups greeted without TV commercials.

Part of a pattern

Global, not unique. The Bank of England delayed its Basel 3.1 implementation in January 2025. The EU Commission proposed postponing its market-risk requirements in June 2025. Every major jurisdiction implementing the 2017 Basel endgame standards has encountered the same pattern of proposal, industry resistance, delay, and softening. The U.S. version simply ran the cycle three times before landing.