Switzerland’s parliament is weighing whether to ease one of the most consequential banking regulations to emerge since the Credit Suisse collapse. The compromise under consideration would let UBS back its foreign subsidiaries with 70-80% Common Equity Tier 1 capital instead of the originally proposed 100%.

The difference between those two numbers is not trivial. Under the stricter version, UBS could need to raise as much as $22 billion in additional capital, a figure large enough to reshape the bank’s entire strategic outlook.

What’s actually on the table

CET1 capital is the highest quality form of regulatory buffer, made up of common shares and retained earnings. When UBS absorbed Credit Suisse in 2023, it inherited a sprawling global operation and, with it, a sprawling set of risks. Swiss regulators responded by proposing that UBS fully back its international units with CET1 capital.

The proposed compromise would dial that requirement down to somewhere between 70% and 80%. That’s still a significant capital obligation, but it’s a far cry from the full backing scenario that had UBS staring down a potential $22 billion fundraising exercise.

The Economic Affairs and Taxation Committee in the Swiss upper house is scheduled to resume discussions on the matter in August 2026.

The backstory: balancing safety and competitiveness

In December 2025, center-right lawmakers floated a compromise involving AT1 capital, a type of debt that converts to equity during a crisis. That proposal helped push UBS shares to a 17-year high above SFr35.

The latest compromise on CET1 requirements follows that same pattern: lawmakers inching away from the most aggressive regulatory stance while trying to maintain credibility on financial stability.

What this means for investors

The December 2025 AT1 compromise already demonstrated how sensitive UBS’s stock price is to regulatory outcomes. If the CET1 requirement lands at 70-80% rather than 100%, UBS avoids having to raise billions in fresh capital. That’s capital it won’t need to source through dilutive share issuances, asset sales, or retained earnings that might otherwise go to dividends and buybacks.

The August 2026 committee discussions are just one step in what will be a longer legislative process. Parliamentary votes will ultimately determine the final framework, and there’s no guarantee the compromise holds at 70-80%.

These discussions are entirely focused on traditional banking regulation. There’s no intersection with digital asset policy, crypto frameworks, or blockchain-related oversight.