UBS warns on Swiss capital rule proposals

Generic Swiss bank headquarters exterior amid debate on capital rules and restructuring risk for UBS

Key Points

01UBS challenges a plan for 100% CET1 backing of foreign units
02Bank views a 50% CET1 / 50% AT1 compromise as “painful but doable”
03UBS estimates about $13 billion of AT1 capital under the compromise
04Final capital regime will be decided in an upper house vote in 2026

UBS pushes back on proposed capital tightening

UBS is contesting aspects of planned Swiss capital rules that would significantly increase the capital it must hold against foreign subsidiaries. Chief Executive Sergio Ermotti said the bank can accept a degree of tightening but described a government proposal to require 100% Common Equity Tier 1 (CET1) backing for foreign units as excessive.

Ermotti argued that such a requirement would drive up costs not only for shareholders but also for customers and employees. He framed the issue as one of maintaining the bank’s competitiveness while complying with a more demanding regulatory framework.

Details of the parliamentary compromise

A parliamentary committee has put forward a compromise that would allow UBS to cover half of the foreign-unit capital requirement with Additional Tier 1 (AT1) instruments and the other half with CET1. Ermotti said this 50% CET1 and 50% AT1 structure would be “painful but doable” for the bank.

UBS estimates that meeting the compromise terms would require about $13 billion in AT1 capital. While challenging, this is presented as a manageable burden compared with stricter options that lean more heavily on CET1.

Cost implications of stricter alternatives

Ermotti warned that alternative plans calling for 90% or 100% CET1 backing for foreign subsidiaries would be materially more expensive. He illustrated the impact by saying UBS could live with “a black eye,” but that “two black eyes and a broken nose is too much,” underscoring the added strain such rules would impose.

The government has indicated that the tougher original proposal could entail roughly $20 billion of extra capital. This figure highlights the scale of potential additional requirements if policymakers reject the compromise in favor of a more conservative capital mix.

Strategic stakes ahead of the 2026 vote

Switzerland’s upper house of parliament is expected to decide on the new UBS capital rules around Wednesday, September 23, 2026. That vote will determine whether the compromise prevails or whether stricter CET1-heavy options are adopted.

UBS Chairman Colm Kelleher has said the bank would need to consider its future in Switzerland carefully if the final regime is so demanding that UBS cannot compete effectively. The comments from both Ermotti and Kelleher underline that the outcome of the 2026 vote could have significant implications for the bank’s cost structure and strategic positioning.

Key Takeaways

01UBS considers a mixed CET1/AT1 structure burdensome but still viable, contrasting it with far costlier CET1-heavy options.
02The difference between the compromise and the original plan is measured in several billions of additional capital, shaping UBS’s stance.
03Management is linking regulatory outcomes directly to UBS’s competitiveness and potential long-term presence in Switzerland.

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