UK lenders face smaller impact from Basel rules than rivals, BoE says

LONDON, Dec 12 (Reuters) - The Bank of England said on Tuesday that implementing the final leg of the global Basel bank rules will increase capital requirements at UK banks by 3%, far less than for their European Union and U.S. peers.

Regulators began rolling out the tougher capital rules after the global financial crisis of 2007-09 when taxpayers had to rescue ailing banks.

Britain, the EU, U.S. and other countries are now finalising how they will implement the final leg of the so-called Basel III capital standards, tailoring them to local circumstances.

The BoE published on Tuesday the first of two "near final" policy statements on implementing the Basel rules, saying it had made some tweaks to its original proposals following a public consultation.

The BoE said it estimates the impact of the final leg of Basel on UK banks will be "low" at an average increase in Tier 1 capital of about 3% once fully phased in by January 2030.

"This is lower than the European Banking Authority’s estimate of a Tier 1 increase of around 10% in the EU and the US agencies’ estimate of a CET 1 increase of around 16% for US firms," the BoE said.

U.S. banks have mounted a heavy lobbying campaign against the Federal Reserve's proposals for implementing Basel which follow several bank failures, including Silicon Valley Bank, earlier this year.

"The rules published today implement the latest Basel standards in the UK and include appropriate adjustments to take on points raised by respondents to our consultation," BoE Deputy Governor Sam Woods said in a statement.

Britain and the U.S. have said they will begin rolling out the final phase of Basel III in mid-2025, with the EU, which has already finalised its Basel rules containing several temporary waivers, despite warnings from the European Central Bank, starting in January 2025 but with longer phase-ins.

The BoE said its alterations boost competition by narrowing the advantage big banks have in using their own models to calculate capital buffers, over the more conservative norms for smaller lenders, to make capital ratios more comparable.

More substantive changes are expected in a second policy paper in the second quarter of next year covering a minimum capital "floor" for lenders that use their own calculation models.

Tuesday's statement includes an interim capital regime that small, domestic focused banks can apply as an alternative to Basel.