ZURICH, Aug 29 (Reuters) - A second Swiss parliamentary

committee on Friday backed a motion set to delay some tougher

capital rules for UBS, in a move signalling significant

support among conservative and centrist parties for the bank's

demands to soften proposed regulation.

The motion narrowly adopted by the upper chamber's economic

affairs and taxation committee passed its sister body in the

lower chamber in June, just weeks after the government presented

a long-awaited plan to tighten Swiss banking rules following the

collapse of Credit Suisse in 2023.

The text instructs the Swiss government to submit all of its

planned banking stability measures to parliament rather than

issuing some directly via so-called ordinance measures.

This could give UBS more time to fulfill the capital

requirements for a proposed stricter valuation of assets like

software or deferred tax assets.

The government had envisaged implementing these requirements

as ordinance measures, effective from 2027. But they could now

be handed over to parliament, in which case the new rules are

expected to enter into force in 2028 at the earliest.

Overall, the government said UBS would need to find up to

$26 billion in additional core capital. It estimated the

ordinance measures in the package could account for around $3

billion of the total.

UBS has criticised the new capital proposals, arguing they

are not proportionate and risk putting the bank at a

disadvantage against international competitors.

The motion passed the parliamentary committees with votes

from the right-wing Swiss People's Party (SVP), centre-right

Liberal Party (FDP) and centrist Green Liberal Party (GLP).

It still needs to be adopted by parliament to become

binding, with the debate set to take place in September. The

three parties together have a majority in the lower house but

would need additional votes to pass the upper chamber.