The loss protection agreement (LPA) will become effective with the completion of Credit Suisse takeover, expected as early as June 12, UBS said in a separate statement.
The guarantees will kick in if UBS incurs losses from the sale of Credit Suisse assets beyond 5 billion francs that the lender is due to cover itself.
The money was made available by the government to ease the emergency takeover of Credit Suisse, whose collapse risked triggering a global financial crisis.
"To make the takeover possible, the government granted UBS a guarantee for any losses incurred in the liquidation of Credit Suisse assets," the government said in a statement.
The agreement will remain in place until the final realisation of the Credit Suisse assets.
Persons:
Denis Balibouse, Noele Illien, John Revill, Tomasz Janowski
Organizations:
Swiss, UBS, REUTERS, Suisse, Credit Suisse, country's Social, Credit Suisse's, Thomson
Locations:
Zurich, Switzerland, ZURICH, Swiss