BERLIN (Reuters) - Germany's opposition Social Democrats demanded that Chancellor Angela Merkel come clean about the risk of losses on government loans to Greece before a looming election, after the IMF said Athens may require additional debt relief as early as next year.
Carsten Schneider, budget expert for the SPD in parliament, accused Merkel and her Finance Minister Wolfgang Schaeuble of being dishonest with voters by trying to push back a discussion of Germany's exposure to Greece until after the September 22 vote.
His comments on Thursday came a day after IMF economist Paul Thomsen said European governments had committed to providing more debt relief if Greece's primary budget balance fell short of target in 2013 or 2014.
"The chancellor and the finance minister need to stop leaving the public in the dark about the fact that after the election there will have to be official debt forgiveness for Greece," Schneider said.
"The Chancellor has said Greece should stay in the euro. Now she has to say what this promise will cost. The truth must come out before the election."
Private owners of Greek debt were forced to take losses on their holdings last year, but European governments and the European Central Bank have refused to take a so-called "haircut" on the debt they hold.
Germany has insisted a writedown of Greek debt held by euro zone governments would be illegal, although Schaeuble hinted late last year that objections to such losses might be dropped if Greece achieved a primary surplus.
(Reporting by Noah Barkin; Editing by Stephen Brown)