According to NZZ am Sonntag, the amounts of Greek funds hidden in Swiss banks accounts range widely between two and 200 billion euro ($2.2 billion and $222 billion).
The amnesty of the latter figure's tax evaders is expected to bring a much-needed revenue to the Greek government, according to the paper.
"We welcome the fact that Greece has put forward a proposed solution," the paper quoted Mario Tuor, Head of Communications at the Swiss State Secretariat for International Financial Matters (SIF), as saying.
Greece owes some $270 billion of its total $350-billion debt to its major international lenders — the European Central Bank, the International Monetary Fund (IMF) and some eurozone nations.
On June 30, Athens defaulted on the IMF after failing to transfer a $1.7-billion loan repayment before the expiry of the aid package. On Sunday, a nation-wide referendum is being held in Greece on whether to accept creditors' proposals envisaging spending cuts and tax increases in exchange for another financial aid package.