Greece is preparing to present a list of reforms to lenders in order to secure a bailout extension.
The list to be submitted on Monday must be approved by international creditors to secure a four-month loan extension.
Analysts say a collapse of the deal would revive fears of a Greek exit from the euro.
Minister of state Nikos Pappas said the list would include measures to tackle tax evasion and streamline the civil service.
He told Greece's Mega Channel on Sunday that reforms would take the Greek economy "out of sedation".
Germany's Bild daily newspaper, citing sources close to the Greek government, reports that Greece aims to recover 7.3bn euros (£5.4bn; $8.3bn) with measures to combat tax evasion.
German Foreign Minister Frank-Walter Steinmeier told Bild the extension agreement reached on Friday with European finance ministers had given the region "some breathing space, nothing more".
"Now it's up to Athens," he added.
Greece agreed at a meeting with its EU and IMF lenders on Friday to submit the list of reforms before Tuesday.
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