Stathakis, a member of the hard-left government that took office in Athens last month, was quoted by the Wall Street Journal as saying that "we will have liquidity problems in March if taxes don't improve".
The minister took to Twitter today to dispute the story, saying in a statement: "I didn't say that there would be problems with liquidity in March. That's not true."
He said the legislative agenda that Prime Minister Alexis Tsipras would set out tomorrow evening "will include measures to increase tax receipts, thus ensuring the necessary revenue".
In his interview with the WSJ, the minister reportedly said that tax revenues fell by about seven percent, or about 1.5 billion euros, between November and December, and likely fell a similar amount in January.
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The new Athens government has rejected the final tranche of loans it is due before an international bailout programme expires at the end of this month, worth 7.2 billion euros, insisting it prefers to renegotiate the entire package.
Athens wants 1.9 billion euros in profits made by the European Central Bank on Greek bonds, and permission to raise more money through short-term Treasury bills.
But this stance has put Greece back on a collision course with its EU partners, who want an agreement before the programme expires, or for Athens to request an extension.