The bill was seen as crucial to help the government plan fiscal restructuring and boost Greece's credibility with its European partners, ekathimerini.com reported.
The so-called "mini" tax bill incorporates 31 amendments projected to raise $1.5 billion in extra taxes and $267 million from increased taxes on interest.
Some $3.07 billion would be raised from additional revenue and spending cuts.
Parliament will consider a so-called "national" tax bill later in the year.
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