Mr Wilkie, who is poised to pick up the Tasmanian seat of Denison, says he's "quite deliberately" put off discussions with the country independents who are meeting in Canberra.
"I'm a little uncomfortable with the way the three incumbent independents are apparently acting as one, as a bloc," he told ABC Television, noting that they look like a "political party with three factions".
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"I haven't spoken to them yet, and I certainly won't be forming any so-called bloc with them."
Mr Wilkie says he's spoken to both the prime minister and opposition leader, but remains undecided about which party he will support.
"I don't favour Labor or Liberal," he said, adding that over the past few months the Labor government had not been "stable, competent or ethical".
"And I'm yet to be persuaded that the Liberal party could do any better."
Mr Wilkie says whichever party he sides with, support will be limited to a pledge not to block supply or support unwarranted no confidence motions.
"To just become a rubber stamp means you have effectively joined that party," he said, adding that he would consider every issue and policy on its merits.
