Former deputy prime minister Barnaby Joyce could make a surprise return to the floor of parliament before the end of the week.
The results of last weekend's by-election in his seat of New England will be officially declared by the Australian Electoral Commission at midday on Wednesday.
The writ is expected to be returned soon after, paving the way for Mr Joyce to retake his seat in the House of Representatives.
It is likely he will be sworn in on Wednesday afternoon.
With a more than 12 per cent swing, Mr Joyce scooped up 65 per cent of the vote compared to Labor candidate David Ewing's 11 per cent.
Mr Joyce returned to parliament earlier this week, signed in as a visitor, and was greeted by a standing ovation in a Nationals partyroom meeting.
The by-election was the result of a High Court ruling in October that Mr Joyce was a New Zealand citizen and therefore ineligible as an MP.
He has since renounced that citizenship.