The Labor Party has lodged a complaint with the Australian Electoral Commission (AEC) over allegations LNP candidate for Lilley, Vivian Lobo, has provided false information about his residential address.
AEC records show Mr Lobo is enrolled to vote at an address at Everton Park on Brisbane's north side, inside the electorate of Lilley, but the home looks vacant and neighbours say no-one has lived there for months.
An AEC spokesman said it was aware of media reports about Mr Lobo's residence and was "reviewing the circumstances".
"We may have more to say soon but that is it for now," the AEC spokesman said.
The ABC on Friday approached Mr Lobo at the residence in Everton Park.
He declined to answer questions earlier on Friday about whether he lived at the address.
Mr Lobo has since said in a statement he had "enrolled in the electorate as I had signed a lease in Everton Park with the intention to move in straight away".
"However due to my campaign commitments and difficulty with getting tradespeople to the home, I was delayed moving in," he said.
In March, Mr Lobo was picked as the LNP's candidate for Lilley — a marginal Labor seat held by Anika Wells.
In a letter to the AEC, Labor complains Mr Lobo "may have committed enrolment fraud".
And Queensland Labor state secretary Julie-Ann Campbell requests the AEC "make any appropriate referrals" to Australian Federal Police and prosecutors.
"There is a substantial reason to believe that Mr Lobo's enrolment is not legitimate," Ms Campbell writes.
The letter details penalties for giving false or misleading information to a Commonwealth officer.
It says the criminal offence is punishable with 12 months' jail and a fine of up to $12,600.