THE Queensland Government is investigating how many same-sex couples had already undertaken ceremonies since civil unions were legalised.
Attorney-General Jarrod Bleijie said he had requested advice from Crown Law, a section of the Justice Department, two weeks ago and was seeking information on where those partnerships stood if the legislation was repealed.
He said while it was not in the LNP's 100-day plan, the party had tipped the reversal of the legislation before the election and he hoped to have advice soon.
Mr Bleijie said the legal advice would present options and consequences for repealing all or part of the law the previous government introduced last year.
"We will be repealing the civil partnership law if we're not going to put people in legal limbo," he said.
"It's not a priority and we don't want it to get in the way of achieving our 100-day plan priorities.
"But once I get that legal advice I will form a position and go to the Cabinet with it.
"We opposed the bill when it was introduced and I spoke against it when I was shadow attorney-general.
"I think I received only two emails in the office disagreeing with my view.
"If we end up repealing it, no one can say we took them by surprise."
A Justice Department spokesman said 438 couples had registered civil partnerships this year to date and 18 of those have had declaration ceremonies already.
But he said the figures did not show how many were same-sex couples.
Premier Campbell Newman has publicly supported changes to allow gay marriage in Australia but he has since shelved his personal views.