A tight contest between Labor and the LNP in the Queensland seat of Maryborough could potentially decide the winner of the state election.

Senior Labor figures said a victory in Maryborough should be enough to make Annastacia Palaszczuk the next Premier of Queensland.

Election analysts said several seats were still in doubt, but senior Labor figures said the party, with the support of Independent MP Peter Wellington, was on track to win 44 seats.

The Electoral Commission Queensland said the result in Maryborough might not be known until Tuesday.

It said counting of the primary votes was expected to be finalised today and then independent candidate Chris Foley's preferences would be redistributed.

The ECQ said postal votes could also influence the result, with the cut-off for postal votes being next Tuesday.

Labor's candidate for Maryborough Bruce Saunders said he was "quietly confident" he would deliver the required target of 45 seats the ALP needed to form government.

"The last count finished around 7:15pm on Saturday night and the independent was knocked out of the race," Mr Saunders said.

"The preferences of the independent Chris Foley will be counted today, and we will see if it catapults me over the LNP member.

"At the moment it is too close to call but we are quietly confident."

The new leader of the LNP in Queensland, Lawrence Springborg, said he and his deputy leader John-Paul Langbroek would deliver a competent caretaker government until the final result of the election was known.

"Whatever the outcomes may be ... we [will] keep the trust of Queensland people by ensuring that we are a competent caretaker government," Mr Springborg said.

"We can continue to administer this state on their behalf until there is a very definite outcome and conclusion for them."

Mr Springborg said Queenslanders had spoken clearly against the leasing of state assets, and that his party would seek to rebuild trust.

"That's probably an area where we were not able to display the level of empathy and the level of concern and consideration that the people of Queensland understood," he said.

"We are going to be making sure ... that we will rebuild that faith and trust which the people of Queensland should invariably expect of the elected representatives."