Shadow Treasurer Jim Chalmers cast his vote in Rochedale this morning.

Dr Chalmers said voters he had met on the campaign trail had largely been supportive of the ALP's election messaging.

"There's a really important choice of this election, a better future under Labor, or three more years under Scott Morrison," he said.

"I've been heartened by the response that we've been getting our message so far, people don't want another three years of the same."

Although feedback had been positive, the Rankin incumbent said the campaign in Queensland hadn't been a walk in the park, particularly after large swings against the ALP in the 2019 federal election.

"I know as a Queenslander that we have to work twice as hard for every vote and it has been historically difficult for us here," Dr Chalmers said.

"But we picked amazing candidates, we laid out an agenda for a better future for Queensland and we've done the work. I hope to see that recognised at six o'clock."

Dr Chalmers also said he and the rest of his party were not getting "carried away" by recent polling, which puts Labor ahead of the Liberal National Party in the two-party preferred vote, and Anthony Albanese and Scott Morrision on even footing as the preferred Prime Minister.

"The polls have been notoriously inaccurate in recent elections, and so we don't get carried away when they're good and we don't get carried away when they tighten," he said.

The Shadow Treasurer was also confident in the ALP's recently-announced policy costings, which would add $7.4 billion to the national deficit, saying the extra spending would benefit the country.

"People have said to us they want to put an end to the rorts and the waste and the economic mismanagement," Dr Chalmers said.

"The Commonwealth budget belongs to the Australian people that needs to be invested wisely on their behalf and that's what we intend to do."