Union payments to the Australian Labor Party (ALP) appear unlikely to be included in any inquiry by Queensland's Crime and Corruption Commission (CCC) into political donations, with the Premier insisting the inquiry be specific to the awarding of government contracts.

Annastacia Palaszczuk said yesterday she had no problem with the terms of reference covering Labor governments, as well as donations to the Liberal National Party (LNP).

But today Ms Palaszczuk would not commit to including the relationship between Labor and the union movement.

"We have made an election commitment that we will look at political donations and any perceived conflict in the awarding of government contracts and tenders," she said.

"We will be releasing those terms of reference in the near future - I said by the end of the month. I'm not going to have daily speculation about it."

Deputy Premier Jackie Trad went further, saying unions did not make government decisions.

"Let's be clear, the commitment was about government decisions," she said.

"Now, I don't know how many unions make decisions on behalf of government, but my guess would be zero.

"It was our commitment at the election that we would conduct an inquiry into the link between donations to the Liberal National Party and government decisions by the Liberal National government of the day."

Labor wants to 'get even' with LNP

Opposition Leader Lawrence Springborg has stepped up his criticism of the planned inquiry, accusing the Government of trying to use the CCC to "get even" with the LNP.

"This will undermine credibility and support in the Crime and Corruption Commission," he said.

"This is an appalling abuse of power by this government... Anna Bligh, in the lead up to the 2012 election, used the CCC to pursue the then LNP opposition.

"Annastacia Palaszczuk is repeating the mistake."

However, Ms Trad said the commission could decline to carry out an inquiry.

"Theoretically the CCC could say no," she said.

She said the Government may also correspond with the Parliamentary Crime and Corruption Committee about a potential parliamentary inquiry.