Premier Annastacia Palaszczuk has denied she went against the Integrity Commissioner's advice in announcing a veto on the potential for an almost $1 billion concessional loan for the Adani mine.

On Friday, Ms Palaszczuk announced she would veto the federal loan, after alleging an LNP "smear" campaign against her partner, Shaun Drabsch, who she became aware was involved in the application for loan for Adani's rail link through the Northern Australia Infrastructure Facility.

Annastacia Palaszczuk confirmed she made the decision to veto the loan, not the CBRC. Credit:Darren England/AAP

The Queensland Cabinet Budget Review Committee - which includes the Premier, Treasurer and two senior ministers - would be able to veto any NAIF application at stage four, the investment decision and execution stage.

Integrity Commissioner Nikola Stepanov recommended the Premier declare a conflict of interest to the CBRC and exclude herself from any part of CBRC meetings that involve deliberations and decision-making about any NAIF projects at stage four, the veto stage.