The Department of Internal Affairs has reassured a parliamentary select committee that no minister or former minister owes money for the use of their ministerial credit card.
The department's chief executive, Brendan Boyle, told the government administration committee that any personal spending on ministerial credit cards had been repaid.
Committee chair David Parker then asked Mr Boyle whether there was anything else the committee should know about ministerial credit card spending.
To laughter, Mr Boyle replied: "Oh I think the information's very public, Mr Chairman. I can't think of what else we could add."
Mr Boyle says he's confident about the systems in place governing ministerial credit cards, but an Auditor-General's report due in September might recommend changes.