One Nation leader Pauline Hanson says a plane flown by her controversial chief of staff James Ashby for campaign events was personally funded by a property developer supportive of One Nation but claims the electoral commission "hasn't got any issue with the arrangement."

The AEC is investigating how Mr Ashby acquired the plane and whether it subverted donation disclosure laws, as is alleged by the former Treasurer of One Nation Ian Nelson. Speaking on Sky News on Monday night, Ms Hanson revealed she has been in talks with the AEC since January, well before the allegations were first aired in the media.

Mr Nelson, who says he was pushed out of the organisation by Mr Ashby, a former staffer to the Liberal National party, claims the money to buy the plane was given personally to Mr Ashby by Victorian property developer Bill McNee. He told the ABC's Four Corners program last month that Mr McNee, who Fairfax Media does not allege is involved in any wrongdoing, gave Mr Ashby the funds so it could be used to "ferry Pauline around."

Mr Nelson said he urged Mr Ashby and Pauline Hanson to declare the funds and the plane but they overruled him, saying that as it was a donation to Mr Ashby privately and not to Ms Hanson or One Nation, disclosure was not required.