Businessman Sir Robert Jones has confirmed he gave $25,000 to the New Zealand First Party.
The Dominion Post newspaper reported the donation on Thursday.
Sir Robert told Morning Report he has also other large donations to the party including $50,000 when it was founded.
He says his staff have looked into the $25,000 cheque and says it was made out to the Spencer Trust.
He says it would concern him if that money did not go to the party.
