The New National Party Federal Council on Saturday agreed to disband the party at midnight on the evening of the final certification of the results of the local government elections.
Eighty eight people voted in favour of the motion and two disagreed.
Three abstained.
"Those who opposed the vote are fully within their rights," said NNP leader Marthinus van Schalkwyk.
The Federal Council said it should be empowered to deal with all matters regarding the disbandment.
These included the development of guidelines for the management of any surplus funds of the Federal Council and the provinces.
"The federal executive should make the necessary decision regarding any surplus funds at the federal level," Van Schalkwyk said.
The party's registration remains effective at the Independent Electoral Commission up until final disbandment. - Sapa