In its unanimous judgement after a hearing which lasted two hours and forty minutes, the ANC's disciplinary committee said Holomisa had behaved throughout his disciplinary process as though "he is above the organisation".
"He confuses his membership of the movement with his (former) status as being a head of the bantustan of the Transkei. He has turned the whole process into a public circus."
The committee said it might have had some sympathy for the former deputy environment minister had he stuck to the first charges, which related to his testimony to the Truth Commission where he implicated Public Enterprises Minister Stella Sigcau in corruption when she was a Transkei cabinet minister.
Holomisa told the commission in May that Sigcau had received a R50,000 cut from a R2 million bribe paid by hotel magnate Sol Kerzner to then Transkei prime minister George Matanzima for exclusive gambling rights.
"The committee might have come to a more lenient sentence, that is, suspension or a public rebuke," the judgment said.
However, further charges related to Holomisa's subsequent claims that the ANC was corrupt and that its leadership, including Deputy President Thabo Mbeki, had accepted favours from hotel magnate Sol Kerzner, could not be separated "as he is not charging individuals, but officials and leaders of the ANC".
Holomisa's claims of ANC corruption and that the party was using its power to prevent Kerzner's prosecution on bribery charges, "are very serious charges".
"Accordingly all charges were considered as a whole."
The committee had decided that it could not simply suspend or publicly rebuke Holomisa as this "would not remove his membership, but simply remove some of the privileges of his membership".
"They have therefore, taken the strongest possible option allowed in the constitution. That of expelling H B Holomisa from the ANC once and for all.
"This is the final decision that stands and can only be overturned by the NEC if they find this necessary. Until this point, H B Holomisa, stands expelled from the ANC."
The committee said it believed it had given Holomisa a fair trial.
It had postponed the first hearing after advising him that he had not been given sufficient notice of the new charges against him, while the second hearing was also postponed because Holomisa had been ill.
Holomisa had then written a letter asking for further information relating to his charges and had received a rely.
"At the hearing today, he presented another document raising concerns on procedure, to which most of the concerns a ruling had already been made," the committee said.
It again explained that Zuma's presence on the disciplinary committee would not prejudice his case.
Zuma had not been present at the ANC national working committee meeting in which Holomisa was branded a liar for claiming that Kerzner had donated funds to the ANC's 1994 election campaign. President Nelson Mandela later confirmed that Holomisa's claim was in fact correct.
Other procedural objections raised by Holomisa were related to the charge sheet and the committee believed he could deal with these in his defence, the ANC said.
Holomisa questioned the committee's impartiality on the basis that that Sun International, which Kerzner formerly headed, had acknowledged that it had offered Cabinet ministers free accommodation and hospitality.
He said he could not be guaranteed a free trial unless the ANC leadership investigated whether any Cabinet members, including those sitting on his disciplinary inquiry and NEC members who might hear his appeal, had accepted such an offer.
A postponement would therefore be necessary, Holomisa said.
The committee had agreed that the hearing should not be postponed, but that the "prosecutor", Alec Erwin, should proceed to read out the charges and that Holomisa could use the Sun International letter he handed in as evidence in his defence.
It had also been explained to Holomisa that he should remain in the hearing, since he could always exercise his right to appeal to the NEC.
"It was put clearly that the proceedings would continue with or without him. At that point H B Holomisa left defiantly."