The following year, it renamed itself the "Independent Socialist Party" and was joined by former UK Member of Parliament Bernadette McAliskey.
The party entered discussions with the Socialist Workers' Movement (SWM), with the aim of forming a joint organisation.
A fusion was agreed but subsequently narrowly rejected by a membership conference.
The SWM later, 1978, joined the Socialist Labour Party.
As a result, the Independent Socialist Party decided to disband.