Journalists at the Financial Times will protest next week at nine threatened compulsory redundancies.
Staff will hold a mass meeting in their canteen on Thursday, and will be addressed by Tony Benn, a former Labour cabinet minister and National Union of Journalists member of honour.
They will also wear stickers protesting at the cuts.
The Financial Times announced this week it was cutting 80 jobs, including 20 journalists.
It was seeking voluntary redundancies, but only nine journalists are understood to have come forward – meaning 11 could be forced out.
The decision to protest was taken unanimously at a 100-strong chapel meeting earlier this week.
The NUJ said staff had seen a management memo, which “makes it clear that more jobs will go in production in the future”.
The document outlined a so-called “create-craft-complete” model for copy flow – but staff have dubbed it “cut-cut-cut”.
NUJ head of publishing Barry Fitzpatrick said: “It is the first time that compulsory redundancies have been threatened at the Financial Times.
“The FT remains one of the most profitable media companies and they have no need to make compulsory redundancies.
“They are risking a great rift in their relationship with their journalists.”
The Financial Times declined to comment on the protest. On the redundancies, a spokesman said a consultation was underway.