Strike action by United Kingdom Public Servants is expected to be centred on 15 March, when Chancellor of the Exchequer, Jeremy Hunt announces his Budget.
Around 133,000 members of the Public and Commercial Services (PCS) union will now strike on that day.
Additional Public Servants who voted to join colleagues include staff at Customs, the Care and Quality Commission and the Welsh Government.
The PCS union represents thousands of people who work in Government Departments as well as those at organisations such as Ofsted, the Maritime and Coastguard Agency and the Border Force.
It has been calling for a 10 per cent pay rise, better pensions, job security and no cuts to redundancy terms.
The Government has said the union’s demands would cost an “unaffordable £2.4 billion” ($A4.2 billion) and has offered a pay increase of between two and three per cent.
A Government spokesperson said plans were in place to keep “essential services running and to minimise disruption on 15 March”.
Mr Hunt is to outline his plans for taxation and spending in the Budget.
It will be announced at a time when price rises have been squeezing household budgets and workers across different sectors, ranging from healthcare to railways, have taken industrial action over pay.
Inflation hit an annual rate of 10.1 per cent in January but despite this, General Secretary of the PCS, Mark Serwotka said Ministers has consistently refused to increase their pay offer.
“They might have hoped we’d go away if they buried their heads in the sand, but they’ve under-estimated the determination of our members, who were praised for keeping the country running during the pandemic, but now are taken for granted,” Mr Serwotka said.
London, 2 March 2023