The Government said it was "disappointing" that the PCS union is planning three months of industrial action, including a huge strike on Budget day.
A Cabinet Office spokesman said: "It is disappointing that, yet again, the PCS insist on pushing for futile action which benefits no-one, and damages the services they deliver to the public."
More top news
The health watchdog has issued new guidance on staying safe in the sun.
The Premier League have announced their new branding for the 2016/17 season, which won't be sponsored.
Andy Murray has become a father for the first time after his wife Kim Sears gave birth to a baby girl.