West Australian public servants have voted overwhelmingly in favour of a new employment agreement that will see them get an additional public holiday and immediate $1000-a-year pay rise.

The CPSU/CPA has claimed a win for members with the new employment agreement. Credit:Rohan Thomson

The public service union locked horns with the WA Labor government over its initial offer of a flat $1000 per annum pay rise, in line with its controversial wages policy introduced when the party came to power in 2017.

After a union backlash the government returned to discussions with the $1000 raise but changes to several conditions including 12 weeks superannuation on unpaid parental leave and a new public sector holiday day-in-lieu for Easter Sunday.

The new agreement covers 38,000 public servants and 87 per cent of CPSU/CSA members voted yes.