Australian customs and immigration officials have confirmed they will walk off the job from Thursday, likely creating big delays for Easter travellers.

The week-long strike, which will include agriculture, immigration and border protection officials is due to a spat with the federal government over a two-year wage freeze.

After Thursday, airport workers are expected to take part in rolling stoppages over the Easter weekend, delaying but not preventing international travel from Australian airports.

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On Monday, the first in a number of public sector strikes will also take place, with staff at Medicare, Centrelink, the Australian Tax Office, Defence, the Bureau of Meteorology, the Department of Prime Minister and Cabinet and the Bureau of Statistics all expected to walk out.

Medicare staff will also strike on Monday over wage disagreements. Photo: AAP

The strikes will affect the public’s ability to deal with Centrelink and Medicare on Monday.

The Department of Education, Department of Environment, GeoScience Australia, IP Australia and the Administrative Appeals Tribunal will also be affected.

The Community and Public Sector Union (CPSU) said employees were fed up after two years of negotiations over pay and conditions, with no deal struck.

CPSU national secretary Nadine Flood said the government was trying to remove family-friendly conditions that allowed employees to balance work and parenting responsibilities.

She said the industrial action should not come as a surprise.

“The government is pursuing cutting workers rights, cutting jobs, a wage freeze, a low pay offer and refusing to talk,” she said.

Wage offers to the Australian Tax Office, Department of Human Services and Border Protection were all rejected by at least 80 per cent in staff votes.

Public Service Minister Michaelia Cash said the union would better service its members by negotiating in good faith.

– with ABC