Some staff at Services Australia will be participating in a 24 hour stop work, as part of APS-wide bargaining that is being led by Australian Public Service Commission.
Services Australia General Manager Hank Jongen said anyone who can delay their business should do so.
"We will have less staff and if you can delay visiting or calling us until Tuesday or later in the week, please do,"Mr Jongen said.
“Available staff will be prioritising support to those who need immediate assistance, including people in crisis or experiencing financial hardship.
“Payments will not be affected. Anyone expecting payments on Monday or Tuesday will receive them as usual, and those who need to report their income will be able to do so.
”We respect that lawful industrial action is part of the process for bargaining, and we appreciate our customers’ patience during this time.”
Services Australia is encouraging Centrelink and Medicare customers to do what they can online and to only visit a service centre or call if it is absolutely necessary.
"Service centres and phone lines will be open, but will be busier than usual, we ask customers who don’t need to contact us urgently to use our online and self-service options.
“These will not be affected and will continue to be available 24/7,” Mr Jongen said.
If any service centres need to close due to staff shortages, we will share updates at findus.servicesaustralia.gov.au/
People can find out more about self-service and online options at servicesaustralia.gov.au/self-service