It is against the law to discriminate against a person because of his or her marital or relationship status. This includes people who are single, married, in a de facto relationship, separated, divorced, widowed or never married. It also includes people in same-sex relationships. There are some limited exemptions.

Discrimination happens when a person is treated less favourably than another person with a different marital or relationship status would be treated in the same or similar circumstances.

It is also discrimination when there is an unreasonable requirement or practice that is the same for everyone but has an unfair effect on people of a particular marital or relationship status.

Example: A company that offers only married employees working in remote locations allowances and leave to visit their families may be disadvantaging employees who are single or in de facto relationships.