DIBP have updated their policy on permission to work beyond 6 months for working holiday visas (417 visa) as follows …
Au pairs
Au pairs who can demonstrate they have worked for a family with young children for 6 months, can be approved for a further 6 months employment (total 12 months).
Other exceptional circumstances
While the WHV holder is waiting for the decision on a visa that can be granted onshore for example Subclasses 457, 820, 402, 186 and 187
While the WHV holder is receiving workers compensation as a result of a workplace injury
While undertaking disaster recovery work following a declared major disaster
In circumstances where the workplace has been affected by a major disaster and the VH was unable to attend work due to the disaster