Aged care quality and safety commissioner Janet Anderson says elderly Australians are still being sexually abused in aged care facilities, more than a year after the royal commission was established.

"We continue to receive reports through the compulsory reporting process which suggests that there remains an incidence of assaults in services which still needs to be attended to," Ms Anderson told a Senate estimates hearing in response to a question about sexual abuse.

Reports of sexual abuse of aged care residents are ongoing, the independent commissioner says.

The Royal Commission into Aged Care Quality and Safety is preparing to hand its interim report to the federal government next week.

Asked if she was confident aged care providers had complied with requests to put systems in place to prevent assaults, Ms Anderson - who was appointed head of the newly created Aged Care Quality and Safety Commission in January - said: "I believe it is still a work in progress."