Anyone who has worked as a federal political staffer or at Parliament House in Canberra can now give feedback on their experience to an inquiry led by Australia's Sex Discrimination Commissioner Kate Jenkins.

She is set to report back with recommendations by November.

Finance Minister Simon Birmingham has assured those looking to provide a submission their confidentiality will be paramount, after laws were changed to ensure feedback could not be made public through freedom of information.

"I encourage all who wish to participate to do so with confidence," Senator Birmingham said on Thursday.

"Legal protections are in place to ensure confidentiality along with additional supports where needed. Participation is important to help achieve effective improvements to culture and systems."

Former and current political staffers can make written submissions to the review or have a confidential interview outlining their experiences, whether positive or negative.

The inquiry was sparked after former Liberal staffer Brittany Higgins went public with allegations she was raped by a colleague at Parliament House in 2019.

She accused the government of making her choose between reporting the incident or continuing her career.

Ms Higgins' experience also resulted in national rallies about the mistreatment of women.

She has since had a conversation with Prime Minister Scott Morrison, where the two agreed about the need to reform the toxic workplace culture faced by political advisers.

The government also faced widespread backlash over its handling of historical rape allegations against senior minister Christian Porter, who vehemently denies the claims and remains in cabinet.

Australian Associated Press