The Department of Human Services (DHS) has reported log-on error rates as high as 15 per cent for its much-criticised myGov site and is now looking at how to improve the user experience by potentially removing the use of meaningless but unique numbers (MBUNs), department officials said.

DHS has come under severe criticism for its digital services in the last year, particularly over problems logging in to file tax returns with the ATO and report income for Centrelink. MyGov, which has about 8.6 million registered users and is accessed 200,000 times a day, also provides the gateway for consumers to log on to the My Health Record (PCEHR) and for Medicare transactions.