Self-testing for HIV has great potential to broaden access to HIV testing, the 20th International AIDS Conference in Melbourne heard last week. But for self-testing to play a key role in reducing undiagnosed infection, the most appropriate models of service delivery need to be defined, systems for linkage to care need to be established, the tests themselves need to be easier to use, and national policies and regulations need to reviewed, so as to create a more attractive market for commercial manufacturers.