Open finance enables the sharing of, and access to, financial sector data. This paper analyses the benefits, risks and implementation challenges of Open finance and provides policy recommendations for the safe and successful implementation of such data-sharing frameworks in finance. It considers the impacts of providing access to customers’ financial data and how to do this responsibly and safely, with due consideration for data privacy. The paper also discusses other consumer safeguards, notably related to consent and liability. Finally, it considers whether there is a need to support the development of technical infrastructure to promote data interoperability.