This article discusses UK public sector assets, liabilities and obligations. Developments in reporting the public sector’s liabilities and obligations are outlined – including those relating to the National Accounts, the fiscal measures and the published accounts of UK public sector bodies. As in previous ONS articles on this subject, indicative quantifications, using currently available published figures, are presented for public sector assets, obligations and net worth. Developments such as the creation of the Office for Budget Responsibility (OBR), the publication of the first UK Whole of Government Accounts (WGA) and their implications for future work are discussed.