This report to Parliament summarises the results of financial audit work undertaken on behalf of the Comptroller and Auditor General in 2006, on the 2005-06 accounts of United Kingdom central government bodies and highlights key issues arising from that work. The Comptroller and Auditor General is the appointed auditor of all United Kingdom central government departments, executive agencies, and a wide range of other public bodies. In total, the Comptroller and Auditor General audits approximately 470 accounts per year, incorporating total expenditure and revenue of approximately £800 billion. In reporting the results of audit examinations, this report focuses upon the Comptroller and Auditor General's audits of the receipts of revenue and of public debt and reserves, as well as commenting upon the quality and timeliness of financial reporting and the other information accompanying the financial statements of the spending departments, their agencies and non-departmental public bodies. It also discusses the reporting of significant losses by departments and progress towards the future compilation of the whole of government accounts.