A mixture of information on IPSAS, drawn from a variety of sources, includes IPSAS briefing notes, comments from experts, media, governments and academics on accrual accounting, and examples of the impact that good accounting can have on organizations' effectiveness and financial well-being. The aim of this information is to describe IPSAS and explain why independent, good quality, accrual accounting standards are important to achieve improvements in governance, accountability, transparency and financial management.
Annex 1 from the General Assembly report A/60/846/Add.3 (May 12 2006) provides a one page overview of IPSAS within the context of United Nations System accounting, International Financial Reporting Standards and accounting by other international organizations such as the World Bank, OECD and European Commission.
One important difference between IPSAS and United Nations Accounting Standards (UNSAS) is that IPSAS require accounting on a full accruals basis, whereas UNSAS accounting is on a modified accruals basis that is very close to cash accounting. This FEE paper discusses the benefits of accrual accounting
The Swedish Government's Finance Ministry explains, in this excerpt from a 2001 report, that the main reason for the Government's shift to full accrual accounting was 'to facilitate the implementation of management by results.'
The International Public Sector Accounting Standards Board (IPSASB) is responsible for developing IPSAS. The IPSASB is a dedicated, expert, independent international standard setting body, which uses strong due process, including public consultation and public meetings. This is the link to the IPSASB official website.