Abstract
This study evaluated the impact of International Public Sector Accounting Standard (IPSAS) on the accountability of public fund in Nigeria which results in reliability, credibility and integrity of financial reporting in public sector organization in Nigeria. The purpose of this study is to ascertain the impact of IPSAS on reliability, credibility, and integrity of financial reporting. The findings or result of the study showed that the implementation or adoption of IPSAS will improve the reliability, credibility and integrity of financial reporting in federal Government administration in Nigeria. Also, it was observed that implementation of IPSAS based standards can facilitate efficient internal control and result based financial management in the public sector of Nigeria. Equally, it was found that implementation of IPSAS can enhance Federal Government’s goal to significantly deliver services more effectively and efficiently