Nigeria subsidises the cost of petroleum products for its citizens, but corruption means that the cost is rising and to maintain the subsidy, Nigeria has sought financial support from international financial institutions, such as the World Bank and International Monetary Fund. However, this support is contingent on neoliberal economic policy reform, in which the World Bank calls for the removal of petroleum product subsidies and the implementation of Western ‘honour’-based regulatory frameworks, that is, International Financial Reporting Standards (IFRS) and International Public Sector Accounting Standards (IPSAS), to improve transparency and accountability. Considering endemic corruption in the Nigerian cultural and socio-political context, where political elites can override any rule and politicians, public officials, and professionals can intentionally manipulate accounting records, we examine the limits of governance/accounting frameworks and explore the boundaries of accountants’ oversight function. In particular, we discuss the impact of ‘honour’-based regulatory frameworks, such as IFRS and IPSAS, on transparency and accountability in the Nigerian oil and gas sector and in the government subsidy programme. This study challenges the neoliberal assumption that Western ‘honour’-based IFRS and IPSAS, widely adopted in developed countries where fraud is rare, can improve transparency and accountability in developing economies like Nigeria, where corruption is endemic.