International Organization of Supreme Audit Institutions


The International Organization of Supreme Audit Institutions is a worldwide affiliation of governmental entities. Its members are the Chief Financial Controller/Comptroller General/Auditor General Offices of nations.
INTOSAI was founded in 1953 in Havana, Cuba. Thirty-four audit organizations formed the group originally and as of 2010 the current membership includes 193 institutions.
The members of INTOSAI are the primary external auditors of the United Nations. The UN's General Assembly appoints the UN Board of Auditors among the INTOSAI member representatives.
INTOSAI holds a triennial conference entitled the International Congress of Supreme Audit Institutions.
It publishes the quarterly International Journal of Government Auditing. Examples of its major publications are:
The International Standards of Supreme Audit Institutions are a benchmark for auditing public entities.

The "INTOSAI Auditing Standards" had been approved by the INCOSAI in 1998 and updated in 2001. In its strategic plan 2005-2010, the INTOSAI decided to "provide an up-to-date framework of professional standards", so the INTOSAI Professional Standards Committee decided to merge the existing and new INTOSAI standards and guidelines into a framework.

The framework comprises all documents endorsed by INCOSAI with the purpose of guiding the professional standards used by SAIs
The ISSAIs can be found at and .
The list of ISSAIs is in the table below:
Hierarchical level of the textISSAI seriesNameNotesLink to ISSAI document
Level 1: Founding PrinciplesISSAI 1The Lima Declaration Comprehensive precepts on auditing in the public sector
Level 2: PrerequisitesISSAI 10-40Prerequisites for the Functioning of Supreme Audit Institutions* The 'ISSAI 30' Code of Ethics is the statement of values and principles guiding the daily work of the auditors. One of the principles outlined in the Code of Ethics is the statutory auditor’s obligation to apply generally accepted auditing standards.
Level 3: Fundamental Auditing PrinciplesISSAI 100-400Basic Principles, General Standards, Field Standards, and Reporting Standards
Level 4: Auditing GuidelinesISSAI 1000-1810Financial Audit Guidelines
ISSAI 3000-3100Performance Audit Guidelines
ISSAI 4000-4200Compliance Audit Guidelines
ISSAI 5000-5010Guidelines on auditing International Institutions
ISSAI 5100-5140Guidelines on Environmental Audit
ISSAI 5200-5240Guidelines on Privatisation
ISSAI 5300-5399guidelines on IT-audit
ISSAI 5400-5499Guidelines on Audit of Public Debt
ISSAI 5500-5599Guidelines on Audit of Disaster-related Aid
ISSAI 5600-5699Guidelines on Peer Reviews
Guidance for Good governanceINTOSAI GOVs 9100 - 9230Internal Control and Accounting Standards

Two main types of audit

The INTOSAI Auditing Standards distinguish basically two types of audit that a government auditor may perform:

Regularity audit

A Regularity audit or Statutory audit is a financial audit of the financial reporting or budget reporting of the audited entity.
In a regularity audit, the audit report contains the auditor's opinion.

Performance audit

Performance audit refers to an examination of a program, function, operation or the management systems and procedures of a governmental or non-profit entity to assess whether the entity is achieving economy, efficiency and effectiveness in the employment of available resources.
In a performance audit, the report should contain a statement of assurance on those items tested for compliance, as the auditor's conclusion.
The INTOSAI's Performance audit corresponds to the Review Engagements or "Assurance Engagements other than Audits" of the IFAC.

Adoption by intergovernmental organizations

In addition to the INTOSAI members, the following intergovernmental organizations have adopted INTOSAI AS:
The Institute of Internal Auditors is among the four associated members of the INTOSAI. The INTOSAI is a strong advocate for the establishment of Independent Internal audit in public entities.
The guidance "INTOSAI GOV 9100" states:

Memberships

The following countries are members of the INTOSAI:

National

Supranational Organisations