Ireland

As a member of the European Union (EU), Ireland is subject to accounting, auditing, and corporate reporting requirements established in EU Regulations and Directives as transposed into national law. The statutory framework is principally established through the Companies Act 2014, as amended, together with the European Union (Statutory Audits) Regulations 2016 and other implementing legislation. Ireland has aligned its legal and regulatory framework with the EU acquis communautaire as it relates to corporate reporting, statutory audit, and professional oversight.

The financial reporting framework is primarily established under the Companies Act 2014, which incorporates the requirements of the EU Accounting Directive. Under this framework, entities whose securities are admitted to trading on an EU regulated market are required to prepare consolidated financial statements in accordance with International Financial Reporting Standards (IFRS) Accounting Standards as adopted by the EU. Other entities generally prepare financial statements in accordance with the Companies Act 2014 and applicable Irish generally accepted accounting principles, including Financial Reporting Standard (FRS) 102. Small and micro entities may avail themselves of simplified reporting and audit exemption provisions subject to statutory eligibility criteria.

Recent amendments to the Companies Act 2014 and related regulations have introduced sustainability reporting requirements arising from the Corporate Sustainability Reporting Directive (CSRD).

The Irish Auditing and Accounting Supervisory Authority (IAASA) is the independent competent authority responsible for oversight of the statutory audit profession and corporate reporting supervision in Ireland.

Statutory audit requirements are established under the Companies Act 2014 and the European Union (Statutory Audits) Regulations 2016, which transpose the EU Statutory Audit Directive and related audit reform measures into Irish law. Companies that do not qualify for audit exemption are subject to statutory audit requirements. The legislation regulates the approval, registration, supervision, quality assurance review, investigation, and discipline of statutory auditors and audit firms.

Audits in Ireland are conducted in accordance with International Standards on Auditing (Ireland), which are based on International Standards on Auditing issued by the International Auditing and Assurance Standards Board and adopted by IAASA for application in the jurisdiction.

Ireland has not adopted the IFRS for Small and Medium-sized Entities (IFRS for SMEs). Small and medium-sized entities instead apply the differentiated financial reporting requirements established under the Companies Act 2014 and applicable Irish generally accepted accounting principles.

Only statutory auditors and statutory audit firms are regulated at the state level in Ireland. The accountancy profession is regulated through a shared model under the Companies Act 2014, as amended, and the European Union (Statutory Audits) Regulations 2016. The Irish Auditing and Accounting Supervisory Authority (IAASA) is the independent statutory authority responsible for public oversight of the audit profession and for supervising how prescribed accountancy bodies regulate and monitor their members.

The prescribed accountancy bodies (PABs) are professional accountancy bodies that fall within IAASA’s supervisory remit. IAASA supervises their regulatory processes, including how they monitor and regulate members, reviews regulatory reports, and approves rules, regulations, and standards applicable to members. The PABs currently operating in Ireland include the Association of Chartered Certified Accountants, Association of International Accountants, Chartered Institute of Management Accountants, Chartered Institute of Public Finance and Accountancy, and Chartered Accountants Ireland.

Recognised accountancy bodies (RABs) are PABs that have been granted recognition to approve and register statutory auditors and audit firms. RABs are responsible for licensing, education, quality assurance review of non-public interest entity audit work, and investigation and discipline systems for statutory auditors and audit firms, subject to IAASA oversight.

IAASA directly inspects the audit and sustainability assurance work of public interest entities and oversees the RABs in their regulation of statutory auditors and sustainability assurance service providers. IAASA is also responsible for adopting auditing and assurance standards for use in Ireland, corporate reporting supervision for certain issuers, and investigation and enforcement functions under the Companies Act 2014.

Professional accountants working outside the statutory audit function may become members of professional accountancy organizations on a voluntary basis. Members are subject to the education, ethical, continuing professional development, quality assurance, and investigation and discipline requirements established by their respective professional bodies, subject to IAASA oversight where the body is a PAB or RAB.

Independent public oversight of the audit profession in Ireland is established under the Companies Act 2014, as amended, and the European Union (Statutory Audits) Regulations 2016. The Irish Auditing and Accounting Supervisory Authority (IAASA) is the independent competent authority responsible for oversight of statutory auditors and audit firms in Ireland.

IAASA supervises the prescribed accountancy bodies and oversees the recognised accountancy bodies in their regulation of statutory auditors and sustainability assurance service providers. This includes oversight of licensing, education, quality assurance reviews of non-public interest entity audit and assurance work, continuing professional development, professional ethics, and investigation and disciplinary systems.

IAASA directly inspects the audit and sustainability assurance work of public interest entities. Public interest entities include entities with securities listed on a regulated market, credit institutions, and insurance undertakings.

IAASA is also responsible for adopting and issuing auditing and assurance standards for use in Ireland, supervising corporate reporting by certain issuers, and carrying out investigation and enforcement functions under the Companies Act 2014.

IAASA is a member of the International Forum of Independent Audit Regulators.

Association of Chartered Certified Accountants (ACCA)

The Association of Chartered Certified Accountants (ACCA) is a voluntary professional accountancy organization and one of the prescribed accountancy bodies operating in Ireland. ACCA is also a recognised accountancy body under the Companies Act 2014, authorized to approve and register statutory auditors and audit firms in Ireland, subject to oversight by the Irish Auditing and Accounting Supervisory Authority. ACCA is also a recognised supervisory body and recognised qualifying body for statutory audit in the United Kingdom. ACCA is a member of the International Federation of Accountants, Accountancy Europe, and the Consultative Committee of Accountancy Bodies.

Association of International Accountants (AIA)

The Association of International Accountants (AIA) is a voluntary professional accountancy organization established in 1928. AIA is a prescribed accountancy body in Ireland and a recognised qualifying body for statutory audit in the United Kingdom. AIA is not listed by the Irish Auditing and Accounting Supervisory Authority as a recognised accountancy body in Ireland. AIA is a member of the European Federation of Accountants and Auditors for Small and Medium-sized Enterprises.

Accounting Technicians Ireland (ATI)

Accounting Technicians Ireland (ATI) is a voluntary professional body established in 1983 that provides education, training, and certification for accounting technicians and accounting technologists in Ireland and Northern Ireland. ATI is not a prescribed accountancy body or recognised accountancy body in Ireland. It operates as a partner organization of Chartered Accountants Ireland and provides pathways for students and members to continue professional accountancy studies.

Chartered Institute of Management Accountants (CIMA)

The Chartered Institute of Management Accountants (CIMA) is a voluntary professional accountancy organization for management accountants. CIMA is a prescribed accountancy body in Ireland but is not a recognised accountancy body and does not authorize statutory auditors or audit firms in Ireland. CIMA operates as part of the Association of International Certified Professional Accountants and is a member of the International Federation of Accountants through the Association.

Chartered Institute of Public Finance and Accountancy (CIPFA)

The Chartered Institute of Public Finance and Accountancy (CIPFA) is a voluntary professional accountancy organization focused on public financial management and public sector accountancy. CIPFA is a prescribed accountancy body in Ireland but is not a recognised accountancy body and does not award practising certificates in Ireland. CIPFA is a member of the International Federation of Accountants and Accountancy Europe.

Chartered Accountants Ireland

Chartered Accountants Ireland (CAI), formerly the Institute of Chartered Accountants in Ireland, was established by Royal Charter in 1888 and is a voluntary professional accountancy organization. CAI is a prescribed accountancy body and recognised accountancy body in Ireland, authorized to approve and register statutory auditors and audit firms, subject to oversight by the Irish Auditing and Accounting Supervisory Authority. CAI is also a recognised supervisory body and recognised qualifying body for statutory audit in the United Kingdom. CAI is a member of the International Federation of Accountants, Accountancy Europe, and the Consultative Committee of Accountancy Bodies.

The Companies Act 2014, as amended, and the European Union (Statutory Audits) Regulations 2016 establish the quality assurance (QA) review system for statutory audits in Ireland. The Irish Auditing and Accounting Supervisory Authority (IAASA) conducts QA reviews of statutory auditors and audit firms that audit public interest entities (PIEs), while recognised accountancy bodies (RABs) conduct QA reviews of statutory auditors and audit firms that audit non-PIEs, subject to IAASA oversight.

The RABs currently recognised in Ireland are the Association of Chartered Certified Accountants and Chartered Accountants Ireland. Together, IAASA and the RABs operate a QA review framework that covers all statutory audits and is aligned with the relevant requirements of SMO 1.

IAASA has adopted International Standard on Quality Management (Ireland) 1 and International Standard on Quality Management (Ireland) 2 for application in Ireland. The current versions are ISQM (Ireland) 1 Revised May 2026 and ISQM (Ireland) 2 Revised May 2026.

Current Status: Adopted

The professional education framework in Ireland is established through the Companies Act 2014, as amended, the European Union (Statutory Audits) Regulations 2016, and the requirements of prescribed accountancy bodies (PABs) operating under the oversight of the Irish Auditing and Accounting Supervisory Authority (IAASA). IAASA reports that PABs require their members to complete an education process, pass professional examinations, undertake practical training, comply with ethical requirements, and participate in continuing professional development.

For statutory auditors, the recognised accountancy bodies are responsible for education, training, approval, registration, continuing professional development, and monitoring requirements, subject to IAASA oversight. These arrangements cover statutory auditors and members of PABs and are broadly aligned with the relevant requirements of SMO 2.

Publicly available information does not indicate that the current IES have been formally adopted in their entirety at jurisdiction level for all aspiring and professional accountants in Ireland. Accordingly, the IES are assessed as Partially Adopted.

Current Status: Partially Adopted

The Companies Act 2014, as amended, and the European Union (Statutory Audits) Regulations 2016 establish the legal framework for statutory audit requirements in Ireland. The Irish Auditing and Accounting Supervisory Authority (IAASA) is responsible for adopting and issuing auditing and assurance standards for use in Ireland.

Statutory audits in Ireland are conducted in accordance with International Standards on Auditing (Ireland), which are based on International Standards on Auditing issued by the International Auditing and Assurance Standards Board and adapted for Irish legal and regulatory requirements. IAASA adopts these standards for use in Ireland under license from the Financial Reporting Council in the United Kingdom.

IAASA maintains current ISA (Ireland) standards and updates them to reflect revisions to international standards. Current IAASA publications include ISA (Ireland) 315 Revised May 2026 and other updated standards, with IAASA noting recent updates to ISA (Ireland) 600 to reflect conforming amendments arising from ISA (Ireland) 505 Revised March 2024.

Although ISA (Ireland) include jurisdiction-specific references and additional Irish requirements, the full suite of current ISA is adopted for application in all statutory audits.

Lastly, ISA for LCE is not adopted or permitted for statutory audits in Ireland. Statutory audits continue to be conducted using the full suite of ISA (Ireland).

Current Status: Adopted

The Companies Act 2014, as amended, and the European Union (Statutory Audits) Regulations 2016 establish the legal framework for ethical requirements applicable to statutory auditors in Ireland. The Irish Auditing and Accounting Supervisory Authority (IAASA) issues the Ethical Standard for Auditors (Ireland), which applies to statutory audits and is based on the Financial Reporting Council’s Ethical Standard, with amendments for Irish legal and regulatory requirements.

The current Ethical Standard for Auditors (Ireland) 2025 was published by IAASA in April 2025 and is effective for audits of financial statements for periods beginning on or after December 15, 2026, with early adoption permitted. IAASA has stated that the International Code of Ethics for Professional Accountants (including International Independence Standards) forms the basis for the Ethical Standard for Auditors (Ireland) and the codes of ethics of the prescribed accountancy bodies regulated by IAASA in Ireland.

Prescribed accountancy bodies operating in Ireland are subject to IAASA oversight and maintain ethical requirements for their members. The Association of Chartered Certified Accountants adopts the 2025 IESBA Code in full and unaltered. Chartered Accountants Ireland applies a Code of Ethics to all members, students, affiliates, and member firms that is based on the IESBA Code and incorporates additional jurisdiction-specific requirements and guidance.

Although the Irish framework includes jurisdiction-specific legal and regulatory requirements for statutory auditors, the IESBA Code forms the basis of the Ethical Standard for Auditors (Ireland) and the codes of ethics maintained by the prescribed accountancy bodies. The jurisdiction-level framework is aligned with the relevant requirements of SMO 4.

Current Status: Adopted

The Department of Public Expenditure, Infrastructure, Public Service Reform and Digitalisation is responsible for establishing public sector accounting policy and guidance for central government entities in Ireland. Current appropriation accounts remain primarily cash-based, with certain accrual-based information included in the Statement of Financial Position and related notes.

In 2019, the Government approved the transition of central government departments and offices to a new accrual accounting framework based on International Public Sector Accounting Standards (IPSAS). The Department is developing Central Government Accounting Standards (CGAS), which are IPSAS-based and adapted for the Irish financial reporting framework. The first nine priority CGAS have been published and relate primarily to the Statement of Financial Position.

IPSAS have not been adopted in their entirety for all public sector entities in Ireland. However, the development of IPSAS-based CGAS indicates partial incorporation of IPSAS into the national public sector accounting framework. The jurisdiction-level framework is therefore partially aligned with the relevant requirements SMO 5.

Current Status: Partially Adopted

The Companies Act 2014, as amended, and the European Union (Statutory Audits) Regulations 2016 establish the investigation and discipline (I&D) framework for the accountancy profession in Ireland. The Irish Auditing and Accounting Supervisory Authority (IAASA) is responsible for public oversight of the system and supervises how prescribed accountancy bodies (PABs) regulate and monitor their members.

There are currently five PABs operating in Ireland, each of which maintains a formal complaints, investigation, and disciplinary process for its members and member firms. The recognised accountancy bodies (RABs) are responsible for investigation and discipline in relation to statutory auditors and audit firms, subject to IAASA oversight. IAASA also issues guidelines for RABs when performing I&D functions and monitors their compliance with the Companies Act 2014 and IAASA-approved procedures.

IAASA’s oversight includes review of PAB and RAB regulatory activities, supervisory visits, thematic reviews, review of regulatory reports and statistics, and approval of rules, regulations, and standards applied by the bodies to their members. The framework covers professional accountants who are members of PABs and statutory auditors and audit firms regulated through the RABs.

The jurisdiction-level framework incorporates the main requirements of SMO 6.

Current Status: Adopted

The Companies Act 2014, as amended, establishes the financial reporting framework applicable to companies in Ireland. As a member of the European Union (EU), Ireland requires companies whose securities are admitted to trading on an EU regulated market to prepare consolidated financial statements in accordance with International Financial Reporting Standards (IFRS) Accounting Standards as adopted by the EU.

Other entities may prepare financial statements using alternative frameworks permitted under Irish law, including Financial Reporting Standard (FRS) 102, which applies in the United Kingdom and Republic of Ireland, or EU-adopted IFRS where permitted.

The jurisdiction-level framework requires IFRS Accounting Standards as adopted by the EU for all domestic publicly accountable entities in consolidated general purpose financial statements and is aligned with the relevant requirements of SMO 7. Accordingly, IFRS Accounting Standards are assessed as Adopted.

Ireland has not adopted the IFRS for Small and Medium-sized Entities Accounting Standard; eligible entities instead apply FRS 102 or other frameworks permitted under Irish law.

Current Status: Adopted

Relevant Organizations

• Accounting Technicians Ireland (ATI)
• Association of International Accountants (AIA)
• Chartered Accountants Ireland (CAI)
• Chartered Accountants Regulatory Board (CARB)
• Companies Registration Office (CRO)
• Financial Reporting Council (FRC)
• Institute of Certified Public Accountants in Ireland (CPA Ireland)
• Irish Auditing and Accounting Supervisory Authority (IAASA)

Relevant Legislation

• Companies Act, 2006, United Kingdom (UK)
• Companies Act 2014, Ireland
• CPA Ireland Byelaw 13 “Practice & Audit Regulations”
• IAASA, Statutory Instrument No. 97 of 2012, Ireland

Relevant Publications

• ACCA, IPSAS Implementation: Current Status and Challenges, October 2017.
• Accountancy Europe, Definition of Public Interest Entities in Europe: State of Play after the Implementation of the 2014 Audit Reform, November 2017.
• Accountancy Europe, FEE Survey on Structure and Organisation of the Accountancy Profession across 30 European Countries, March 2012.
• Accountancy Europe, Member State Implementation of Directive 2014/95/EU, 2017.
• CIPFA & IFAC, International Public Sector Financial Accountability Index, 2018.
• FRC, Ethical Standards for Auditors, January 2024
• ICAI, SMO Action Plan, September 2019.
• European Commission, Audit Directive, Transposition Status, May 24, 2018.
• IAASA, Brexit and its Potential Impact on Audit and Accountancy, May 2018.
• IAASA, Ethical Standard for Auditors (Ireland), April 2017.
• IAASA, International Standards on Auditing for Use in Ireland, 2018.
• IAASA, Profile of the Profession: 2014, May 2015.
• IFIAR, IFIAR Member Profile: Ireland, 2018.
• IFRS Foundation, Jurisdiction Profile: Republic of Ireland, June 2016.
• Mondaq, Ireland: Companies (Statutory Audits) Act 2018, October 2018.