Editor’s note: This is general educational information about auditor appointment rules. It is not investment advice, and the regimes, thresholds and dates described below come from the regulations and official announcements listed at the end.
In most markets a company chooses its own auditor, subject to a shareholder vote and to independence rules. Korea took a different route. Under the system introduced by the Act on External Audit of Stock Companies, which took effect in November 2018, a company picks its own auditor for six years and then the Securities and Futures Commission, a body under the Financial Services Commission, directly designates an external auditor for the following three years. The regulator does not merely approve the choice. It makes it.
Why the Appointment Was Taken Away
The reform arrived on what the FSC describes as a broad consensus for overhauling the accounting system with the aim of strengthening the autonomy of auditors. The problem it addressed is structural rather than moral. An auditor whose engagement is renewed by the management it audits has an interest in the relationship continuing, and every safeguard around that conflict is a second-best fix for an incentive that remains in place. Periodic designation removes the incentive for one engagement in every nine years by taking the appointment out of the company’s hands entirely.
Korea calls the system periodic designation, and the six-plus-three pattern is its defining feature. It is not rotation in the ordinary sense, because the company is not simply required to change firms. It is a transfer of the appointment decision to a regulator for a defined stretch of time.
Europe Solved the Same Problem With Duration
The European approach to the same conflict works on the clock instead. Regulation 537/2014 provides that the initial engagement of a statutory auditor or audit firm, taken together with any renewals, must not exceed a maximum duration of 10 years for a public-interest entity. Member States may set a shorter maximum, or require a longer initial engagement than one year.
Extensions exist but are conditioned. The maximum may be extended to 20 years where a public tendering process is conducted under Article 16 and takes effect on expiry of the ordinary maximum, or to 24 years where more than one auditor or audit firm is engaged simultaneously and the audit results in a joint audit report. Any extension requires a recommendation from the audit committee and a proposal to the general meeting of shareholders that is then approved. Once the maximum has run, neither the auditor nor members of its network within the Union may audit the same public-interest entity for the following four-year period, and a competent authority may grant only one further engagement of no more than two years on an exceptional basis.
The two designs answer the same question differently. Europe limits how long one relationship may last and leaves the choice with the company and its shareholders. Korea leaves the duration alone and takes the choice away for part of the cycle.
The Korean System Has Been Under Revision Since 2023
Korea’s own assessment of the reform has been mixed, and the FSC has said so. On June 12, 2023 it announced a package of accounting improvements, noting that in the five years since the 2017 revision of the Act on External Audit of Stock Companies experts generally saw an improvement in accounting transparency, while businesses questioned whether the benefit outweighed the cost.
The specific burden the FSC measured was the internal accounting control system. The cost of setting one up and maintaining it is estimated at about 90 percent of what companies pay in audit fees, and a study by the Korea Accounting Association found the relationship between having a separate internal accounting control system and improved transparency was not clear for companies with less than KRW2 trillion in assets. The FSC therefore postponed the external audit requirement on the consolidated internal accounting control system for companies below that threshold for five years, from 2024 to 2029, while companies at KRW2 trillion or more proceeded on schedule with the option of a maximum two-year postponement. Newly listed small and medium-sized companies with assets of KRW100 billion to KRW500 billion received a three-year postponement, and companies disclosing a consolidated internal control audit report were relieved of the duty to disclose a separate internal accounting audit report.
Earlier measures had moved in the same direction. Listed firms with less than KRW100 billion in assets were exempted from the external audit requirement on their internal accounting control system, with a review rather than an audit required, and the definition of a large unlisted firm, which drags a company into listed-company accounting obligations, was raised from KRW100 billion to KRW500 billion in assets. An accounting support centre for smaller companies was set up at the Korea Exchange, and the whistleblower reward for reporting accounting fraud was raised by three times.
The Exemption That Ties Audit to Governance
The most revealing recent change connects the designation system to the governance debate. Among the incentives announced under the Corporate Value-up Program, the FSC proposed exempting companies from the periodic external auditor designation requirement where they already have a governance structure capable of effective internal audit. A corporate governance review committee of external authorities and third-party experts would evaluate and select those companies, and the Securities and Futures Commission would deliberate before granting an exemption for a set period. Specific evaluation standards and methods were to be settled in the second quarter, with the exemption expected to take effect in 2025 after the relevant regulations were revised.
The FSC’s stated reasoning links the two files directly. It described the mandatory designation requirement as an unnecessary burden for companies that already run an effective internal audit process, and framed the removal of that burden as part of addressing the governance weaknesses cited as a cause of the Korea discount.
Analysis: Designation Is a Statement About Who Is Trusted
Every auditor appointment rule is an answer to one question: who is least conflicted when choosing the person who checks the accounts. Europe’s answer is the audit committee and the shareholders, constrained by a clock. Korea’s answer, for three years in nine, is the regulator.
The exemption proposal is therefore more consequential than it looks, because it changes the answer conditionally. A company with a governance structure certified by a review committee gets the appointment back. That converts designation from a universal rule into a default that good governance can switch off, and it makes the review committee’s standards the operative test. Those standards, rather than the designation cycle itself, become the thing worth reading once they are published.
The cost data explains the pressure behind these revisions. If the internal accounting control system costs about 90 percent of audit fees, then the compliance package around the audit is nearly as expensive as the audit, and the postponements for companies under KRW2 trillion in assets track the finding that the evidence for the benefit was least clear below that threshold.
What none of these documents establishes is whether designated auditors produce different audit outcomes than chosen ones. The FSC reports expert opinion that transparency improved after the reform and business opinion that the cost was too high, which are assessments rather than measurements. A reader wanting to judge the system would look for the frequency of modified opinions, restatements and enforcement actions in designated years against self-appointed years, and for whether the exemption, once granted, changes either.
