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Form A FAQ

The FRC does not accept any liability to any party for any loss, damage or costs howsoever arising, whether directly or indirectly, whether in contract, tort or otherwise from any action or decision taken (or not taken) as a result of any person relying on or otherwise using this document or arising from any omission from it.

© The Financial Reporting Council Limited 2026

The Financial Reporting Council Limited is a company limited by guarantee. Registered in England number 2486368. Registered Office: 13th Floor, 1 Harbour Exchange Square, London, E14 9GE

Registration

1. Why do third country auditors have to register with authorities in the UK?

United Kingdom (UK) law establishes the minimum regulatory standards that must be met when conducting statutory audits. Given the interconnected nature of global capital markets, it is essential that auditors from third countries perform high quality audit work for companies whose transferrable securities are admitted to trading on UK capital markets.

UK law requires that relevant statutory auditors and auditors from third countries be included on a public register and be subject to a regulatory regime that provides safeguards and oversight equivalent to the minimum standards applied to UK auditors.

2. Which auditors come within the definition of a third country auditor?

Under UK law, a third country auditor is defined as "a person, other than a person eligible for appointment as a statutory auditor, who is eligible to conduct audits of the accounts of bodies corporate incorporated or formed under the law of a third country in accordance with the law of that country".

Under the current UK legal framework, an audit firm that is already registered as a statutory auditor under section 1212 of the Companies Act 2006 does not require separate registration as a third country auditor. In such cases the audit firm is already eligible for appointment as a statutory auditor and the additional third-country registration requirement does not apply.

3. Who should use Form A?

Form A should be used by auditors from countries whose home country is an “equivalent” or "transitional” third country.

The following countries are currently recognised as equivalent:

Country 1 Country 2 Country 3
Abu Dhabi Australia Brazil
Canada China Dubai Financial centre
Guernsey Indonesia Isle of Man
Japan Jersey Malaysia
Country 1 Country 2 Country 3
Mauritius New Zealand Singapore
South Africa South Korea Switzerland
Taiwan Thailand Türkiye
USA

The following countries are equivalent in respect of audits of financial statements for periods starting on or after 1 January 2021:

Country 1 Country 2 Country 3 Country 4
Austria Belgium Bulgaria Croatia
Cyprus Czech Republic Denmark Estonia
Finland France Germany Gibraltar
Greece Hungary Iceland Ireland
Italy Latvia Liechtenstein Lithuania
Luxembourg Malta Netherlands Norway
Poland Portugal Romania Slovakia
Slovenia Spain Sweden

There are currently no countries that hold transitional status.

A non-UK auditor whose home country is not listed above must use Form B.

You should contact the FRC at [email protected] if you are uncertain as to which form you should use.

4. What is a "relevant audit client”? (Question 8)

A "relevant audit client” is any company incorporated outside the UK that has transferable securities admitted to trading on a UK regulated market, and for which the applicant issues an audit report on its annual or consolidated financial statements.

Companies that issue only debt securities are exempt from this definition if the denomination of each debt security is equal to or above following thresholds:

  • For securities admitted to trading on or before 31 December 2010: A denomination of GBP 35,000 per unit (or equivalent in another currency at the date of issue).
  • If admitted to trading after 31 December 2010: A denomination of GBP 70,000 per unit (or equivalent in another currency at the date of issue).

If the denomination of the debt securities is below GBP 35,000 (for earlier admissions) or below GBP 70,000 (for later admissions), the exemption does not apply, and the company is treated as a relevant audit client.

5. Does registration entitle a third country auditor to provide statutory audit services in the UK?

No. Registration as a third country auditor does not confer the right to undertake statutory audits in the UK. It provides approval solely for the purpose of auditing third country companies whose securities are admitted to trading on a UK regulated market, in line with UK regulatory requirements.

This registration does not:

  • Authorise the auditor to carry out statutory audits under UK Companies Act 2006, nor
  • Recognise or validate the professional qualifications of third country auditors for the purposes of UK statutory audit work.

In effect, third-country auditor registration is limited to meeting UK obligations for oversight of auditors of non-UK issuers with securities on UK regulated markets and does not extend to the wider statutory audit regime.

6. What are the requirements for registration as a third country auditor for applicants from countries that have been assessed as either “transitional” or “equivalent”?

To be registered as a third country auditor, an applicant must satisfy all the requirements of the registration process. Third country auditors from countries that are deemed to be equivalent or transitional have less requirements to satisfy than third country auditors from other countries. These requirements are reflected in the information requested on Form A.

7. What happens if an applicant is not from a country that has been assessed as either equivalent or transitional?

The full registration requirements apply, i.e. you must apply using Form B.

8. What happens if an applicant does not meet the requirements for registration under UK law?

If a third-country auditor does not meet the requirements for registration, any audit report they issue on a relevant non-UK company with securities admitted to trading on a UK regulated market will have no legal effect in the UK. In practical terms, this means that the company's accounts would be treated as "not audited” for UK regulatory purposes as only audit reports signed by registered third-country auditors are recognised under UK law.

Application procedure

9. When did the system of regulation of third country auditors begin?

Registration in the United Kingdom as a third country auditor applied from 4 November 2008.

10. Will the information submitted by the third country auditor be treated as confidential?

Information submitted to the FRC as part of the application process will be treated as confidential and will be subject to a statutory restriction on disclosure, Section 1224A of the Companies Act 2006. However, the FRC is required to make certain information available on the Register of Third Country Auditors (the Register) that will be electronically accessible to the public (see FAQ 11).

The obligation of professional secrecy shall apply to all persons who are employed or who have been employed by the FRC. This applies, for example, as regards information as to the outcome of an external quality assurance review.

11. What information is required for inclusion in the Register?

The information provided under Items 1.1 to 1.9, 2.1 to 2.2, 3.2, 3.4, 5 and 6.2 of Form A will be stored in the Register in electronic form and shall be electronically accessible to the public.

  • This information includes (amongst other things):
  • Name, address and contact information (including website address) of the firm;
  • The address of each of the firm's offices from which it carries out audits of UK-traded third country companies;
  • Name of primary contact;
  • Legal form of the firm;
  • Registration number and date of registration;
  • Information about any network that the firm belongs to;
  • Name and address of any other authority or body responsible for authorising the firm to conduct audits in accordance with the law of a third country and the firm's registration number.

12. Will the information submitted by the third-country auditor be subject to data protection rules?

Yes. All information submitted by a third-country auditor is handled in accordance with UK data protection legislation. However, as noted above in FAQ 11, certain information is required by law to be made publicly available on the Register, and this will be published accordingly.

13. What language should be used for registration purpose?

Applications to the FRC must be in English.

Other information required by Form A

14. What is a network? (Question 3)

Under UK law, a 'network' means an association of persons other than a firm cooperating in audit work through any of the following means:

  1. Profit sharing;
  2. Cost sharing;
  3. Common ownership, control or management;
  4. Common quality management policies and procedures;
  5. Common business strategy; or
  6. Use of a common brand name.

15. What is an affiliate of the applicant? (Question 3.3)

In this context an 'affiliate' means any undertaking, regardless of its legal form, which is connected to the third country auditor by means of common ownership, control or management.

16. What should be included in the description of the applicant's internal quality management system? (Question 4)

The requirements for audit firms' systems of quality management are set out in International Standard on Quality Management (ISQM) 1 and ISQM2. An applicant must demonstrate that its internal system of quality management complies fully with these standards.

A compliant quality management system must provide reasonable assurance that the firm and its personnel:

  • Fulfil their responsibilities in accordance with all applicable professional standards;
  • Meet relevant legal and regulatory requirements; and
  • Perform audit engagements in accordance with those standards and requirements.

The applicant's description of its internal quality management system should, as a minimum, address the firm's policies and/or procedures relating to the following components:

  • The firm's risk assessment process;
  • Governance and leadership;
  • Relevant ethical requirements;
  • Acceptance and continuance of client relationships and specific engagements;
  • Engagement performance;
  • Resources;
  • Information and communication; and
  • The monitoring and remediation process.

The FRC expects an Applicant's approach to quality management to be proportionate to the size, nature and complexity of the firm, ensuring that its policies and procedures are appropriately tailored while still meeting the requirements of ISQM 1 and ISQM 2.

17. What is an external quality assurance review? (Question 7)

An external quality assurance review can be:

  • A peer review under the supervision of a professional body or an independent public oversight body;
  • A review carried out by a professional body;
  • A review carried out by a professional body under the supervision of an independent public oversight body; or
  • An inspection by an independent public oversight body in any jurisdiction.

The external quality assurance review should comprise both an assessment of the firm-wide procedures (including compliance with applicable auditing standards and independence requirements, of the quantity and quality of resources spent, of the audit fees charged and of the internal quality management system of the audit firm) and adequate testing of selected audit files.

18. What if my firm has not been subject to an external quality assurance review? (Question 7)

The obligation to provide information can only apply if an external quality assurance review has been carried out.

19. What auditing standards are acceptable under UK Law (Question 8.1)

Options available

The UK accepts without reservation the use of:

  • International Standards on Auditing (UK) ('ISAs (UK)'), or
  • International Standards on Auditing ('ISAs') as issued by the International Auditing and Assurance Standards Board ('IAASB').

Alternatively, we may accept, after assessment:

  • National auditing standards.

Reporting under national auditing standards

Where a third country auditor proposes to apply national auditing standards, we will consider on a case-by-case basis, at the point of registration or renewal of registration, the acceptability of those standards.

For a third country auditor's proposed auditing standards to be acceptable:

  • They must be considered by the FRC to be equivalent to ISAs as issued by the IAASB (and therefore ISAs (UK)); and,
  • The FRC will need to be confident that they will remain equivalent for the year for which registration is granted or renewed.

For those third countries that declare that their applicable auditing standards are based on ISAs as issued by the IAASB:

  • It should be possible for equivalence to be assessed by a comparison of ISAs with the translated text of the auditing standards applied; and,
  • We will also consider how continuing convergence with ISAs is ensured through a review of the third country's framework for the adoption of new auditing standards.

The decision taken by the UK in its own adoption of ISAs for use as part of ISAs (UK) has no bearing on how we assess the equivalence of any proposed auditing standards to ISAs (as issued by IAASB). Furthermore, acceptance of the national auditing standards in another third country will not influence how we assess those standards.

Auditor's report for audits in accordance with both national auditing standards and ISAs

  • A third country auditor may be required to conduct an audit in accordance with the auditing standards of their client's country of incorporation (the “national auditing standards”) due to national laws and regulations, in addition to having complied with the ISAs or ISAs (UK) in the conduct of an audit in accordance with UK requirements.
  • In such circumstances, the auditor's report may refer to ISAs (or ISAs (UK)) in addition to the national auditing standards (it may 'dual report'). If the auditor's report does this, it should identify the national auditing standards and the country of origin of those standards.
  • For example, 'We conducted our audit in accordance with International Standards on Auditing and [Generally Accepted Auditing Standards] issued in [Country]'
  • See also International Standard on Auditing 700 (Revised) Forming an Opinion and Reporting on Financial Statements for further guidance.

  • The FRC conducts its own audit inspections of third country auditors in countries that are required to follow the full registration requirements. If third country auditors propose to use their national auditing standards and dual report, they will be required to demonstrate that their audits are fully compliant with ISAs or ISAs (UK).

Contact for further information

If in doubt about which standards may be acceptable, please contact the FRC for confirmation at: [email protected]

20. What independence requirements are acceptable? (Question 8.1)

We accept without reservation independence requirements either in accordance with the IESBA Code of Ethics or with ethical standards set by the FRC in the UK.

Where neither of these is used, we will consider on a case-by-case basis the acceptability of standards otherwise applied by the third country auditor.

21. What form of regulation will apply to a firm registering from “equivalent” or "transitional" third countries?

Quality Assurance Reviews

The UK has chosen to disapply the requirement to have external monitoring arrangements of auditors from transitional and equivalent third countries. The UK will not undertake inspections of equivalent or transitional third country audit entities.

However, the UK though reserves the right to undertake quality assurance reviews as part of cooperative arrangements with the competent authority of a third country.

Continuing Oversight

Other than where we are aware of information that calls in question an auditor's continued registration with the FRC (see FAQ 23), we will not undertake active oversight of equivalent and transitional third country auditors beyond requiring the firm to reconfirm its registration annually to ensure that we have up to date information relevant to the firm's continued registration.

Investigation and Penalties

UK Law requires that third country auditors registered with the FRC are subject to the UK system of investigation and penalties for third country auditors.

22. Annual registration fees

Registration fees are payable annually following the issue of an invoice. Annual registration fees are non-refundable, either in full or in part.

If a third coutry auditor withdraws its registration application before approval, or if the FRC determines that the applicant is not eligible for registration, the registraton fee will be refunded in full.

23. In what circumstances will you de-register a third country auditor?

The law in the United Kingdom allows the FRC to remove a third country auditor from the Register if it considers that the third country auditor has/is:

  1. failed to provide updated information;
  2. failed to comply with arrangements for independent external monitoring;
  3. failed to comply with arrangements for independent investigations;
  4. failed to notify the FRC of specified events;
  5. failed to provide the FRC with information that may be reasonably required for the exercise of regulatory functions;
  6. made an application statement that is no longer correct;
  7. failed to apply the auditing standards and independence requirements to which it has referred in its application for registration;
  8. failed to pay the fees;
  9. not a fit and proper person to conduct the audits of the accounts of a UK-traded non-UK company.

Additionally, a firm may be removed from the Register if:

  1. the registered third country auditor has notified the designated body, in writing, that it no longer wishes to remain on the register; or
  2. a competent authority which oversees or regulates the TCA considers that the TCA is not a fit and proper person to conduct audits in the country in which that competent authority is established; or
  3. a competent authority which oversees or regulates the TCA considers that the TCA is not eligible to conduct audits of the accounts of bodies corporate incorporated or formed under the law of that country.

Updating of registration information

24. What does the third-country auditor need to do to update registration information?

You must notify the FRC without undue delay to any changes in the following information.

  1. Any change in the information on the Register so that the Register may be updated. The information included in the public register can be found in FAQ 11.
  2. Any changes or additions to the description of the TCA's internal quality control system.
  3. Whether a quality assurance review has been carried out; and information required by the FRC about the outcome of a quality assurance review.
  4. Names of relevant audit clients lost.
  5. Details of new relevant audit clients.
  6. Notification of any sanctions related to audit responsibilities (firmwide and / or individuals) levied by any audit competent authority with which the firm is registered. This is subject to your local laws, and we expect you to notify the FRC of those that have been made public.

Please notify us of these changes by emailing us at [email protected]

The FRC should be notified within fifteen business days of the change taking effect or publication of the sanction.

If you have further queries, please contact us by e-mail at [email protected].

Financial Reporting Council

London office: 13th Floor, 1 Harbour Exchange Square, London, E14 9GE

Birmingham office: 5th Floor, 3 Arena Central, Bridge Street, Birmingham, B1 2AX

+44 (0)20 7492 2300

www.frc.org.uk

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Name Form A FAQ
Publication date 27 September 2023
Type Guidance
Format PDF, 325.9 KB