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ICAEW Registered Auditors  ·  90+ UK-Based Experts

UK Subsidiaries of International Groups

Statutory UK audits for subsidiaries of overseas parents — delivered to group deadlines, with reporting your head office can actually use.

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Running the UK arm of an international group means answering to two masters: UK company law and the group finance team at head office. Our London-based audit practice is built for exactly that position. We deliver statutory audits that satisfy the UK Companies Act while producing the audit deliverables, reporting packs and clear communication that parent companies and group auditors need for consolidation.

A significant portion of the subsidiaries we audit have annual revenues under £2m — entities that are small in the UK but matter to their groups, and that need an auditor who is proportionate, responsive and used to working across borders and time zones.

International Group Audit Experience

We have experience auditing UK companies with international parents based in diverse regions across the globe. Our understanding of different accounting standards, regulatory requirements and business practices enables us to deliver high-quality audits that meet both UK statutory requirements and international group reporting needs.

Our audit approach is tailored to the specific needs of UK subsidiaries: full compliance with UK Companies Act requirements under UK GAAP or IFRS, combined with the information and assurance the parent needs for group reporting. Where a group auditor is involved, we work to their group instructions under ISA 600, delivering reporting packs, consolidation schedules and clearances to the group timetable rather than ours.

Geographic Coverage

We audit UK subsidiaries of parents across Europe (including Denmark, Estonia, France, Germany, Greece, Iceland, the Netherlands, Spain and Sweden), North America (the United States and Canada), Asia (China, India, Japan, Malaysia and Singapore), South America (Brazil and Colombia), the Middle East (Oman and the UAE), Africa (Mauritius, South Africa, Rwanda and Uganda) and Australasia (Australia). Working across time zones, languages and group cultures is our normal operating mode, not an exception.

Does Your UK Subsidiary Need an Audit?

The thresholds rose substantially for financial years beginning on or after 6 April 2025: a company can qualify as small — and potentially audit-exempt — if it meets two of three limits: turnover of £15m or less, balance sheet total of £7.5m or less, and 50 or fewer employees. But for group companies the analysis doesn't stop there. A subsidiary can lose the exemption because of the size of its worldwide group or because the group is ineligible, and many parents require an audit regardless for consolidation or governance reasons. There is also a separate route: certain subsidiaries can claim exemption where the parent gives a statutory guarantee of their liabilities under the Companies Act.

We assess the position each year and give the group a clear answer — audit required, audit exempt, or exempt but worth doing anyway — together with what each route means for filings and group reporting.

What We Deliver

Beyond the statutory audit opinion, we prepare or review statutory accounts, deliver group reporting packs in the parent's format, handle Companies House filing requirements, and flag UK regulatory changes that affect overseas groups — including the Companies House identity verification regime, under which existing directors must verify their identity by 18 November 2026. Our streamlined approach minimises disruption to small local finance teams, and clear, senior-level communication with head office comes as standard.

What You Get With Acumon

  • Statutory audits under UK GAAP or IFRS, aligned to group reporting timetables
  • Group reporting packs and consolidation schedules in your head-office format
  • ISA 600 component audit work under group auditor instructions
  • Annual audit-exemption assessments, including parent guarantee routes
  • Companies House compliance support, including director identity verification
  • Proportionate, low-disruption fieldwork for smaller UK entities

Why Acumon for UK Subsidiaries of International Groups?

  • A significant portion of the subsidiaries audited have annual revenues under £2m
  • ICAEW-registered audit firm
  • Experience with parent companies across Europe, North America, Asia, South America, the Middle East, Africa, and Australasia

Get a Fixed-Fee Quote

Tell us what you need and we'll come back within one business day with a clear scope and a fixed price — no hourly-rate surprises. Call 020 8567 3451 or use the form and we'll be in touch.

Common Questions

Frequently Asked Questions

Does our UK subsidiary need a statutory audit?
It depends on size and group circumstances. For financial years beginning on or after 6 April 2025, a company meeting two of three limits — turnover £15m or less, balance sheet £7.5m or less, 50 or fewer employees — can qualify as small and audit-exempt. But membership of a larger or ineligible worldwide group can remove the exemption, and many parents require an audit anyway. We assess your position and give a definitive answer.
Can we use the parent guarantee audit exemption?
Possibly. The Companies Act allows certain subsidiaries to take audit exemption where the parent guarantees the subsidiary's outstanding liabilities and the required statements and documents are filed at Companies House. It saves audit cost but has real consequences — the guarantee is enforceable — so we help groups weigh the saving against the exposure before electing.
Do you work with our group auditors overseas?
Yes, routinely. We act as component auditor under ISA 600, following the group auditor's instructions, materiality and reporting formats, and delivering clearances to the group timetable. Where there is no group audit, we simply supply the reporting pack and schedules your head office needs for consolidation.
Can the UK accounts be prepared under IFRS?
UK statutory accounts can be prepared under UK GAAP (usually FRS 101 or FRS 102) or UK-adopted IFRS. For subsidiaries of IFRS-reporting groups we advise on the most efficient framework — often FRS 101, which keeps IFRS numbers with reduced disclosures — and we audit under whichever framework the group selects.
Our UK entity is very small — is an audit still worthwhile?
Often, yes. A significant portion of the subsidiaries we audit have revenues under £2m: parents frequently want independent assurance over a distant operation, and lenders, regulators or group policy may require it. Because we are structured for smaller entities, the process is proportionate — focused fieldwork, senior attention and minimal disruption to your local team.
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Ready to Sort Your UK Subsidiaries of International Groups?

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