A.C.T Audit

UK Audit, Tax & Compliance Specialist

ACT Audit supports UK companies, groups and international businesses with audit, accounting, tax compliance, technical tax advisory, transaction support and outsourced finance services. From statutory audit and financial reporting to Corporation Tax, VAT, R&D tax relief, Pillar 2, transfer pricing and business process support, we provide technical, practical and compliance-led advice for businesses operating in the UK.

Your All in One Business Support and Audit Partner

Technical support for UK businesses, groups and cross-border organisations

We work with companies, groups, founders, finance teams, international businesses and professional advisers that need reliable UK audit, reporting, tax and compliance support. Whether you are preparing statutory accounts, managing UK Corporation Tax obligations, reviewing group reporting requirements, completing a transaction or strengthening your finance processes, ACT Audit helps you meet your obligations with clarity and control.
We support clients who need:

Our Services

UK audit, accounting, tax and compliance services

ACT Audit is structured around six core service areas, giving clients access to specialist support across recurring compliance, technical reporting and transaction-led requirements.

Audit & Assurance

Independent UK audit and assurance services for companies and groups, including statutory audit, group audit, component audit, internal controls review and risk assurance.

Accounting & Reporting

Financial reporting support under UK GAAP and IFRS, including statutory accounts preparation, consolidated reporting, management reporting and technical accounting advisory.

Tax Compliance

UK tax compliance services covering Corporation Tax, VAT, international tax reporting and standalone tax filing requirements.

Tax Technical Advisory

Specialist UK tax technical support across R&D tax relief, capital allowances, Patent Box, Pillar 2 / Global Minimum Tax and transfer pricing.

Transaction Support

Financial and regulatory support for transactions, including buy-side financial due diligence, vendor due diligence, post-transaction reporting and transaction-related regulatory filings.

Business Process

Outsourced finance and compliance support for UK businesses, including bookkeeping, payroll, company secretarial work and annual or ad hoc compliance filings.

why choose a.c.t audit

Practical technical advice, built around UK compliance

ACT Audit combines technical knowledge with practical delivery, helping clients manage audit, reporting, tax and compliance obligations with confidence.

We understand that businesses need more than isolated filings. They need clear advice, reliable processes and support that fits around deadlines, reporting cycles, transactions and regulatory requirements.

Support across UK statutory audit, Corporation Tax, VAT, R&D tax relief, Patent Box, Pillar 2, transfer pricing and financial reporting.

Structured support for statutory, tax, Companies House, HMRC and transaction-related filing requirements.

Assistance with group audit, component audit, consolidated reporting, international tax reporting and cross-border compliance.

Ongoing bookkeeping, payroll, company secretarial and management reporting support for businesses that need dependable back-office processes.

 

Blog & News

UK tax, audit and compliance insights

Avoiding Audit Bottlenecks: How multinationals with UK and Irish entities can stay ahead of group reporting deadlines

Avoiding Audit Bottlenecks: How multinationals with UK and Irish entities can stay ahead of group reporting deadlines

For many multinational groups headquartered across Europe, owning subsidiaries in the…

Guidance on the Going Concern Basis of Accounting, Solvency & Liquidity Risks

Guidance on the Going Concern Basis of Accounting, Solvency & Liquidity Risks

The Financial Reporting Council (FRC) has issued updated guidance on the…

ISSA 5000: International Standard for Sustainability Assurance Engagements

ISSA 5000: International Standard for Sustainability Assurance Engagements

Enhancing Trust in Sustainability Information ISSA 5000 aims to build trust…

FAQs

Frequently Asked Questions

ACT Audit provides UK audit, accounting, reporting, tax compliance, tax technical advisory, transaction support and outsourced finance services.

Yes. ACT Audit supports UK statutory audit, group audit, component audit, internal controls review and defined-risk assurance engagements.

Yes. ACT Audit supports UK Corporation Tax compliance, CT600 filing, VAT compliance, VAT returns, registrations and ongoing HMRC-related compliance requirements.

Yes. ACT Audit supports UK R&D tax relief claims, including claim preparation, technical narratives, eligible expenditure review and HMRC defence.

Yes. ACT Audit can support international groups with UK component audits, consolidated reporting, transfer pricing documentation, Pillar 2 compliance and international tax reporting.

Yes. ACT Audit provides outsourced bookkeeping, payroll, PAYE, pension auto-enrolment, company secretarial and compliance filing support.

ACT Audit is positioned as a UK technical audit, tax and compliance specialist, complementary to ACT London’s strategic advisory positioning.

Get Started

Need support with UK audit, tax or compliance?

Speak to ACT Audit about your audit, reporting, tax compliance, technical advisory, transaction support or outsourced finance requirements.