A.C.T. Audit

UK & Ireland Audit, Tax & Compliance Specialist

A.C.T. Audit is a boutique, partner-led firm which supports companies in UK and Ireland, 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 and Ireland.

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

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

Our Services

Audit, accounting, tax and compliance services in UK and Ireland

A.C.T. 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 and Ireland 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 and Ireland tax compliance services covering Corporation Tax, VAT, international tax reporting and standalone tax filing requirements.

Tax Technical Advisory

Specialist UK and Ireland 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 businesses in UK and Ireland, 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 and Ireland compliance

A.C.T. 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 and Ireland 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 and Ireland tax, audit and compliance insights

Avoiding Audit Bottlenecks: How multinationals with UK & Irish entities stay ahead

Avoiding Audit Bottlenecks: How multinationals with UK &…

For many multinational groups headquartered across Europe, owning subsidiaries…

IFRS Updates on Going Concern: Educational Materials for Financial Reporting

IFRS Updates on Going Concern: Educational Materials for…

The International Financial Reporting Standard (IFRS) has released updated…

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…

FAQs

Frequently Asked Questions

A.C.T. Audit provides UK and Ireland audit, accounting, reporting, tax compliance, tax technical advisory, transaction support and outsourced finance services.

Yes. A.C.T. Audit supports UK and Ireland statutory audit, group audit, component audit, internal controls review and defined-risk assurance engagements.

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

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

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

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

A.C.T. Audit is positioned as a UK and Ireland technical audit, tax and compliance specialist, complementary to ACT London’s strategic advisory positioning.

Get Started

Need support with audit, tax, or compliance in the UK and Ireland?

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