The firm supports companies, institutions, and organisations with independent audit services, financial reporting assurance, tax advice, and strategic business consulting. OR·A emphasises quality, professional ethics, independence, and a personalised approach to helping clients address financial and business challenges.
With more than three decades of experience, Oliveira Rego & Associados serves clients across different sectors, providing technical expertise in auditing, compliance, taxation, and management support. The firm is based in central Lisbon and participates in international professional networks to assist clients with cross-border requirements.
Specialisms focus on audit, assurance, taxation, and strategic business advisory services. The firm supports companies and institutions with independent professional services designed to improve financial transparency, compliance, and business decision-making.
Key areas of expertise include:
- Statutory Audit & Legal Audit (Revisão Legal de Contas)
Statutory audits of financial statements, compliance with Portuguese audit requirements, and independent verification of company accounts. - Financial Audit & Assurance Services
Voluntary audits, interim reviews, financial reporting assurance, certification of financial information, and independent assessments of accounting information. - Internal Control Systems & Risk Management
Evaluation of internal control frameworks, improvement of organisational processes, and support in strengthening governance and control environments. - Forensic Audit & Fraud Investigation
Investigative audit services, fraud analysis, and reviews designed to identify financial irregularities or control weaknesses. - Tax Advisory & Tax Compliance
Corporate and individual tax advice, tax compliance support, tax reviews, and assistance in managing tax obligations. - International Taxation
Advice on cross-border tax matters, double taxation issues, international tax structures, and related compliance requirements. - Transfer Pricing Advisory
Review and support of transfer pricing policies, documentation, and compliance processes for companies operating internationally. - Tax Inspection Support & Tax Risk Management
Assistance during tax inspections, identification of tax risks, and development of appropriate responses and strategies. - Strategic Business Consulting
Advisory support for companies seeking to improve performance, address business challenges, and make informed strategic decisions. - Financial Reporting & Management Information
Support with financial information analysis, reporting processes, and improving the reliability of management data. - Quality Management Systems
Implementation and review of internal quality management systems and professional processes. - Corporate & Institutional Advisory
Professional support for companies, institutions, and organisations requiring audit, compliance, and financial expertise.
Oliveira Rego & Associados is particularly recognised for its combination of statutory audit expertise, tax advisory capability, and business consulting services, supported by its status as a Portuguese statutory audit firm registered with the relevant professional and regulatory bodies.
