
Thailand's Specialist in NGO and International Audit. Built for Every Business.
Four decades of Thai expertise, strengthened by the global reach of MGI Network and a deep understanding of what international clients require to succeed.
Every business in Thailand. Deep expertise where it's hardest.
Nathee Audit Co., Ltd is a Bangkok-based audit, accounting, and tax firm. We deliver the same rigor and international standards as the large firms at transparent fixed fees that reflect the work, not the brand name. From Thai SMEs to multinational subsidiaries and international NGOs, every client gets partner-level attention who understands you.
Thai & Foreign-Owned SMEs
Full-service audit, accounting, tax, and payroll for growing businesses, Thai-owned or foreign-owned. Fixed fees, no hourly surprises, delivered in Thai or English to international standards.
International NGOs & NfPOs
Nathee Audit specialises in the audit of international NGOs in Thailand, auditing programmes funded by the European Commission, WHO, World Bank, NORAD, SIDA and the Global Fund, among others. We understand what your funders require.
Multinational Companies
Your Thailand subsidiary needs a firm that understands both Thai regulation and international reporting, with the MGI network connecting your HQ advisors directly to our Bangkok team.
Audit, accounting, tax and advisory services in Thailand from a single partner-led firm.
Eight service lines from our Bangkok office: statutory and specialist audit, Thai GAAP accounting, tax, payroll, company formation, advisory and transactions, ESG, and donor-compliant NGO audit.
Audit & Assurance
Statutory, internal, special-purpose and forensic audit, conducted to Thai and international standards by licensed Thai CPAs.
Learn more →Accounting & Bookkeeping
Thai GAAP-compliant bookkeeping, account review, management reporting, financial statement preparation and account closing.
Learn more →Tax Advisory & Filing
Corporate income tax, VAT and SBT filing, tax planning, Revenue Department representation and transfer pricing.
Learn more →Payroll Management
End-to-end payroll: salary processing, employee tax filing, social security and provident fund compliance.
Learn more →Company Formation
Full setup for foreign businesses: registration, BOI applications, work permits and ongoing compliance.
Learn more →Advisory & Transactions
IPO readiness and listing audit support, M&A and financial due diligence, forensic investigation, and business consultancy.
Learn more →ESG & Sustainability
ESG assessment and reporting, net-zero strategies, and ESG due diligence in support of ESG-linked financing.
Learn more →NGO Audit: Our Speciality
A dedicated NGO and not-for-profit audit practice, experienced with EU, World Bank, NORAD, SIDA and Global Fund requirements.
Learn more →A dedicated audit practice for international NGOs.
Since 2010, Nathee Audit has specialised in the audit of international organisations operating in Thailand, Laos and Myanmar, bridging the gap between international donor requirements and local operational reality.
Enabling your organisation to meet its audit obligations, satisfy its funders, and remain focused on its mission.
Discover our NGO Audit Expertise →Funded by the European Commission, World Bank, WHO, NORAD, SIDA, the Global Fund and more.

A member of MGI Worldwide: our global network, supporting your growth.
Nathee Audit Co., Ltd is a proud member of MGI Worldwide, more than a global network, a trusted community of audit, accounting, tax, legal, and consulting firms, connecting people and expertise everywhere.
With over 8,500 professionals across some 440 locations in 100 countries, MGI gives us strong reach across all major regions, so we remain your lead adviser wherever your business grows.
Our International Services →Big enough to matter, small enough to care.

Locally engaged. Internationally confident.
Part of the local community for over 40 years, backed by the global support and resources of MGI Worldwide.
Partner commitment. Personal support.
Whatever the size of your operation in Thailand, you will always be a priority to our partners and our team.
Better service. Fair price.
We are very competitive, offering a more committed and personal service for all your audit, tax, accounting and business consulting needs.
We are a group of professional people, giving the best of our knowledge for the benefit of our clients, and flexible to support both local and international requirements.
Partner with a firm that understands both Thailand and the world.
We respond to all enquiries within two business days.