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Our Services

Company Registration & Accounting System Setup
We offer full-service business formation to ensure your business starts on the right legal and financial footing. Our services include:
  • Registering companies/partnerships/commercial entities
  • VAT registration and taxpayer identification number 
  • Amending company details (e.g., directors, address, objectives)
  • Business closure and legal dissolution 
Monthly Accounting Services
We handle all aspects of monthly accounting in compliance with Thai tax laws and accounting standards, including:
  • Calculating and filing withholding tax (PND.1, PND.3, PND.53, PND.54, PP.36)
  • Submitting VAT returns (PP.30)
  • Monthly social security filing
  • Preparing monthly purchase–sales tax reports
  • Providing initial advice on suitable accounting systems 
  • All tasks are completed within legal deadlines with accuracy checks. 
Annual Financial Statement & Tax Filing
We prepare complete year-end financial statements and tax documents, enabling confident planning and compliance:
  • Profit and Loss Statement, Balance Sheet, Inventory Report
  • Mid-year (PND.51) and Year-end (PND.50) corporate income tax filings
  • Financial statement submission to Ministry of Commerce (SorBorChor.3 & BorJor.5)
  • Personal income tax return (PND.91)
  • Tax planning and advice for lawful benefits
  • Resolving tax audit or penalty issues with the Revenue Department 
Accounting & Tax Advisory
Our expert consultants provide professional, law-compliant advice to optimize your business operations:
  • Tax planning to maximize efficiency
  • Tax consulting for ongoing operations
  • Representation in tax negotiations or audits with authorities 
Audit Services by Licensed CPAs
Our certified public accountants (CPAs) perform statutory audits and deliver reliable reports in compliance with updated accounting standards. “Thai law requires businesses to prepare financial statements and have them audited and certified annually by a licensed CPA.” Audits not only fulfill legal obligations but also build trust among creditors, investors, partners, and management by ensuring transparent, accurate, and strategic financial reporting.
We are committed to professionalism, quality, and ethics—supporting every client to move forward with confidence, stability, and sustainable growth.

Contact Us

chanta.p@csaccounting.co.th

02-728-1882

084-004-1919

CS Accounting

CS Accounting