Thailand’s Corporate Taxation and Compliance Filing System

I. Overview

Companies operating in Thailand are legally required to fulfill annual tax filings and corporate compliance submissions. These obligations must be completed through the following two official systems:

II.  RD e-Filing (Revenue Department Electronic Filing System)

Official website: https://efiling.rd.go.th/

Scope of declarations includes:

III.  DBD e-Filing (Electronic Filing System of the Department of Business Development)

Official website: https://efiling.dbd.go.th/

Scope of declarations includes:

IV. TMA Group Professional Reminder

RD e-Filing is responsible for tax filing, while DBD e-Filing handles statutory corporate document submissions—both are indispensable.

There are mandatory monthly and annual filing obligations that must be fulfilled according to the regulations set by the Thai Revenue Department and the Department of Business Development (DBD).

Failure to submit on time or omission of submissions will result in substantial penalties and potential tax audit risks.

V. TMA Group’s Accounting Outsourcing Service Support

TMA Group not only assists clients in completing accounting and tax filing tasks but also provides a high-standard, one-stop accounting outsourcing service, including:

1. Basic Bookkeeping Support

• Collection and sorting of all financial documents and vouchers

• Preparation of compliant accounting entries based on Thai Financial Reporting Standards (TFRS)

• Establishment of a comprehensive ledger system with real-time monthly updates

2. Tax Filing and Audit Support

• Monthly filing of VAT, withholding tax, and corporate income tax

• Compilation of documentation required for annual audited financial statements and coordination with auditors

• Ensuring that financial data is standardized, clear, and traceable to meet the compliance requirements of the Revenue Department and DBD

3. Supply Chain and Invoice Management Support

• Coordination with clients’ suppliers and service providers to verify invoices and manage payment processes

• Ensuring supply chain invoices meet VAT credit eligibility standards, preventing tax issues due to invoice discrepancies

• Periodic coordination of invoices and payment status to reduce clients’ internal communication burdens

4. Real-Time Advisory and Tax Risk Alert Services

• Providing real-time financial and tax consultations to answer routine operational questions

• Early detection of potential tax risks, offering alerts and suggestions for compliance optimization

• Assisting in the development of rational financial and tax workflows to improve overall compliance and management standards

Conclusion

In Thailand, compliant bookkeeping and standardized filing are not only statutory obligations but also the foundation for maintaining a company’s reputation and ensuring sustainable development.

TMA Group leverages its expertise in bookkeeping, strict tax compliance, and real-time financial advisory services to help businesses build a transparent, compliant, and robust financial system, ensuring steady operations and a competitive advantage.

TMA Group is your one-stop expert in corporate compliance and financial-tax management—committed to professionalism and responsibility to support every client in achieving long-term success.

Regarding Overseas Direct Investment (ODI)

The following presents the complete procedures and key considerations for Chinese companies establishing a Thai company or representative office abroad (applicable to non-financial enterprises).

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