Accounting & Audit for BOI and Foreign-Owned Companies in Thailand

Bangkok Accounting Firm is a Thai CPA firm that works in English with foreign-owned companies, BOI-promoted companies, branches and representative offices. Our office is in Din Daeng, Bangkok, and we serve companies anywhere in Thailand.

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Who we work with

Thai limited companies with foreign shareholders
BOI-promoted companies
Branches of foreign companies
Representative and regional offices
Startups and SMEs whose head office needs reports in English

What changes once you are BOI-promoted

Income and expenses of promoted and non-promoted activities must be recorded separately, so exempt and taxable income are clear.
The corporate income tax exemption is claimed in the annual return (PND 50), based on your audited financial statements.
Exemption periods, caps and conditions in your promotion certificate need to be tracked every year.
Machinery and raw materials imported with BOI privileges need proper records.
BOI reports required by your promotion conditions must be filed on time.

What we do for you

Monthly accounting

Bookkeeping in English, VAT (PP30), withholding tax (PND 1, 3, 53), social security and payroll for Thai and foreign staff.

Year-end and audit

Year-end closing and statutory audit signed by a licensed Thai CPA, DBD filing and corporate income tax returns (PND 50 and PND 51).

Head-office reporting

Monthly management accounts and reporting packs in English, and direct contact with your group finance team.

How we start

Tell us about your company on LINE or by phone: business type, BOI status, number of transactions and year-end.
We send a fixed quote.
You hand over documents and system access. We take over from your previous accountant if you have one.
Every month you receive your filings and reports in English.

Frequently asked questions

Does a foreign-owned company in Thailand need an annual audit?

Yes. Every Thai limited company must have its annual financial statements audited by a licensed auditor (CPA), whatever its size or ownership.

When are the audited financial statements due?

The annual general meeting must be held within four months of the fiscal year-end, and the financial statements are filed with the DBD within one month after the meeting. The corporate income tax return (PND 50) is due within 150 days of the year-end.

Can you work with our head-office accountants in English?

Yes. We report and correspond in English and Thai.

Do you serve companies outside Bangkok?

Yes. We work with companies across Thailand. Documents can be sent electronically.

Add us on LINE Call +66 61 547 9478