Accounting services in Thailand
Emerhub keeps your Thai company compliant with the Revenue Department: monthly withholding and VAT filings, bookkeeping, audited financial statements, and the annual return, all handled by a local team in Bangkok. Clean books and on-time filings, without building a finance department.
Thai accounting is a monthly commitment
Thailand isn't a once-a-year filing. Withholding and VAT returns are due every month, and most foreign companies find the ongoing workload, not the tax itself, is the hard part to keep up with.
A filing every month, not just at year-end
Running Thai accounting yourself means monthly withholding returns (PND 1, 3, and 53), the monthly VAT return, and social security, plus the half-year and annual corporate returns, each with the Revenue Department on a strict calendar.
Every payment to a supplier or employee may carry withholding, and each one needs the right form and a certificate issued. A missed filing means a 1.5% monthly surcharge and penalties.
A local team that keeps you compliant
A Bangkok accounting team handles every monthly, half-year, and annual filing with the Revenue Department, keeps your books to Thai accounting standards (TFRS), and classifies and issues withholding correctly.
You get clean, audit-ready books and on-time filings every month, without hiring in Bangkok, and someone to handle the audit if it comes.
Everything your Thai finance function needs, on your behalf
From monthly bookkeeping to the annual return and the audit, handled by a local team that knows the Revenue Department calendar inside out.
Monthly tax filings
The monthly withholding returns (PND 1, 3, and 53) and the VAT return (PP 30), filed with the Revenue Department by the deadlines.
Bookkeeping & records
We maintain your books to Thai Financial Reporting Standards (TFRS), kept current and reconciled throughout the year.
Financial statements & audit
Monthly management reports, plus the statutory audited financial statements, coordinated with a licensed Thai auditor and filed with the DBD.
VAT & withholding
VAT registration where needed, monthly VAT returns, and correct classification and certificates for every withholding payment.
Corporate tax returns
The half-year return (PND 51) and the annual corporate income tax return (PND 50), with the full tax computation.
Advisory & audit support
Guidance on structure and deductions, responses to the Revenue Department, and support through a tax audit if one arises.
Three steps to compliant books
Onboarding takes a couple of weeks. After that, your filings run on a fixed monthly, half-year, and annual rhythm.
Onboarding & handover
- We review your standing with the Revenue Department and set up e-filing access.
- We take over your existing books and reconcile the opening balances.
The monthly cycle
- We record and reconcile transactions, run payroll, and issue withholding certificates.
- We file the monthly withholding and VAT returns with the Revenue Department by the deadlines.
- You receive a management report showing the month's position.
Half-year & annual close
- We prepare the half-year return (PND 51) and the annual corporate return (PND 50).
- We coordinate the statutory audit and file the audited accounts with the DBD.
Companies operating in Thailand
Most clients fall into one of these patterns. If yours matches, the service is built for your situation.
Foreign-owned companies
Full compliance for a Thai limited company, from the monthly Revenue Department filings through to the annual audited accounts.
Small businesses & startups
Outsourced finance for smaller companies that don't need, or can't yet justify, a full in-house accounting team.
BOI-promoted businesses
BOI-promoted companies with reporting conditions attached to their privileges, kept aligned with the incentive requirements.
Changing accountants
Companies moving from a previous provider who want a clean handover and a reliable monthly rhythm.
Branch & representative offices
Branches and representative offices, which carry their own Revenue Department filing obligations even without local sales.
Cleanup & catch-up
Companies with a backlog or facing a Revenue Department audit who need their records reconstructed and a return to good standing.
Your annual compliance calendar
Thai companies file with the Revenue Department every month, plus a half-year return, the annual return, and audited accounts. Here's the full year at a glance.
| Obligation | Files with | Frequency | Deadline |
|---|---|---|---|
| Withholding returns (PND 1, 3, 53)Tax withheld on salaries and payments. | Revenue Dept | Monthly | 7th of the next month |
| VAT return (PP 30)Output and input VAT reconciled. | Revenue Dept | Monthly | 15th of the next month |
| Half-year tax return (PND 51)A mid-year corporate tax estimate. | Revenue Dept | Mid-year | 2 months after the half-year |
| Annual tax return (PND 50)The annual corporate return. | Revenue Dept | Annual | 150 days after year-end |
| Audited accountsFiled after the AGM. | DBD | Annual | Within 5 months of year-end |
Accounting & tax FAQs
What companies ask most often before handing over their books in Thailand.
What does your accounting service include?
Monthly withholding and VAT filings, bookkeeping, financial statements and audit coordination, the half-year and annual corporate returns, and tax advisory. We can run your entire Thai finance function, or just the parts you need. The scope and monthly fee are set during onboarding, once we've seen your transaction volume and structure.
How often do I file taxes in Thailand?
Monthly. Withholding returns (PND 1, 3, and 53) are due by the 7th of the following month, and the VAT return (PP 30) by the 15th, with e-filing extensions of about a week on each. On top of that, corporations file a half-year return (PND 51) and an annual return (PND 50) within 150 days of the fiscal year-end. We handle the full cycle.
What is the VAT rate in Thailand?
VAT is currently 7%, reduced from the statutory rate of 10%. The reduction has been extended repeatedly and is in place through 30 September 2026, subject to further extension. Registration is required once turnover passes 1.8 million baht a year, and returns are filed monthly. We handle registration and the monthly PP 30 filings.
How does withholding tax work in Thailand?
When your company pays for services, salaries, rent, and many other items, it must withhold a percentage, remit it to the Revenue Department, and issue a withholding certificate to the payee. The rate and form depend on the payment type and whether the recipient is an individual or a company. Getting the classification right each month is the most common compliance pitfall, and it's a core part of what we manage.
Does my company need an audit?
Yes. Every Thai limited company must have its annual financial statements audited by a licensed Thai auditor and filed with the Revenue Department and the Department of Business Development (DBD), regardless of size or activity. We keep your books to audit-ready standard through the year and coordinate the audit so the filing is straightforward.
What are the corporate tax rates in Thailand?
The standard corporate income tax rate is 20%. Qualifying SMEs, with paid-up capital up to 5 million baht and annual revenue up to 30 million baht, pay progressive rates: 0% on the first 300,000 baht of net profit, 15% on the next band up to 3 million, and 20% above that. We confirm what applies to your company and build it into your filings.
Talk to our Bangkok team
Tell us about your company, where it is in its filing cycle, and what you need handled. We'll confirm the scope, the timeline, and a monthly fee.
591 Sukhumvit 33, Watthana
Bangkok 10110