Fractional and interim CFOs in Thailand
We have run finance functions in Thailand for over twenty years, in Thai and in English, inside the same deadlines and the same Revenue Department correspondence your team deals with every month. That matters more here than in most markets, because the statutory calendar in Thailand is monthly rather than annual, and the audit requirement applies to every registered company without exception.
- Base
- Bangkok
- Statutory language
- Thai
- Reporting standard
- TFRS for NPAEs
or full TFRS - Audit
- Mandatory for all
registered companies - Filing cycle
- Monthly
- Corporate income tax
- 20% standard rate
- We work in
- Thai, English, French
What the rules require of your finance function
| Obligation | Deadline or threshold |
|---|---|
| Withholding tax returns, PND 3 and PND 53 | By the 7th of the following month. Electronic filing extends this by 8 days. |
| VAT return, PP 30 | By the 15th of the following month. Electronic filing extends this by 8 days. |
| Social security contributions | By the 15th of the following month. |
| Half-year corporate income tax, PND 51 | Within 2 months of the end of the first six months of the accounting period. |
| Annual corporate income tax, PND 50 | Within 150 days of the financial year end. |
| Statutory audit | Required every year for every registered company, including dormant ones. |
| Annual general meeting | Within 4 months of the financial year end. |
| Financial statements filed with the DBD | Within 1 month of the shareholders meeting that approves them. |
| Transfer pricing disclosure form | Filed with the PND 50 by companies with revenue of THB 200 million or more. |
Summarised for orientation and reviewed in August 2026. Deadlines, thresholds and rates change. Confirm the current position with your auditor or tax agent before acting on it.
What catches companies out in Thailand
Withholding tax treated as an afterthought
Thailand withholds at source on most service payments, and the certificate discipline is unforgiving. Companies that reconcile withholding only at year end typically find a six figure difference and no way to recover it.
VAT input credits lost to paperwork
Input VAT is denied on tax invoices that do not meet the form requirements. In a growing company with a junior accounts payable clerk this leaks steadily and is almost never picked up until an audit.
BOI promotion kept in the wrong books
Promoted and non-promoted activities have to be segregated in the accounts, with revenue, cost and shared overhead allocated on a defensible basis. Companies that discover this late face a painful reconstruction.
Thai statutory accounts and group reporting drifting apart
The statutory accounts are prepared for the Revenue Department, the group pack for head office, and after two years nobody can bridge them. That bridge is the first thing an acquirer asks for.
Director and signatory arrangements nobody has reviewed
Bank mandates, powers of attorney and the affidavit often reflect a shareholding and a management team that changed years ago, which becomes urgent at exactly the wrong moment.
What we do here
Run the monthly close in Thai and report in English
Your team keeps working in Thai with your existing accounting system. The output is a management pack your shareholders, lenders or head office can actually read.
Own the statutory calendar
Every Revenue Department, Social Security and DBD deadline tracked with an owner and a date, and the audit managed so it closes on time.
Build the bridge between statutory and management numbers
A documented reconciliation between the Thai statutory accounts and the group view, maintained monthly rather than reconstructed annually.
Handle banks and the BOI in the room
Thai speaking, with twenty years of local banking relationships, so the conversation happens directly rather than through a translated email chain.
Hire and coach your Thai finance manager
The end point of most engagements is a capable local controller with a working system behind them.
What it costs · Common questions
Thailand specifics we are asked about most: BOI financial compliance, getting profits out of Thailand, and financial due diligence when buying or selling.
Thailand specifics
How much does a fractional CFO cost in Thailand?
For a Thai SME, a CFO-only advisory retainer starts from around USD 6,000 per month and the standard two-person team, a CFO plus an on-site Financial Controller, from around USD 9,000. A full-time CFO hire in Bangkok generally costs THB 250,000 to THB 500,000 per month in salary alone, before bonus, benefits and employer contributions. See our pricing page for the current schedule.
Does my Thai company really need an audit if it has no activity?
Yes. Thailand requires every registered limited company to have its financial statements audited by a Thai certified public accountant every year, including companies that were dormant for the whole period. This surprises foreign owners more than any other single Thai requirement.
Can you work with our existing Thai accounting firm?
Almost always, and we prefer to. Your outsourced accountant keeps doing the bookkeeping and the filings. We sit above that, set the standard for what they deliver and when, and turn their output into something you can run the business on.
Do you speak Thai?
Yes. Jerome has been based in Bangkok for over twenty years and works in Thai, English and French. Meetings with your accountant, your auditor, your bank or the Revenue Department happen directly.
We are BOI promoted. Does that change the engagement?
It adds work in one specific place: the segregation of promoted and non-promoted activity in the accounts, and the supporting allocation of shared costs. It is straightforward if it is designed at the start and expensive if it is reconstructed three years later.