Accounting & Tax Services in Thailand

Full-cycle accounting support for companies operating in Thailand — bookkeeping, monthly financial statements, management reports, and liaison with the Revenue Department and the Department of Business Development (DBD), tailored to Thai Financial Reporting Standards (TFRS). See our Accounting Services page for the full scope.

Yes. A Thai-registered company must keep its statutory books in Thai, in Thai Baht, following Thai accounting standards, and file with Thai authorities — a foreign accountant can advise, but a locally licensed accountant or firm must prepare and certify the Thai-language statutory records.

Most companies close monthly for management purposes, with an annual statutory close for the fiscal-year financial statements that go to audit and filing.

Under the Thai Accounting Act, every registered company must maintain a general ledger, journals, and supporting documents (invoices, receipts, contracts) for at least 5 years, in Thai language and Thai Baht.

Yes — outsourcing day-to-day bookkeeping to a licensed accounting firm is common and compliant, provided the company still appoints a qualified Thai accountant of record for its statutory filings.

Late or incomplete books put the annual audit and tax filing deadlines at risk, and can trigger penalties from the Revenue Department and DBD for late or inaccurate filings.

The standard rate is 20% of net profit, with reduced progressive rates available for SMEs meeting paid-up capital and revenue thresholds. See our Corporate Income Tax page for the current brackets.

Half-year (PND.51) returns are due within 2 months of the mid-year point, and the annual return (PND.50) within 150 days of the fiscal year-end.

Every Thai-registered company must have its annual financial statements audited by a CPA licensed in Thailand and filed with the DBD, regardless of size or activity level, including dormant companies. See our Statutory Auditing service.

CIT taxes a company's net profit at the corporate level; PIT taxes an individual's income (salary, dividends, etc.) at progressive rates up to 35%. See our Personal Income Tax and Corporate Income Tax pages for the detail on each.

Yes — anyone, Thai or foreign, earning assessable income from work performed in Thailand is generally liable for Thai PIT, usually filed annually by end of March (or mid-April for e-filing).

Dividends are paid from already-CIT-taxed profits and are then subject to withholding tax (and PIT) when received by the shareholder, so there are two separate tax events, though credits may apply in some cases.

VAT registration is mandatory once your annual turnover exceeds THB 1.8 million; businesses below that threshold may still register voluntarily. See our Value Added Tax page for details.

Monthly — the PP.30 return and payment are due by the 15th of the following month (or the 23rd for e-filing).

Many service payments (rent, professional fees, certain contracts) require withholding tax to be deducted at source and remitted to the Revenue Department, separate from VAT. See our Withholding Tax page.

Monthly salary calculation, PIT withholding, Social Security Fund (SSF) contributions, provident fund administration where applicable, and payslip issuance. Our Payroll Outsourcing service covers the full cycle.

Yes — both employer and employee contribute (currently up to 5% of salary each, within a capped salary base) to the Social Security Fund every month.

Withholding tax on salaries (PND.1) and Social Security contributions are both due by the 15th of the following month.

Sales invoices, purchase invoices/receipts, bank statements, and any new contracts or asset purchases — the more complete and timely, the faster your monthly close and filings.

Annual audited financial statements and the DBD filing are due within 5 months of fiscal year-end; the CIT return (PND.50) within 150 days of fiscal year-end; and the annual shareholders' meeting within 4 months of year-end.

Late filings typically carry fixed penalties plus surcharges on any tax due, and repeated late filing can draw closer scrutiny from the Revenue Department — we track every deadline for clients under our services.

Bookkeeping is the day-to-day recording of transactions; accounting turns those records into financial statements and management reports; tax compliance is calculating, filing, and paying the taxes those activities generate (CIT, VAT, withholding, PIT). We provide all three, either together or as standalone services.

One firm can legally and practically handle all three — it reduces handoff errors and keeps your numbers consistent from the ledger through to the tax return, which is how we structure our own service packages.

Yes — we work daily with foreign-owned and foreign-managed companies in Thailand, providing English-language reporting and advice alongside the Thai-language statutory filings the law requires.

Yes, alongside corporate services we assist individual expatriates with their Thai PIT filings, especially where foreign-sourced income or treaty relief may apply.

Ideally from day one — company registration, initial VAT/tax registration, and your first bookkeeping setup go smoother when planned together. See our Company Registration Thailand page, or get in touch directly.