Thailand Tax & Filing Deadlines

The annual corporate income tax return for Thai companies and juristic partnerships, filed and paid within 150 days of the year-end.

The half-year corporate income tax return, filed and paid within two months after the first six months of the accounting period. It is an advance on the year's tax. The amount paid is credited against the P.N.D.50 for the same year, so a good estimate avoids a large balance later.

The monthly VAT return every VAT registrant files for each calendar month, even with no sales. Output VAT on sales is set against input VAT on purchases. When input is higher, the difference is carried forward or refunded under the Revenue Department's rules.

The monthly return for personal income tax withheld from employees' pay. The employer works out the tax on each employee's pay, deducts it, and pays it over with the return. At year end the employer also gives each employee a 50 Tawi certificate for the tax withheld.

The monthly returns for tax withheld from payments to individuals (P.N.D.3) and to companies and partnerships (P.N.D.53), such as service fees and rent. The company deducts the tax when it pays the supplier or landlord, then pays it to the Revenue Department with the return. The payee uses the 50 Tawi certificate to credit the tax in their own return.

The monthly Social Security filing and payment for employees insured under Section 33. The employer deducts the employee's share from pay, adds its own equal share, and pays both to the Social Security Office with the form. Paying on time keeps employees insured under Section 33 covered by the Social Security Fund.

Audited financial statements approved by the shareholders and filed with the Department of Business Development, with the shareholder list. Every company limited and public company limited needs a licensed auditor, so the audit has to be finished before the annual general meeting can approve the statements.

Personal income tax returns for sole proprietors and non-registered partnerships: the annual return and the half-year return. The sole proprietor pays tax on the business profit at the personal rates, together with any other income such as salary or rent. P.N.D.94 brings in tax on half of the year early.