ฉบับภาษาไทย: อ่านหน้านี้เป็นภาษาไทย
Must a newly registered Thai company register for VAT immediately?
Short answer
No. VAT registration with the Revenue Department becomes compulsory once annual revenue from VATable supplies exceeds THB 1.8 million; below that it is voluntary. Registration must be filed before the business starts operating or within 30 days of crossing the threshold.
Registering early is sometimes still the right call. A company that expects to buy heavily before selling — fit-out, equipment, imported stock — can only reclaim input VAT once registered, and businesses that invoice corporate customers often find those customers expect a tax invoice. Certain activities require registration regardless of turnover, and some licence applications and work-permit files are smoother with a VAT certificate (Phor.Phor.20) in the pack.
The cost of registering is the monthly compliance that follows: Phor.Phor.30 filed by the 15th of the following month, whether or not there were sales, plus proper input/output tax records and correctly formatted tax invoices. Late filings attract surcharge and penalty even on nil returns, so register when the business is genuinely ready to keep the cycle, not simply because the certificate looks credible. Scope, turnaround and fees are confirmed by IVC staff by phone, LINE or email — this site does not publish prices.
Reviewed as of 2026-08-04. General guidance only, not case-specific advice and not a guarantee of outcome. Government fees, conditions and processing times are set by the responsible authority and can change. This site does not publish prices — please ask our staff.
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