How to Register for VAT in Thailand (2026): A Step-by-Step Guide

TL;DR: Any business earning more than THB 1.8 million in annual revenue must register for VAT in Thailand with the Revenue Department within 30 days of crossing the threshold. The current VAT rate is 7% — a reduced rate on the 10% statutory base, extended through 30 September 2026 by Royal Decree No. 799.

Last updated: August 2026

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Who Must Register for VAT in Thailand?

Any person or entity — Thai or foreign — selling goods or providing services in Thailand with annual revenue exceeding THB 1.8 million must register for VAT. This threshold applies to a rolling 12-month period. Businesses below the threshold are exempt but may register voluntarily.

The obligation to register applies broadly:

• Thai-registered companies selling taxable goods or services
• Foreign businesses with a permanent establishment in Thailand conducting taxable sales
• E-commerce and digital service providers selling to Thai consumers — foreign digital platforms must register under the Electronic Service rules (effective 1 September 2021)
• New businesses that reasonably expect to exceed THB 1.8 million within their first year may register in advance

Who is exempt? Certain activities fall outside the VAT net entirely, including:

• Unprocessed agricultural products
• Goods and services specifically exempted under Section 81 of the Revenue Code (e.g., educational services, healthcare, domestic passenger transport)
• Businesses earning below THB 1.8 million annually

If your business is growing toward the threshold, track your cumulative revenue carefully. KARR's dashboard monitors your running revenue total against the THB 1.8 million VAT registration threshold in real time, alerting you before you breach it — giving you time to register without penalty.

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What Is the Current VAT Rate in Thailand?

Thailand's current VAT rate is 7%, which is a reduced rate applied to a 10% statutory base under Section 80 of the Revenue Code. This 7% rate has been extended through 30 September 2026 by Royal Decree No. 799. Without a further extension, the statutory 10% rate would apply from 1 October 2026.

For practical purposes, the 7% rate applies to:

• The sale of taxable goods in Thailand
• The provision of taxable services in Thailand
• Imports of goods

The export of goods and certain services is zero-rated (0%), meaning the supplier charges no VAT but retains the right to claim input VAT credits.

Key rate summary for filing purposes:

Transaction Type	VAT Rate (2026)
Standard domestic sale of goods/services	7%
Exports of goods	0%
Services performed in Thailand but used abroad	0%
Exempt supplies (healthcare, education, etc.)	N/A — outside VAT scope
Statutory rate (if no further extension after 30 Sep 2026)	10%

Monitor the Royal Decree extensions closely. If no new decree is issued before 1 October 2026, all your invoices from that date must show 10% VAT. KARR applies the correct VAT rate automatically based on transaction date and transaction type, so a rate change does not require you to manually update every invoice template.

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Step-by-Step: How to Register for VAT in Thailand

Registering for VAT in Thailand is a straightforward administrative process handled through the Revenue Department. The core requirement is completing Form VAT 01 and submitting it within 30 days of the date your revenue exceeded THB 1.8 million.

Step 1: Confirm Your Obligation

Calculate your cumulative revenue for the past 12 months. If it has crossed THB 1.8 million — or you reasonably expect it to — you must register.

Step 2: Gather Required Documents

Prepare the following before attending a Revenue Department office:

• For companies: Certificate of Incorporation (DBD), company affidavit, list of directors, and the company's tax identification number (เลขประจำตัวผู้เสียภาษี)
• For individuals/sole traders: Thai national ID card or passport
• Business location proof: Lease agreement or title deed for principal place of business
• Map of business premises: A simple sketch or printed map of the business location
• Authorisation letter if a representative is submitting on your behalf, along with the representative's ID

Step 3: Complete Form VAT 01 (แบบ ภ.พ.01)

Form VAT 01 is the official VAT registration application. It requests:

• Business name and address
• Type of business activity
• Estimated annual revenue
• Date business commenced
• Details of business premises

Form VAT 01 is available at any Revenue Department District Office or from the Revenue Department's official website (rd.go.th).

Step 4: Submit at Your Local Revenue Department Office

Submit Form VAT 01 in person at the Revenue Department Area Office (สำนักงานสรรพากรพื้นที่) covering your principal place of business. Online VAT registration for new registrants is not universally available for all entity types as of 2026 — confirm with the Revenue Department whether your entity type qualifies for e-registration.

Processing is typically completed on the same day or within a few working days.

Step 5: Receive Your VAT Registration Certificate

Upon approval, you receive a VAT Registration Certificate (แบบ ภ.พ.20) containing your VAT number (เลขทะเบียนภาษีมูลค่าเพิ่ม). Post this certificate visibly at your place of business — the Revenue Code requires it.

Step 6: Begin Issuing Tax Invoices

From the date your registration takes effect, you must:

• Issue tax invoices (ใบกำกับภาษี) for every taxable sale, showing your VAT number, the VAT amount separately stated, and all required fields under Section 86/4 of the Revenue Code
• Collect VAT from customers at 7%
• Keep all input tax invoices from suppliers to claim input VAT credits

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Understanding Monthly VAT Filing: The PP30 Return

Once registered, you must file a PP30 return every month with the Revenue Department — regardless of whether you made any sales that month. The PP30 is the standard monthly VAT return for VAT-registered businesses in Thailand.

Filing deadline: The PP30 is due by the 15th of the following month for paper filing. For e-filing through the Revenue Department's online system, the deadline is extended by 8 days — to the 23rd of the following month.

The PP30 reconciles:

• Output VAT — VAT collected from customers on taxable sales
• Input VAT — VAT paid on business purchases and expenses
• Net VAT payable or refundable — the difference between the two

If input VAT exceeds output VAT, you have a VAT credit. You may carry it forward to the next month or apply for a cash refund from the Revenue Department (the refund process involves a review and can take time).

Penalties for late filing or non-registration:

• Filing the PP30 late carries a surcharge of 1.5% per month of the VAT due, plus a fine
• Failing to register when required exposes the business to back-taxes, surcharges, and penalties under the Revenue Code

KARR prepares the PP30 directly from your posted transactions — output VAT, input VAT, and the net position are all calculated automatically from the same ledger you use for invoicing and expenses. You review, confirm, and file. No manual spreadsheet reconciliation.

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Southeast Asia VAT Comparison: Thailand in Context

Understanding where Thailand sits relative to its regional peers helps you plan for cross-border business and assess your compliance burden.

Country	Indirect Tax	Standard Rate	Registration Threshold	Filing Frequency
Thailand	VAT	7% (reduced; 10% statutory)	THB 1.8 million	Monthly (PP30)
Singapore	GST	9% (since 1 Jan 2024)	S$1 million taxable turnover	Quarterly
Malaysia	SST (Sales Tax)	5% or 10% on goods	RM 500,000	Bi-monthly
Malaysia	SST (Service Tax)	8% (6% for F&B, telecom, parking, logistics)	RM 500,000	Bi-monthly
Philippines	VAT	12%	₱3 million gross sales	Quarterly (Form 2550Q)
Indonesia	VAT (PPN)	12% statutory (11% effective on non-luxury goods)	IDR 4.8 billion	Monthly

Sources: Thailand Revenue Department; IRAS (Singapore); Royal Malaysian Customs Department; BIR (Philippines); Directorate General of Taxes (Indonesia). All figures verified against current law as at July 2026.

Thailand's 7% rate is the lowest in this peer group, which is a meaningful cost advantage for businesses operating across multiple Southeast Asian markets. However, the monthly PP30 filing frequency is more demanding than Singapore's quarterly GST cycle or the Philippines' quarterly VAT return.

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How KARR Supports Thailand VAT Compliance

KARR is cloud accounting software built for business owners — not just accountants. For Thailand VAT, it delivers specific, practical compliance automation:

• Threshold monitoring: KARR tracks your cumulative taxable revenue against the THB 1.8 million registration threshold and alerts you before you breach it
• Correct VAT treatment on every transaction: When you post a sale or purchase using KARR's guided "What Happened?" wizard, KARR applies the correct VAT rate (7% standard, 0% export, or exempt) based on the transaction type — no manual rate lookup
• PP30 preparation: Your monthly PP30 is generated automatically from the same ledger entries used for invoicing. Output VAT, input VAT, and net payable are calculated without a separate reconciliation exercise
• Tax invoice generation: KARR produces Revenue Department-compliant tax invoices with all required fields under Section 86/4 of the Revenue Code, including your VAT registration number
• Rate change readiness: If Thailand's VAT rate changes from 7% to 10% on 1 October 2026 (or any other date), KARR's rate update applies across all new transactions from the effective date — your historical records stay correct
• AI receipt scanning: KARR's OCR captures input VAT from supplier invoices automatically, reducing manual data entry errors that cause PP30 discrepancies

For accountants managing multiple Thai clients, KARR's practice dashboard lets you monitor filing deadlines and VAT positions across all clients from a single screen.

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Frequently Asked Questions

See FAQ section below.