What is the VAT registration threshold in Thailand?

The mandatory VAT registration threshold in Thailand is ฿1.8 million per year from a single business activity. If your annual income from one business exceeds this, you must register for VAT within 30 days of crossing the threshold. Below ฿1.8M, registration is optional (voluntary).

What is Thailand's VAT rate?

The standard VAT rate in Thailand is 7% (technically 10% with a temporary reduction in place since 1997 that has been repeatedly extended). Export of goods and services to foreign countries is typically zero-rated (0% VAT). Some activities are VAT-exempt entirely, including financial services, medical services, and educational services.

Do I charge Thai VAT on services to foreign clients?

For services that are utilised entirely outside Thailand (B2B export services), the supply is zero-rated — meaning 0% VAT applies. You don't charge your foreign clients Thai VAT. If you're VAT-registered, you can still reclaim input VAT on your Thai purchases. Services where any benefit is received in Thailand by a Thai entity may be subject to 7% VAT even if the client is foreign.

How do I register for VAT in Thailand?

Register at the Revenue Department area office serving your business address. In Phuket, this is the Phuket Area Revenue Office on Phuket Road, Phuket Town. Complete Form PP-01 (VAT registration application), provide your company registration documents or personal TIN, your business address evidence, and details of your business activities. Registration is usually processed within 1–5 business days.

Should I voluntarily register for VAT in Thailand even below the threshold?

It depends. Voluntary VAT registration makes sense if: (1) you have significant Thai business purchases (office rent, equipment, services) with input VAT you want to reclaim; (2) your clients expect a VAT certificate from a registered business; or (3) you're approaching the ฿1.8M threshold anyway. The downside is monthly filing obligations — even if no VAT is due, you must file PP.30 every month.

Thai VAT Registration for Phuket Expat Businesses 2026: Full Guide

Q: How often do I file VAT returns in Thailand?

Monthly. VAT returns (Form PP.30) are due by the 15th of the following month, or by the 23rd if filing online. Each month's return must show all VAT collected (output tax), all input VAT from your purchases, and the net amount payable to or refundable from the Revenue Department. Penalties for late filing are ฿500 plus 1.5%/month on any unpaid VAT.

Last updated: December 2025

VAT (Value Added Tax) in Thailand is one of those business topics that's either completely irrelevant to you or suddenly very relevant once you cross a certain income level. The threshold — ฿1.8 million per year — sounds high until you realise that's roughly USD 50,000, which is an entirely reachable figure for a freelance developer, consultant, or small agency operating from Bang Tao or anywhere else in Phuket.

This guide covers when VAT registration in Thailand becomes mandatory, what zero-rated export services mean for businesses serving overseas clients, how to actually register at the Phuket Area Revenue Office, and whether voluntary registration below the threshold makes sense for your situation.

📋 Key Facts: Thai VAT for Phuket Businesses

Standard VAT rate: 7% (temporary reduction from 10%, in place since 1997)
Export services rate: 0% (zero-rated)
Mandatory registration threshold: ฿1.8 million/year from a single business activity
Registration deadline: Within 30 days of crossing the ฿1.8M threshold
Filing frequency: Monthly (PP.30 form, due 15th or 23rd online)
Where to register in Phuket: Phuket Area Revenue Office, Phuket Road, Phuket Town
VAT certificate: PP.20 form issued within 1–5 business days

Thai VAT Rates: What You Need to Know

Thailand technically has a 10% VAT rate under the Revenue Code, but a cabinet resolution has kept it at 7% since 1997. This has been renewed so many times that 7% is effectively permanent — but technically it could change. The Revenue Department's website always has the current applicable rate.

The key rates for Phuket expat businesses in 2026:

Activity Type	VAT Rate	Notes
Sales of goods in Thailand	7%	Standard domestic sales
Services to Thai clients	7%	You charge 7% VAT on your invoice
Export of goods overseas	0%	Zero-rated, no Thai VAT charged
B2B services to foreign businesses (utilised abroad)	0%	Zero-rated export — most common for Phuket remote workers
Medical services	Exempt	Bangkok Hospital, Siriroj, etc. are VAT-exempt
Educational services	Exempt	BISP, UWC, HeadStart not VAT-registered
Financial services	Exempt	Bank transactions, loans
Rental of residential property	Exempt	Standard condo/house rentals not subject to VAT

The ฿1.8 Million Threshold: When Registration Is Mandatory

If your business's annual revenue from a single taxable activity (goods sales or services) exceeds ฿1.8 million, you must register for VAT within 30 days of the threshold being crossed. The threshold applies per business activity — so a company with two distinct business lines could technically have ฿3.6M before either triggers mandatory registration, though this is an aggressive interpretation.

At 2026 exchange rates, ฿1.8 million is approximately:

USD 50,000/year (USD 4,166/month)
EUR 47,000/year
GBP 40,000/year
AUD 78,000/year

Many Phuket freelancers and small agencies will cross this level once they're established. The key is to track your income monthly and register before you hit the threshold — not after you've already exceeded it for months.

⚠️ Don't Wait Until After You Cross the Threshold

If the Revenue Department discovers you should have registered but didn't, you're liable for all VAT that should have been collected from the point you crossed ฿1.8M, plus a penalty of up to 2x the unpaid VAT, plus 1.5%/month interest. Register proactively when you can see you're approaching the threshold.

Zero-Rated Export Services: The Key for International Freelancers

For Phuket expats providing services entirely to overseas clients (the typical digital nomad or remote freelancer situation), the most important VAT concept is zero-rating for export services.

Under Section 80/1 of the Thai Revenue Code, services provided in Thailand but utilised entirely outside Thailand are zero-rated at 0% VAT — not exempt. The distinction matters:

Zero-rated (0%): You are VAT-registered, you charge 0% VAT on your invoices, but you can still reclaim all input VAT you paid on Thai purchases for the business.
Exempt: You're not VAT-registered for that activity, you can't charge VAT, but you also cannot reclaim input VAT.

If your Thai business costs are significant (office rent including applicable VAT, equipment purchases, software subscriptions with Thai VAT), voluntary VAT registration even below ฿1.8M can save money through input VAT reclaims.

What Counts as "Utilised Outside Thailand"?

This is where it gets nuanced, and where an accountant's help is genuinely valuable. The RD's guidance says services are utilised outside Thailand if the economic benefit is received by a non-Thai entity in a foreign country. For a UK company hiring you to build their website — zero-rated. For a US company that has Thai operations using your consulting services through those Thai operations — potentially 7% applies to that portion.

💡 Practical Approach for Pure Remote Workers

If 100% of your clients are foreign companies with no Thai operations, and you deliver services entirely remotely, zero-rating your services is almost certainly correct. Document your client list and keep contracts showing the client is a foreign entity. Most Phuket accountants are comfortable with this position for foreign-client-only freelancers.

How to Register for VAT in Phuket: Step by Step

Gather your documents
For a Thai company: company registration certificate, memorandum of association, shareholder list, director passport/ID, company seal, evidence of business address (lease agreement or utility bill). For an individual with a Thai TIN: passport, Thai address proof, TIN certificate.
Complete Form PP-01 (VAT Registration Application)
Available at the Revenue Department office or on rd.go.th. The form asks for your business name, TIN, address, business activity description, expected annual revenue, and banking details. For export services businesses, describe your activity clearly as "provision of [X] services to foreign clients" — this triggers the zero-rating assessment.
Submit at Phuket Area Revenue Office
Go to the Phuket Area Revenue Office on Phuket Road (เจ้าพนักงานสรรพากรพื้นที่ภูเก็ต), open Mon–Fri 08:30–16:30. Take a queue number, present your documents, and an officer will review the application. For straightforward cases, approval is usually granted on the same day.
Receive your VAT registration certificate (PP.20)
Your VAT registration certificate includes your 13-digit VAT registration number (same as your TIN) and confirms your registration date. Display this certificate at your registered business premises.
Issue VAT invoices (tax invoices)
Once registered, you must issue proper tax invoices for all taxable supplies. A Thai tax invoice must include: your name and address, VAT registration number, invoice date and number, description of goods/services, VAT amount (or "0% VAT — export services"), and total amount.
File monthly PP.30 returns
By the 15th of each month (or 23rd online), submit your PP.30 return showing: output VAT collected (from Thai clients at 7%), input VAT from your Thai purchases, and the net payable/refundable. Even in months with zero net VAT, you must still file.

VAT Filing: Monthly Obligations and Penalties

The administrative burden of VAT registration is the main reason to avoid registering if you're below the threshold and don't have significant Thai input VAT to reclaim. You must file every single month — there's no annual option. Penalties for late filing are ฿500 per late return, plus 1.5% per month on any unpaid VAT.

The good news: the Revenue Department's online filing portal (efiling.rd.go.th) handles PP.30 returns, and many Phuket accountants offer monthly VAT filing as a service for ฿1,000–3,000/month — far cheaper than hiring a full-time bookkeeper.

Action	Deadline	Method
PP.30 monthly VAT return	15th of following month	At RD office
PP.30 monthly VAT return (online)	23rd of following month	efiling.rd.go.th
PP.36 (for VAT on imported services)	7th of following month	At RD office or online
VAT refund claims	Within 3 years of filing	Request with PP.30 filing

Not Sure If You Need to Register for VAT?

Our network of Phuket-based accountants can assess your situation and handle registration from start to finish.

Get Free VAT Advice →

The Phuket Insider — Business Tips Included

Join 5,000+ expats — free weekly tips on running a business in Phuket, tax changes, and expat essentials.

Voluntary VAT Registration: Is It Worth It Below ฿1.8M?

The decision matrix for voluntary registration:

Situation	Register Voluntarily?	Why
High Thai business costs (rent, equipment, services)	✅ Yes	Reclaim 7% input VAT on purchases
Clients require a VAT certificate	✅ Yes	Some international clients and government agencies require it
Approaching ฿1.8M threshold	✅ Yes (proactively)	Avoid the rush and potential penalty period
Minimal Thai business costs	❌ Usually not	Monthly filing burden outweighs benefits
All income from foreign clients at 0%	⚠️ Depends on costs	Zero output tax but can reclaim inputs — do the maths
Sole operator, pure service, few Thai purchases	❌ Usually not	Filing overhead not worth it until threshold approached

Frequently Asked Questions

What is the Thai VAT registration threshold?

฿1.8 million per year from a single taxable business activity. Register within 30 days of crossing this threshold. Voluntary registration is available below this level if you choose.

Do I charge Thai VAT on services to overseas clients?

For services utilised entirely outside Thailand by foreign businesses, the rate is 0% (zero-rated). You don't charge 7% VAT to your overseas clients. If VAT-registered, you can still reclaim input VAT on your Thai business purchases.

How do I register for VAT in Phuket?

Visit the Phuket Area Revenue Office on Phuket Road in Phuket Town. Complete Form PP-01 with your company registration documents or personal TIN. Processing takes 1–5 business days. You'll receive a VAT certificate (PP.20) with your VAT number.

How often do I file VAT returns in Thailand?

Monthly. PP.30 forms are due by the 15th of the following month, or 23rd if filing online. You must file every month even if no VAT is due. Penalties for late filing: ฿500 per late return, plus 1.5%/month on any unpaid VAT.

Can I deregister from Thai VAT if my income drops below ฿1.8M?

Yes. File Form PP-09 (VAT deregistration) at your area Revenue Department office. You can deregister voluntarily or when your income has consistently been below the threshold for a sustained period. The RD will assess your situation before approving deregistration.

What is the penalty for not registering for Thai VAT when required?

Up to 2x the VAT that should have been collected, plus 1.5% per month interest on the unpaid amount. The RD can audit back 5 years. Voluntary registration and payment before the RD discovers the non-compliance significantly reduces penalties.

Running a Business in Phuket? Get Health Insurance Sorted

Expat business owners in Phuket need proper health coverage at Bangkok Hospital Phuket or Siriroj. Compare plans from leading international insurers.

Get a Free Business Health Insurance Quote →

Related Guides

Affiliate disclosure: Some links on this page are affiliate links. We may earn a commission if you use these links. This does not influence our editorial content. Tax regulations change — always verify current rules with the Thai Revenue Department (rd.go.th) or a qualified Thai accountant.

Thai VAT Registration for Phuket Expat Businesses 2026: When You Must (and Should) Register