Calculate VAT on any amount in Thailand, whether you need to add it to a price or find it inside a total.
Add VAT on top of a price that does not yet include it.
Almost everything sold in Thailand is 7 percent. Zero-rated covers exports and certain international services. VAT-exempt sales carry no VAT at all.
Your total sales over the last 12 months. We check it against the THB 1.8 million point where VAT registration becomes mandatory.
How the VAT is worked out on your amount.
| Price before VAT | 10,000.00 |
| VAT at 7%10,000 × 0.07 | + 700.00 |
| Total including VAT | 10,700.00 |
This is an estimate based on the 7 percent rate and the THB 1.8 million VAT threshold. Whether a specific sale is standard-rated, zero-rated, or exempt depends on the transaction and the rules in force under the Revenue Code. The 7 percent rate is set by Royal Decree and renewed periodically. Confirm your treatment with a tax professional before invoicing.
Value Added Tax (VAT) is a consumption tax of 7 percent on the sale of goods, the provision of services, and imports in Thailand. It is an indirect tax: the business adds it to the price and the buyer ultimately pays it, while the business collects it and passes it to the Revenue Department.
VAT-registered businesses charge VAT on their sales (output VAT) and claim back the VAT they paid on their own purchases (input VAT). You remit the difference to the Revenue Department through the monthly PP.30 return, so VAT is really a tax on the value you add, not on your full revenue.
A note on the rate: the Revenue Code sets a statutory rate of 10 percent, but a Royal Decree has kept it reduced to 7 percent since 1992, renewed periodically. The current extension runs to 30 September 2026, after which it is expected to be renewed again.
There are two everyday calculations, and the calculator above does both. Use the first when you have a price and need to add VAT, and the second when you have a VAT-inclusive total and need to find the VAT inside it.
VAT registration with the Revenue Department is mandatory once your turnover exceeds THB 1.8 million over a 12-month period, using Form Por.Por.01 within 30 days of crossing the threshold. Importers and exporters must register regardless of turnover, and non-resident providers of digital services to Thai consumers must register once their Thai sales pass THB 1.8 million. Registering for VAT is also required if you want to hire foreign employees.
Below THB 1.8 million a business is treated as a small entrepreneur and is not required to register, does not charge the 7 percent VAT, and does not file monthly returns. You may register voluntarily, which lets you issue tax invoices and claim input VAT but commits you to monthly PP.30 filing.
Crossing the threshold and not sure where to start? Our Bangkok team handles VAT registration and the monthly PP.30 returns that follow.
Both mean no 7 percent is added to the sale, but they are not the same thing, and the difference matters for your cash flow.
Zero-rated (0%). A taxable sale charged at 0 percent under Section 80/1, covering exports of goods, services performed in Thailand but used abroad, and international transport. Because it is still a taxable sale, you can claim or refund the input VAT on your related purchases.
VAT-exempt. The sale sits outside VAT entirely under Section 81, covering sales of unprocessed agricultural goods, education, healthcare, domestic transport, and the rental of immovable property. No output VAT, and you generally cannot claim the input VAT on related purchases.
The three treatments under the Revenue Code, summarised.
| Treatment | Applies to |
|---|---|
| 7% | Most sales of goods and services in Thailand, and imports |
| 0% | Exports, services used abroad, and international transport |
| Exempt | Unprocessed agricultural goods, education, healthcare, domestic transport, and rental of immovable property |
What businesses ask before they register.
The standard VAT rate is 7 percent. The Revenue Code sets a statutory rate of 10 percent, but a Royal Decree has kept it at 7 percent since 1992 and is renewed every two years. The current extension runs to 30 September 2026.
THB 1.8 million in turnover over a rolling 12-month period. Once you cross it, you must register with the Revenue Department within 30 days using Form Por.Por.01.
Multiply the price by 1.07. A THB 10,000 price becomes THB 10,700, of which THB 700 is VAT.
Divide the total by 1.07 to get the price before VAT, then the VAT is the difference. A THB 10,700 total breaks down to THB 10,000 net and THB 700 VAT. Taking 7 percent of the gross total overstates the VAT.
Zero-rated sales are taxable at 0 percent under Section 80/1, so you charge no VAT but can still claim back the input VAT on your purchases. Exempt sales sit outside VAT entirely under Section 81, so you charge no VAT and generally cannot claim back input VAT either.
Yes. A business below the THB 1.8 million threshold can register voluntarily. It lets you issue tax invoices and claim input VAT, but commits you to filing the monthly PP.30 return like any other VAT-registered business.
The monthly PP.30 is due by the 15th of the following month. Where input VAT exceeds output VAT, the excess is carried forward or, in defined cases, refunded.
No. Exports are zero-rated under Section 80/1, so they are taxable at 0 percent. The exporter can still claim back the input VAT on the goods or services that went into the export.
Setting up or registering for VAT in Thailand? We handle company registration, VAT registration with the Revenue Department, VAT-compliant invoicing, and your monthly PP.30 returns. Two-week setup in most cases.