Thai VAT invoices need specific fields and currency treatment. Everhour keeps billable rates organized before invoice amounts are prepared.
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Use this page when you need a client invoice for work supplied in Thailand, especially when the seller is VAT-registered or expects to cross the VAT registration threshold. Thailand uses VAT on supplies of goods, services, and imports, and VAT registration generally applies once annual turnover exceeds THB 1.8 million for regular supplies or services in Thailand.
The invoice should give the buyer enough information to approve the charge, match it to the order or contract, and record VAT correctly. A VAT registrant must issue a tax invoice and copy for each sale of goods or provision of services at the time VAT liability occurs, provide it to the customer, and keep the copy.
A full Thai VAT tax invoice must show the words "tax invoice," the issuer's name, address, and taxpayer identification number, plus the buyer's name and address. It also needs a serial number, issue date, description or type of goods or services, quantity, value, and any other particulars prescribed by the Director-General.
The VAT amount must appear separately from the value of the goods or services. The Revenue Department states that the current general VAT rate is 7%, while the Revenue Code sets a 10% rate that may be reduced by Royal Decree. Payment terms and due dates are commercial terms, since Thailand's listed statutory VAT tax-invoice particulars include the issue date but do not list a due date.
Thai VAT tax-invoice particulars must use Thai language, Thai currency, and Thai or Arabic numerals unless the VAT registrant has approval from the Director-General to use a foreign language or foreign currency. A template for Thailand should therefore present the tax base, VAT, and total in Thai baht unless an approved exception applies.
Foreign-currency values need conversion to Thai currency. If the Thai money is received in the same tax-liability month, that amount applies. Otherwise, use the Bank of Thailand average selling rate on the last working day of that month. Imports use the Customs Department rate. Record the conversion method clearly for audit support.
A free template works for a single invoice when you already know the client, line items, VAT treatment, currency, and payment terms. It is enough for occasional billing, simple service work, or a draft that an accountant will review before issue.
A managed workflow fits recurring client work, mixed rates, and projects where tracked time becomes the invoice source. Everhour separates internal cost rates from client billable rates, supports default per-person rates and project overrides, keeps dated rate history, and prices billable work by project, member, or task before invoice amounts are prepared.
This content is for general information only, may not be fully up to date, and is provided without any warranty or liability.
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A VAT-registered seller in Thailand must issue a tax invoice and copy for every sale of goods or provision of services at the time VAT liability occurs. Non-registered sellers still need clear commercial invoices, but the VAT tax-invoice rules apply to VAT registrants and require specific fields such as the issuer's taxpayer identification number and separated VAT amount.
The Revenue Department states that the current general VAT rate is 7%. The invoice should show VAT separately from the value of the goods or services, using the applicable VAT rate for the transaction. Do not describe VAT as a zero amount unless a valid VAT treatment supports that presentation.
Thai VAT tax-invoice particulars must be in Thai language, Thai currency, and Thai or Arabic numerals unless the VAT registrant has approval from the Director-General to use a foreign language or currency. If the tax base is expressed in foreign currency, convert it to Thai baht using the required conversion rule.
Thailand's statutory VAT tax-invoice particulars list the issue date but do not list a payment due date or payment terms. Add payment terms when the contract, purchase order, or client process requires them. Treat the due date as a commercial collection term, separate from the required VAT tax-invoice fields.
Combining the VAT amount with the service value creates a review problem. A full Thai VAT tax invoice must clearly separate the VAT amount from the value of the goods or services. Missing buyer details, a missing serial number, or an omitted issuer taxpayer identification number also slows approval and recordkeeping.
Everhour separates cost and billable rates so project reports can show internal expense and client-facing revenue separately. Teams can set default rates by person, override rates by project, date rate changes, and price billable work by project, member, or task before invoice totals are reviewed.
Use Everhour to manage dated rates, project overrides, and billable pricing before invoice preparation, so Thailand billing starts from organized time and rate data.
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