Thailand VAT invoices need Thai currency and separate VAT lines; Everhour keeps billable rates tied to client work.
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An emailed invoice for a Thailand customer should be ready for review before it leaves your inbox. Attach the invoice as a stable file, use a clear subject line, and include the invoice number, issue date, customer name, amount due, and payment reference in the email body. The attachment carries the tax and commercial details; the email should make the next action obvious.
Thailand uses VAT on supplies of goods, services, and imports. A person or entity that regularly supplies goods or provides services in Thailand is subject to VAT when annual turnover exceeds THB 1.8 million. For a VAT-registered seller, the invoice is a VAT tax invoice, and the Revenue Department states that the current general VAT rate is 7%.
A full Thai VAT tax invoice must show the words "tax invoice," issuer name, address, and taxpayer identification number, buyer name and address, serial number, issue date, and a description, type, category, quantity, and value of the goods or services. It must also show the VAT amount separately from the value of the goods or services.
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 VAT tax base is expressed in foreign currency, convert it to Thai baht using the applicable Revenue Department rule before presenting the VAT amount.
A Thailand invoice email should help the recipient match the attachment to a purchase order, project, contract, or delivery record. Put the invoice number in the subject line, name the customer or project in the first sentence, and list the total amount in Thai baht. Add bank details or payment instructions only after the invoice summary, so the buyer verifies the charge first.
Payment due dates and payment terms are commercial terms rather than listed statutory VAT tax-invoice particulars in Thailand. The invoice should still state them clearly when your agreement includes them. A clean email reduces avoidable delays, especially when the buyer's accounting team needs the tax invoice, approval record, and payment reference in one thread.
A free invoice tool is enough when you need one email-ready document, know the buyer details, and already have the line items, VAT treatment, and payment terms confirmed. It works well for a single job, a repeat customer with simple terms, or a small batch of invoices that you can review manually before sending.
A managed workflow fits recurring client work, changing billable rates, mixed billable and non-billable time, or invoices built from approved time entries. Everhour separates cost and billable rates, supports per-person defaults and per-project overrides, preserves dated rate history, and prices billable work by project, member, or task before invoicing.
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 registrant must issue a tax invoice and copy for every sale of goods or provision of services at the time VAT liability occurs, provide it to the customer, and keep the copy. Email delivery can support that workflow when the attached document contains the required VAT tax-invoice particulars and the seller keeps the required copy.
The Revenue Department states that the current general VAT rate is 7%. The Revenue Code sets a 10% rate that may be reduced by Royal Decree, so the invoice should use the rate currently applicable to the transaction. The VAT amount must be shown separately from the value of the goods or services.
Yes. 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. Foreign-currency tax bases must be converted to Thai currency under the applicable conversion rule.
The issuer's taxpayer identification number is a required tax-invoice field. The Revenue Department's tax-identification rules require taxpayers or income payers to obtain and use a taxpayer identification number unless an individual may use a personal identification number instead. The buyer name and address also belong on a full Thai VAT tax invoice.
Thailand's statutory VAT tax-invoice particulars list the issue date, but they do not list a payment due date or payment terms. Those terms are normally set by agreement. Include the due date in the invoice and email for collection clarity, but do not treat it as a substitute for required VAT tax-invoice particulars.
Everhour separates internal cost rates from client-facing billable rates, with per-person defaults and per-project overrides. Dated rate history keeps older work tied to the rate in effect at the time, while project, member, and custom task rates support different client billing structures.
Everhour Billing & Invoicing lets users select uninvoiced time and expenses, preview the breakdown, and generate an invoice from billable time, rates, and billable expenses. Non-billable work stays out of the amount due, and invoice line items can be grouped by project, task, person, date, or another available breakdown.
Use Everhour to keep rates, approved time, and client billing records connected before invoice creation, so recurring Thailand billing starts from accurate billable work.
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