Everhour supports accurate billing rates, while Thai VAT invoices require specific tax fields and baht-based records.
Fill in your details, add line items, hit Print when ready.
| Description | Qty | Rate | Tax | Amount |
|---|
The calculator gives you the number — Everhour takes it from there.
One click and you're timing. Start a timer, add an entry, edit the details. This is exactly how it feels in Everhour.
Set a budget, assign rates, and get alerted before you're over.
Measurement
Track your budget through time or costs
Every report you need — configured your way, always up to date.
Tracked hours flow straight into a polished invoice — no copy-paste, no manual math.
Use this page to prepare an invoice for goods or services supplied in Thailand, especially when the seller is VAT-registered. The finished invoice should identify both parties, describe the sale, show each line value, separate VAT from the goods or services value, and present the payable amount in a format the buyer can process without follow-up.
Thailand uses value added tax 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. VAT-registered businesses issue tax invoices at the time VAT liability occurs and keep copies for their records.
A full Thai VAT tax invoice must show the words "tax invoice," the issuer name, address, and taxpayer identification number, plus the buyer name and address. It also needs a serial number, issue date, description, type, category, quantity, and value of the goods or services. The VAT amount must be shown separately from the value.
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. Thailand's listed VAT tax-invoice particulars include the issue date, but they do not list payment terms as a required tax-invoice field.
Thai VAT invoices should 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 currency. That rule matters when you invoice an overseas customer from Thailand or bill a Thai buyer from a business process that normally uses another language.
Foreign-currency amounts need conversion to Thai baht when the VAT tax base is expressed in another currency. Use Thai money received if the foreign currency is sold in the same tax-liability month. Otherwise, use the Bank of Thailand average selling rate on the last working day of that month. Imports use the Customs Department rate.
A free invoice works for a one-off sale, a small client job, or a draft you need to review before sending. It is enough when you already know the buyer details, VAT treatment, line descriptions, currency, payment terms, and supporting records. The main risk is manual re-entry across time logs, rate tables, invoice numbers, and accounting records.
A managed workflow fits recurring client billing, project work, and teams with different billable rates. Everhour separates cost and billable rates, supports default per-person rates and per-project overrides, preserves dated rate history, and prices billable work by project, member, or task. That structure keeps the Thailand invoice separate from the operational records behind it.
This content is for general information only, may not be fully up to date, and is provided without any warranty or liability.
High Performer
G2
Summer 2026
Best Ease Of Use
Capterra
Summer 2026
Rated in the top time trackers across G2, Capterra, and TrustRadius — with consistent praise for ease of use, integrations, and support.
A Thailand invoice needs VAT treatment when the seller is VAT-registered and the transaction falls under VAT rules. Registration generally applies once annual turnover exceeds THB 1.8 million for a person or entity that regularly supplies goods or provides services in Thailand. Non-VAT commercial invoices still need enough detail for payment and accounting records.
A full Thai VAT tax invoice must include the issuer's taxpayer identification number. 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. Add the identifier consistently across invoices, receipts, and tax records.
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 VAT tax base is stated in a foreign currency, convert it to Thai baht under the Revenue Department conversion rule.
The VAT amount should appear separately from the value of the goods or services. A full Thai VAT tax invoice needs line descriptions, quantities, values, and the VAT amount split out clearly. Avoid burying VAT inside a single total, because the buyer needs a separate VAT figure for tax and accounting review.
Thailand's statutory VAT tax-invoice particulars list the issue date but do not list a payment due date or payment terms. Add terms such as due on receipt, 15 days, or 30 days when the contract or customer process requires them. Treat payment terms as commercial information rather than a listed VAT tax-invoice field.
Everhour separates internal cost rates from client-facing billable rates, with default per-person rates and per-project overrides. Rate changes can be dated, so older work keeps its original calculation while new work uses the updated rate before billable amounts move into invoicing.
Everhour Billing & Invoicing converts tracked billable time and expenses into invoices, then groups invoice data by structures such as project, task, person, or date. Non-billable work stays out of invoice totals, which helps keep client-facing line items focused on approved billable work.
Use Everhour to keep billable rates, project pricing, and dated rate changes tied to tracked work before invoices are prepared, reducing manual billing errors.
14-day free trial · No credit card · Cancel anytime
