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Thai full tax invoice checklist
Got a tax invoice? Tick each item to see whether it has everything the law requires. If anything is missing, the buyer cannot claim it as input tax. It runs in your browser and sends nothing anywhere.
What kind of invoice do you have?
0 of 8 items present
With any item missing, the buyer cannot claim it as input tax. Ask the shop for a new invoice. Still missing:
- The words "Tax Invoice" clearly displayed
- Seller's name, address, and taxpayer ID number
- Buyer's name and address, plus the buyer's taxpayer ID number if the buyer is VAT-registered
- Tax invoice number, and book number if any
- Name, kind, type, quantity, and value of the goods or services
- VAT amount, shown clearly separate from the value of the goods
- Date the tax invoice was issued
- A statement of head office or branch number, for both the seller and the buyer
How it is calculated
- A full tax invoice must have all 8 items. Missing any one means it cannot be claimed as input tax.
- An abbreviated tax invoice cannot be claimed as input tax. Ask for a full one.
- Figures must not be corrected by pen. Cancel and reissue, or issue a credit note.
Frequently asked questions
How many items must a full tax invoice have?
Eight: the words tax invoice, the seller's details, the buyer's details, the number, the goods or services, VAT shown separately from the value, the date, and head office or branch.
Is it valid without head office or branch stated?
No. It must be stated for both seller and buyer. Ask the shop to issue a new invoice with both.
Can a receipt and a tax invoice be the same document?
Yes. Use a single document titled with both "tax invoice" and "receipt", as long as it includes every item required on a full tax invoice.
Let the program issue tax invoices with every required item
In GORINY a full tax invoice comes from the real sales bill, with the seller, buyer and head office or branch details the law requires, and you can email it to the customer.
Sources and notes
Items follow Section 86/4 of the Revenue Code and the Director-General's notification on stating head office or branch.
Last checked 27 October 2026. Use it as an estimate and check the Revenue Department announcements before you file.