About E-TAX in Thailand

Four methods of E-TAX in Thailand

Currently, there are four methods of E-Tax implementation notified by the Thai Revenue Department.

1. E-TAX By E-MAIL : Method using E-MAIL.

2. E-TAX UPLOAD : Method of uploading an xml file to the Revenue Department.

3. E-TAX PROVIDER : Method of using a service provider.

4. E-TAX Host to Host : A method of directly connecting the company’s server and the revenue bureau’s server, and passing files directly from the company’s server.

E-TAX　By E-MAIL

If you create a PDF/A3 (different from a normal PDF) summarizing INVOICE RECEIPT PAYMENT RECEIPT, etc., and send it to the other company with CC to the Revenue Department, you will receive an approval email from the Revenue Department. SimLex is developed and implemented in this format.

E-TAX UPLOAD

Upload the xml file digitally signed by your company (output of details such as INVOICE RECEIPT PAYMENT RECEIPT) to the website of the Revenue Department

E-TAX PROVIDER

A method of using a service provider. After requesting a company that specializes in E-TAX, requests exchanges with the Revenue Bureau. SimLex’s customers also have a track record of companies operating in this manner.
(Reference) https://www.getinvoice.net/
It seems to be the easiest method to implement.

E-TAX　Host to Host

A method of directly connecting the company’s server and the revenue bureau’s server, and passing files directly from the company’s server. Difficulty and cost are higher than other methods.

Revenue Department reference site and digital ID registration

The document can be viewed on the following website (Thai only)
(Reference) https://etax.rd.go.th/etax_staticpage/app/index.html#/index/main#top

In addition, regardless of the method, registration of a digital ID is required when registering with the Revenue Department for the first time.
The registration website is here. 　https://www.thaidigitalid.com/homepage/

Apply for a digital ID on this site and use it to apply for E-TAX to the Revenue Department after completion.

Recommended method by SimLex

Our company recommends method 1 or 3, and is actually used by customers. The point of concern is that the document presented by the Revenue Department are currently only available in Thai.
First of all, if it is only E-TAX, it seems that the shortest route is to consider method 3.

Developmet Co., Ltd. Toshio Koga

After graduating from Kyushu University, he worked for a major bearing company and experienced process design in the production technology laboratory. After that, he established SimLex Development Co., Ltd. in Thailand, where he has been developing and selling ERP, production management systems, and accounting systems from zero-based systems up to the present.

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