Easy to manage
E-Stamp Duty.

E-STAMP DUTY SOLUTION

GeStamp Duty คือ ระบบที่ช่วยบริหารข้อมูลขอเสียอากรแสตมป์เป็นตัวเงินสำหรับตราสารอิเล็กทรอนิกส์ (อส.9) และตราสารกระดาษ (อส.4, อส.4ก, อส.4ข) บนระบบออนไลน์

ช่วยให้คุณทำงานออนไลน์ได้ครบ จบในที่เดียว: ส่งข้อมูล, ตรวจสอบ และดาวน์โหลดใบเสร็จอย่างปลอดภัย

e-stamp duty service provider
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e-stamp duty service provider

Ginkgo Soft Co.,Ltd.

The information system has been certified under the name of... 

“GeStamp Duty” To act as a service provider on behalf of clients for the preparation and submission of monetary stamp duty payments, in accordance with the standard guideline on the provision of services for the creation, submission, or storage of electronic data (ขมธอ. 35-2567). First!!!

We are dedicated to enhancing our application and services to support fast, secure, and paperless operations for all users.

e-stamp duty service provider
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e-stamp duty process

GESTAMP DUTY SOLUTION

e-Stamp Duty process

Stamp duty payers are required to complete only 4 steps.

  1. Submit the e-stamp duty data to the GeStamp Duty system. (1)
  2. Download the payment files (Pay-in slip, QR payment). (4)
  3. Make the e-stamp duty payment using any convenient payment method. (5)
  4. Download the e-stamp duty payment receipt from the GeStamp Duty system. (9)

Working Step

GESTAMP DUTY SOLUTION

Working Step

Release Note

version 2.2 : May 17, 2026

GeStamp Duty เปิดตัวการอัปเดตใหม่เพื่อยกระดับประสบการณ์การใช้งานให้สะดวก รวดเร็ว และปลอดภัยมากยิ่งขึ้น รองรับการแยกชุดข้อมูล (Batch) ตามเลขที่สาขาสำหรับตราสาร อส.4ก และ อส.4ข พร้อมเพิ่มความยืดหยุ่นในการสร้าง Batch ด้วยตนเอง นอกจากนี้ยังปรับปรุงระบบ Single Sign-On (SSO) ให้รองรับการเลือกบัญชีผู้ใช้งานจาก Identity Provider ได้อย่างชัดเจนหลังการ Logout รวมถึงปรับปรุงการทำงานของหน้าจอและปุ่มควบคุมต่าง ๆ เพื่อช่วยลดความผิดพลาดระหว่างการ Upload และแก้ไขข้อมูล ทำให้การดำเนินงานด้านอากรแสตมป์อิเล็กทรอนิกส์มีประสิทธิภาพมากยิ่งขึ้นสำหรับองค์กรทุกขนาด

GeStamp Duty introduces a new release designed to improve usability, operational efficiency, and security for enterprise users. This update adds support for batch separation by Branch Number for OS4A and OS4B instruments, along with enhanced flexibility for manual batch creation. The Single Sign-On (SSO) process has also been improved to allow users to clearly select their preferred account from the Identity Provider (IdP) after logout. In addition, several UI and workflow enhancements have been implemented to reduce user errors during file uploads and data correction processes. These improvements help organizations manage electronic stamp duty operations more smoothly, accurately, and efficiently than ever before.

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Monetary stamp duty payments for electronic instruments can be submitted online via the API service
provided by the Revenue Department. At present, the system supports 27 types of instruments, as listed below: 

Instrument 1: Lease of land, buildings, other structures, or rafts
Instrument 2: Transfer of share certificates, debentures, bonds, or debt certificates issued by companies, associations, partnerships, or any organizations
Instrument 3: Hire-purchase of property
Instrument 4: Contract for work or manufacturing (work-for-hire agreement)
Instrument 5: Loan agreement or overdraft arrangement with a bank
Instrument 6: Insurance policy
Instrument 7: Power of attorney
Instrument 8: Proxy for voting in company meetings
Instrument 9(1): Bill of exchange
Instrument 9(2): Promissory note
Instrument 10: Bill of lading
Instrument 11(1): Share certificates, debentures, or debt certificates issued by companies, associations, partnerships, or any organizations
Instrument 11(2): Government bonds of any government sold in Thailand
Instrument 12: Cheque or any order used in lieu of a cheque
Instrument 13: Deposit receipt
Instrument 14: Letter of credit
Instrument 15: Traveler's cheque
Instrument 16: Delivery order
Instrument 17: Guarantee agreement
Instrument 18: Pledge agreement
Instrument 19: Warehouse receipt
Instrument 20: Order to deliver goods
Instrument 21: Agency agreement
Instrument 23: Duplicates or counterparts of instruments
Instrument 27(a): Partnership agreement
Instrument 27(b): Amendment to partnership agreement
Instrument 28(c): Receipt for sale, hire-purchase, conditional sale, or transfer of ownership of vehicles required to be registered

e-Stamp duty ?

What is the term 'electronic instrument'?

An instrument under the stamp duty rate schedule that is created as electronic data in accordance with the Electronic Transactions Act.

Stamp Duty Payment Certification Code

A code issued by the Revenue Department to the taxpayer upon receipt of stamp duty payment, used for verifying key information related to the electronic instrument.

Verify e-stamp duty payment certification code

https://efiling.rd.go.th/ef-cms-web/check-tax

Who is the recipient named on the receipt?

The person submitting a monetary stamp duty payment request for an electronic instrument must be a contracting party to the instrument (agreement). The receipt will be issued in the name of the party specified in the instrument data submitted to the system. For example, in a contract for work under the stamp duty schedule, the duty is to be paid by the contractor. However, if the employer (hirer) purchases the stamp duty and is listed as the buyer in the submission, the receipt will be issued in the employer's name.

When is an electronic instrument considered fully stamped?

Once the Revenue Department has issued the receipt and the Stamp Duty Certification Code, the taxpayer is required to reference or attach the certification code to the electronic instrument.

Element
e-Stamp Duty Import Data

Import and Validate Data

  • You can import multiple records at a time by...
    • วางไฟล์ไว้ที่ folder sFTP หรือระบบ zDOX
    • Upload file on the web application
    • submit file via API
  • The system supports three types of file imports: .xlsx, .csv, .json
  • The system is capable of automatically calculating the stamp duty prior to submission.
  • ระบบสามารถคำนวณค่าอากรแสตมป์ก่อนนำยื่นให้อัตโนมัติ
  • The system is capable of automatically identifying overdue stamp duty payment items and calculating applicable surcharges and fines.
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Submit 100,000 transaction Once

ระบบ GeStamp Duty รองรับการส่งข้อมูลไปยังกรมสรรพากร 100,000 รายการต่อ 1 ชุดข้อมูล (Batch) ซึ่งเป็นไปตามที่กรมสรรพากรรองรับ ณ ปัจจุบัน 

ช่วยให้ลดจำนวนรายการที่ต้องชำระเงิน ส่งผลให้ประหยัดค่าธรรมเนียมการโอนเงิน

bulk submit

Other e-stamp duty features

  • Monetary stamp duty payments can be requested for 27 types of electronic instruments.
  • Compatible with the latest version of the Revenue Department's system.
  • Invalid data can be exported from the system in Excel format for correction, and the corrected file can then be re-imported into the system.
  • Data can be edited directly from the system interface, with invalid entries highlighted and the reasons for errors displayed.
  • The system allows assigning reviewers and approvers for records.
  • Monetary stamp duty payment requests can be imported using Form Or.Sor.4 for reference in additional submissions
  • There are three types of system users:
    • Preparer
    • Approver
    • Company Administrator
  • The system allows the assignment of multiple affiliated companies; however, subsidiaries under these companies cannot be assigned.
  • The Company Administrator is responsible for creating user accounts and assigning user permissions.
  • Preparers and Approvers can only access data of affiliated companies to which they have been granted permission.
  • Multiple additional monetary stamp duty payment requests can be submitted.
  • Additional requests can be made for previous items submitted using either Form Or.Sor.9 or Form Or.Sor.4."

e-Stamp duty Benefits

Save

SAVE

Save time and costs in document preparation and delivery.

Convenient

CONVENIENT

Convenient and reduces the time required to search for documents.

Calculate

CALCULATE

Reduce errors in tax calculation.

Inform

INFORM

Provides information on the final date for submitting stamp duty payment requests.

Validate

VALIDATE

Verify all records before submitting to the Revenue Department. 

ISO-IEC-27001 Ginkgo Soft

e-Stamp Duty : Trust and Secure

ISO/IEC 27001 : 2022 Certified

Ginkgo Soft Co.,Ltd operates a management system in accordance with the requirement of ISO/IEC 27001 : 2022 and will be assessed for conformity within the 3 year term of validity of the certificate.

Scope

The provision of zDOX Web Application (SAAS) for content management. Including to access control to content,

The provision of getInvoice Application (SAAS) for generate e-Tax Invoice, and

The GeStamp Duty Application (SAAS) service for preparing and filing e-Stamp Duty.

TUV NORD

Beyond the basic process of submitting monetary stamp duty payments for electronic instruments (Form Or.Sor.9), GeStamp Duty provides additional features to simplify your workflow. Our team is available to assist you on any business day.

GeStamp Duty