Online Payment Gateway Service

Maximize your e-commerce business to serve customers 24 hours.

Payment processing system for online stores.

Entrusted when shopping online 24/7 with global standardized secure network firewall.

Ensure with the highest level of protection.

With the use of OTP (one-time password) to secure both shopper and merchant.

Get paid with no delay. Have funds transferred to your account in the next day.

Manage cash flow and monitor transactions with ease and more flexibility.

Accept all cards and mutiple types of payments.

Accept payments of balance in full via all internationally recognized credit and debit cards, and from any issuing bank worldwide, as well as the swipe-to-pay feature of Samsung Pay. Besides, cardmembers can choose to pay with installments through KTC Installment Payment or redeem for products and services using KTC FOREVER points.


Check transactions promptly.

Monitor card acceptance transactions on daily basis and request for tax invoices online through ClickKTC MERCHANT.

Contact Merchant Service

02 123 5700

Everyday 24 hours

Application Details

Required Documents

For all merchants

  1. A filled-out application form with a 30-baht tax stamp
  2. Copy of commercial registration/ certificate of incorporation (must have been registered and active for at least 6 months before the date of application)
  3. Copy of personal identification card/passport and work permit (in case the signing person is foreigner)
  4. Letter of consent for withdrawal/transfer/direct debit from Krungthai Bank’s account
  5. Copy of the first page of Krungthai Bank’s account passbook
  6. Copy of bank statement of recent 4 months (any bank account)
  7. Business establishment's interior and exterior photographs/ image of website homepage (for e-Commerce business)
  8. Special/Specialized Business License
  9. Map of the location of establishment

In case of authorization

Authorization with a 30-baht tax stamp and a copy of personal identification card of the authorizing person

For e-Commerce businesses

  1. Agreement of bank guarantee and  agree to deduct deposits for debt repayment
  2. Copy of e-Commercial registration certificate or proof of right to use hosting/domain name service
  3. Capture of webpages

Frequently Asked Questions (FAQ)