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New to My Merchant Account/OMS?

With My Merchant Account/OMS, you have 24/7 access to view submissions and payments, manage disputes1 and update your account information – all in one secure location.

Already Enrolled?

Returning users can log in here:


Get more out of your Merchant account

We know that you are always striving for more efficiency and control - when it comes to managing your business financials. So we’ve made enhancements to our online account management suite of tools with that concern in mind.

With the enhanced Payments tool you can.

• Access your transactions, whenever you need, with new reporting options
• Find what you’re looking for easily with customised search options and navigation
• View your submissions, settlements and payments on tablet computers

My Merchant Account/OMS provides you with the convenience, control and flexibility you need to focus on when managing your business. Utilise any or all of our helpful tools – Payments, Disputes and Account Management – to help you save time and money, and streamline your day-to-day operations.

  • A quick, reliable way to track your cash flow
    In Payments, see a 12-month record of your submissions, view pending payments, sign up to receive secure e-statements and more. You can stay on top of cash flow and gain greater control over your business.

  • Easy-to-manage dispute resolution
    With Disputes, receive automatic alerts for new and urgent enquiries, respond to multiple cases at a time and attach electronic supporting documents. Save time, reduce paperwork and save money by reducing no-reply chargebacks.

  • Efficient account management
    In Account Management, log on 24/7 to update your contact information at your convenience. It’s a fast, easy way to keep your account current.
  • Support when you need it
    Along with these tools, you’ll have the full support of American Express. You can contact us at any time via e-mail through the Secure Message Centre with questions or servicing requests for your account.

    Download the brochure to learn more about the tools that can help you focus less on managing your account and more on managing your business.

Frequently Asked Questions

Below you’ll find answers to some of the most common questions about My Merchant Account/OMS.

  • What are the benefits of using My Merchant Account/OMS to manage my account online?
    The benefits to you are convenience, control and flexibility. With My Merchant Account/OMS, you have 24/7 access to view submissions and payments, manage disputes and update your account information – all in one secure location. To get started, click here or contact us to enrol.

  • How do I enrol in My Merchant Account/OMS to manage my account online?
    First, create your American Express User ID and Password. Then have the following information handy: your name, phone number, postcode, e-mail address, your American Express Merchant number, payee Merchant number, bank sort code and bank account number. Click here to enrol now. You may also contact us to enrol.

  • What information can I access if I register for My Merchant Account/OMS?
    When you enrol in My Merchant Account/OMS, you can select what information you want to see and manage online: Payments, Disputes and Account Information. In Payments, you can see all your submissions, view pending payments and sign up to receive your monthly e-statement. In Disputes, you can receive notification of new and urgent disputes, respond to disputes online with supporting documentation, and track cases and updates. In Account Information, you can update your account specifics and preferences.
  • Can I utilise My Merchant Account/OMS to update or correct information about my American Express Merchant account?
    My Merchant Account/OMS gives you 24/7 access to update your Merchant account information. After you have enrolled and logged in to My Merchant Account/OMS, make sure you have selected "Update Your Merchant Account” in the Enrolment Options section. If you're not enrolled, click here to get started, or contact us to set up your account.

  • What is the Secure Message Centre?
    The Secure Message Centre gives you a secure e-mail channel to ask questions or request maintenance that is specific to your account. As an alternative to calling customer service, the Secure Message Centre gives you another convenient way to communicate with American Express at any time.

  • Is there a fee to manage my account, view payments, resolve disputes or update my Merchant account information online using My Merchant Account/OMS?
    American Express currently offers this service free of charge to Merchants. To become an American Express Merchant, click here To enrol in My Merchant Account/OMS, click here or contact us

  • What if I need help enrolling in My Merchant Account/OMS, navigating the site or using any of its features?
    For assistance with enrolment, site navigation or using any features of My Merchant Account/OMS, you may contact us.