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A serial number is a unique 12-digit ID that identifies your software. MYOB provides you with a serial number when you purchase AccountRight.

You can enter your serial number when creating or activating a new company file. Before a company file is activated, you can also enter the serial number on the Company Information window (Setup menu > Company Information).

Keep reading to learn how to find or change your AccountRight serial number.


Finding your serial number

Finding your serial number

Depending on your scenario, there's a few ways to find your serial number.

In AccountRight

If have an AccountRight company file that's been activated you'll find your serial number in AccountRight's Company Information window (open your company file and go to Setup > Company Information):

Company file information serial number

Outside of AccountRight

If youyou'll find your serial number...
purchased a  point-of-sale activation (POSA) card or voucher from a retail store

in the email we send you (after redeeming your redemption code at

Redemption codes are not the same as a serial number and have a different format (15 characters with a mix of letters and numbers, instead of a serial number's 12 digits).

purchased an AccountRight software CDon the base of the product box
purchased or upgraded AccountRight from the MYOB websitein the email confirming your purchase
downloaded a trial versionin the email confirming your download


You can also check which serial numbers you’ve registered by logging into my.MYOB: Australia | New Zealand and going to My Products.

my.myob My Products showing serial number

Changing the serial number in your company file

Changing the serial number in your company file

There may be times when you need to change the serial number that’s recorded in your file to another number that’s registered to you. You might need to change it if:

  • someone created a file for you and used their own serial number to activate it (for example, your accountant).
  • you have more than one copy of AccountRight, and have subscribed using a different serial number to the one recorded in your file.
  • you just purchased a new copy of AccountRight (which includes a new serial number and subscription), but you were already using an AccountRight file.
    If you want to upload it online using a subscription that’s linked to another serial number, you’ll need to change the number that’s in your file.

To change your serial number, open your company file in AccountRight, go to the Help menu and choose Change Serial Number. You'll need internet access to complete the process.

What if the Change Serial Number function isn't available?

What if the Change Serial Number function isn't available?

This function is only available if:

  • you're using the new AccountRight (this function isn't available in classic versions, such as AccountRight v19)

  • your company file has been activated or confirmed

  • you are signed on to your company file as an administrator

  • your company file is in your local AccountRight library (not online, checked out, or in a network library).

    Library browser window showing company file in local library

  • your company file doesn't use bank feeds

  • you haven't signed up for our Pay Super service.

If you need to change your serial number but the function isn't clickable in the Help menu (as shown below), contact us and we'll help you out.

Change Serial Number function greyed out


Error: "The serial number doesn't match your account"

Error: "The serial number doesn't match your account"

example error

When putting a company file online or upgrading it, a check is done to confirm that you're entitled to perform the task. If the serial number in the company file isn't linked to the email address you’ve logged in with, you'll see this message.

How do I fix it?

If the serial number shown in the message isn't yours, or it's an old serial number, click Change Serial Number in the error message to update it. Learn more about changing your serial number.

Also check that you're signed in to your MYOB account as an online owner or online administrator. The online owner is usually the person who purchased the AccountRight subscription. An online administrator is someone who has been invited by the owner to perform this role.

If you're not sure who has these roles in your business, or you think you're the online owner or administrator, contact us and we'll help sort it out.