AccountEdge and macOS Catalina & Big Sur

Article ID: 2025229                      Last updated:  23 September 2021


AccountEdge is not currently compatible with macOS 10.15 Catalina, 11.0 Big Sur or Apple's new M1 processors.  However, options exist to use AccountEdge under Catalina and Big Sur.


AccountEdge for macOS Catalina, Big Sur and M1 processors

Updated 23 September 2021

We are delighted to announce that a version of AccountEdge that runs within macOS Catalina and Big Sur, as well on Mac’s using Apple’s new M1 processor, is scheduled for release in the coming weeks.

Whilst we do not yet have a release date, the UK version is now in testing in preparation for its upcoming launch.

Priority Software, the global developers of AccountEdge products, have successfully launched both a single-user and network version of the product in the USA and Canada and are now finalising the UK release. 

For AccountEdge customers looking to upgrade their computers, our advice is to delay your Catalina, Big Sur or M1 upgrade until the UK release of the compatible product, or use one of the workaround options provided below.

AccountEdge 2021

March 2021's release of AccountEdge 2021 remains incompatible with Catalina, Big Sur and M1 processors but can still be used under Catalina and Big Sur on computers with Intel processors by using the workarounds provided below.

AccountEdge customers will be able to upgrade to the new compatible version with a separate upgrade in the coming weeks.

As always, we appreciate your patience and loyalty.

The Mamut Team

Using AccountEdge 2021 and ealier on macOS Catalina or Big Sur

AccountEdge 2021 and earlier is not compatible with macOS 10.15 Catalina or 11.0 Big Sur.  If you have already upgraded to Catalina or Big Sur, or if you need to upgrade in the future, we have outlined options to allow you to continue using AccountEdge natively on your Mac.


1. Use Parallels to run AccountEdge for Mac


   •  The Parallels solution does not currently support Apple's new M1 processors.

   •  The Parallels solution is currently only available to computers using Intel processors.

   •  This page will be updated as information becomes available about Parallels' support for M1 processors.


Popular software like Parallels or VMware Fusion allow you to run an earlier version of the macOS alongside Catalina or Big Sur.

Using AccountEdge under Parallels provides a native environment for you to continue using AccountEdge for Mac on macOS Catalina and Big Sur.

Parallels effectively provides you with a second desktop with which to use AccountEdge for Mac in exactly the manner to which you are accustom.



2.  Use a secondary computer

If you have a secondary Mac computer that has yet to be updated to Catalina or Big Sur, you can continue to use AccountEdge on that machine.  AccountEdge will continue to receive payroll tax updates and upgrades in the future.

Click here to view our system requirements and verify if your older Mac will work with your version of AccountEdge.


3.  Downgrade your macOS

On computers that have been upgraded from an earlier macOS, it may be possible to roll back your Catalina or Big Sur installation and return to an earlier macOS.  This option may not be available if your computer came with macOS Catalina or Big Sur pre-installed.

It is recommended that you contact an IT professional for assistance in performing a roll-back to an earlier macOS.


4.  Create a separate partition to install two different macOS versions on the same Mac

It's possible to partition your Mac to install Catalina or Big Sur alongside your current version of macOS, or vice-versa.  This provides the option to 'dual boot' your computer, allowing you to select or another macOS when turning on your computer.

Speak to Apple or your IT administrator for professional advice about partitioning your Mac.


5.  Start your computer from an external hard disk to run an earlier macOS

This option is similar to option 5 but instead of partitioning your existing hard disk, you install a second macOS on an external hard disk, providing the option to 'dual boot' your computer into one or the other macOS.

Speak to Apple or your IT administrator for professional advice about installing macOS on an external hard disk.


More information

You can read more about these options on our support page by clicking here.

As always, if you have questions, don’t hesitate to give us a call 0207 153 0900 or email