Can we switch my subscription from Australia to Singapore without paying another subscription fee?

You need to cancel the QuickBooks Online subscription from Australia and subscribe to a new one in Singapore, Robert. Therefore, a subscription fee is required.

Since there are differences in accounting and tax laws, consider canceling your AU and creating a new account for SG. In doing so, you'll have read-only access to your data for up to a year. Before proceeding, export reports, lists, and other data from QuickBooks Online to keep a copy of them for future use.

Afterward, log in to your QBO AU and then follow the steps below:

1. Go to the Gear icon and select Subscriptions and billing under the Profile column.
2. Click Cancel.
3. Tap Continue to cancel.
   

    

Read about canceling your subscription for other methods, depending on where you purchased it.

Once done, you can Sign in to set up a new SG account using the same credentials by going to this link to pick your region. Bookmark this material to get the most out of your new account: Get started and adjust settings after you sign up for QuickBooks Online.

I’m always available whenever you need further assistance establishing your new company file. Post more questions about the product navigation or tasks here.

@Robert-Liu 

You can also purchase a 3rd party service to convert your data from AU to SG. You can contact @Fiat Lux - ASIA via email directly for assistance.