Hi Faye, thanks for joining the QuickBooks Community
Due to the differences in products it's not possible to switch directly between QuickBooks Self-Employed and QuickBooks Online. However, we've created a guide with steps to take to make sure you can keep hold of your data.
Once cancelled, you'll be able to access QuickBooks Self-Employed through to the end of your billing period. We'll keep your data for one year after, should you need to re-subscribe to access this.
If you need any guidance on cancelling or creating a new subscription, get back to us below!