If you're on QBO Essentials, Plus, or Advanced plan, you can purge your QBO company to remove everything you've entered and start again. Please follow these steps:
Log in to your QuickBooks Online account.
Replace the /homepage in the URL with /purgecompany and hit Enter.
From: https://...qbo.intuit.com/app/homepage
To: https://...qbo.intuit.com/app/purgecompany.
To confirm you want to delete your company data, enter Yes.
Select OK, then Wipe data.
If you're on Simple Start, you can't purge, but you can cancel it. Then, just subscribe to a new one using your existing user ID and password. Here's an article for your reference: Create or add another company file to QuickBooks Online.
On the other hand, you can check out our video tutorials to be guided with the QBO interface.
If you need more assistance, just comment below, or start a new thread about a different topic. Enjoy your weekend!
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