The option to purge company data is only available for QuickBooks Essentials, Plus, and Advanced users with less than 60 days old worth of data. If you’re on Simple Start, and need to start over, you will need to cancel your account and sign-up to start a new company.
Step 1: Cancel your current account
Go to Settings⚙ and select Account and Settings.
Select the Billing and subscription tab.
Select Cancel subscription.
Follow the steps to cancel your account. If you use payroll, you should cancel your payroll account too.