We need to clear all data and enter new entry how we can do it

If your QuickBooks Online data is less than 60 days, you have the option to purge your account if you're using QuickBooks Online Essentials or Plus. The system deletes all data entered into the company, and you're unable to restore them.

To purge the data, follow the steps listed below:

Log in to your QuickBooks Online account.
Change the URL to include /purgecompany.
Example: URL shows https://...qbo.intuit.com/app/homepage, change to: https://...qbo.intuit.com/app/purgecompany.
The next screen will provide a summary of the items to be deleted.
Type the word “YES” once the data gets deleted, then click OK.
Click Wipe Data once your selections are complete.
Once the deletion is complete, you will be rerouted to your home page.

However, if it's more than 60 days old, you need to cancel your account and start a new subscription.

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Hi there, @ismail3. 

Thanks for visiting the Community. I can share insights about clearing data in QuickBooks Online. 

If your company is less than 60 days, you can purge your account so the system will wipe out all data entered so you can start over. Please note that you're unable to restore them once deleted.

To purge the data, follow the steps listed below:

1. Log in to your QuickBooks Online account.
2. Change the URL to include /purgecompany.
3. Example: URL shows https://...qbo.intuit.com/app/homepage, change to: https://...qbo.intuit.com/app/purgecompany.
4. The next screen will provide a summary of the items to be deleted.
5. Type the word “YES” once the data gets deleted, then click OK.
6. Click Wipe Data once your selections are complete.
7. Once the deletion is complete, you will be rerouted to your home page.

However, if it's more than 60 days old, you need to cancel your account and start a new subscription.

To cancel your account:

1. Go to Gear icon and select Account and Settings under Your Company.
2. Select the Billing and subscription tab.
3. In the QuickBooks section, select Cancel.
4. Follow the steps to cancel your account. If you use payroll, you should cancel your payroll account too.

To start a new account:

1. Go to https://quickbooks.intuit.com/choose-country/.
2. Fill up the User ID and password.
3. You can use the same user ID and a password you previously had. If you activated payroll in the account, this is the best option for you.

For more information about this process, check out this article: Delete your data and start over in QuickBooks Online. 

For future reference, read through these articles to learn more about managing your subscription and data in Quickbooks Online: 

• Create a new company and add subscriptions.
• Move your lists to QuickBooks Online

I'll be here to help you more if you have more concerns about purging your company file. Take care.