We can go to the Billing and Subscription tab and click View Payment History to access your monthly billing invoices in QuickBooks Online (QBO), Preetkanglicsw.
It will display the last six (6) months of your bills. Here's a screenshot for your visual guide.

From there, you will see a list of your invoices, which you can print as PDF or CSV.
If you want to request a copy of your older payment history, I recommend reaching out to our Live Support team. They have the tools that can securely provide you with the necessary information.
You can refer to this article to learn more about your billing information: Manage billing, payment, and subscription information.
I'm adding these articles for your future guide in case you need to make changes to your account:
Feel welcome to reach out to us again with any concerns or questions you may have. We'll always have your back.