Where do I go in QBO to change the email address for notifications of payment for QB subscription

Welcome to the Community, @bdoctor670.

I'm here to ensure you're able to change the email address for payment notifications of your QuickBooks Online subscription. I'll be glad to show you how:

1. Click the Gear icon ⚙️ at the top.
2. Choose User Profile.
3. In the Profile tab, click the Edit link in the far right of the Email address section.
4. Hit Done to confirm.

Please see screenshots below for the visual reference of the steps given:

Also, I'll be providing an article on how to edit company settings in QuickBooks Online in case you'll want to update your account information such as company name, address,etc.: How do I update my company information in QuickBooks Online?

You can always come back here in the Community if you need more help. Take care and have a great day, @bdoctor670.