Hi there, @PeliStudio.

I'm here to help ensure you can edit the billing addresses in your invoices in QuickBooks Online (QBO).

I tried replicating this on my test account, and I was able to edit the billing address. Are you getting any error messages when doing it in your account? Any additional information will help me provide the best resolution for your concern.

In the meantime, let's sign in to your QBO using a private browser (incognito). There are times that the browser is already full of frequently accessed page resources (cache and cookies), causing some unusual responses.

Here's how:

• Press Ctrl + Shift + N (Google Chrome).
• Ctrl + Shift + P (Firefox).
• Control + Option + P (Safari).

Once logged in, try creating a test invoice and edit the billing address to double-check.

If it's successful, return to your default browser and perform a clear cache to refresh the system. However, if the issue persists, try using other supported browsers.

I'll also add this article that tackles managing invoices in QBO: Create invoices in QuickBooks Online.

For more tips and other resources, you can visit our website for future reference: Self-help articles.

Please let me know if you have more questions about invoices or anything else QuickBooks. I'll be more than willing to help. Stay safe.