It's nice to hear from you today, kblack25.
I'd be delighted to help you make a monthly invoice in QuickBooks Online.
I'd be happy to inform that you can easily set up monthly invoices in QuickBooks Online. You'll need to add recurring invoices to get started. Let me guide you how.
Set up the unscheduled invoice template:
Once you set up the unscheduled invoice template, you can follow these steps to use it.
This article is a good reference: https://quickbooks.intuit.com/community/Help-Articles/How-to-set-up-a-recurring-invoice-for-customer....
Let me know if you need anything else or if you have any other questions about monthly invoices in QuickBooks Online. I'm here to help.