Hello there, @mn-solutions.
I'd be glad to help you today so you'll be able to add the billable expenses to your recurring invoice.
When the recurring invoice was already created, you can just open that invoice and add the billable expense/s from there.
You can see attached screenshots for additional reference.
In case you have any other QuickBooks concerns in the future, you can check our self-help articles: Help articles for QuickBooks Online.
I'll be always here to help you if you have any other questions about billable expenses, just add a comment below. Have a great day ahead!
Thanks for your quick response and trying the steps above, mn-solutions.
In QuickBooks Online (QBO), we can add a billable expense once a recurring invoice has been created. You also need to create the billable expense first, so QBO will prompt you to add them on the invoice (the little arrow on the right part of the transaction). Let me guide you on this.
To turn on the billable expense feature:
To create billable expense:
To add the billable expense on an invoice:
Visit these articles for more insights:
In case you need tips and related articles in the future, visit our QuickBooks Community help website for reference: QBO Self-help.
This information should help you get pointed in the right direction.
Let me know how it goes after performing the steps above. I'll jump right back in to assist if you need anything else. Best regards.