Good evening, @christy20657. 

Helping you figure out how to add billable expenses in your QuickBooks Desktop for Mac is my priority. 

If you tried the steps from this article and they didn't work, I recommend contacting our Customer Support Team. They'll be able to use a more advanced tool to help walk you through some more steps.

All you need to do is follow the on-screen instructions through this link to get in touch with them. 

Please let me know if you have any other questions. I'm always here to help and provide you additional assistance. Have a wonderful day!