Hi there, tombay!

Thanks for joining this thread. Let me assist you in adding billable expenses to your invoices.

I've added a screenshot for your reference where you can locate the Add button mentioned by my colleague.

If you still can't find it, you'll want to perform some troubleshooting steps. You'll want to use an incognito window and check it from there. Incognito won't save your browsing history which can result in an error. These are some of the shortcut keys:

• Google Chrome: Ctrl + Shift + N
• Safari 11 or newer: ⌘ + Shift + N
• Mozilla Firefox: Ctrl + Shift + P
• Microsoft Edge: Ctrl + Shift + P  

Also, you'll want to clear the cache and make sure you're using a supported and up-to-date browser. This can help in fixing any browser-related issues.

If what you're seeing on your end is different from the screenshot, you're probably using QuickBooks Desktop. This version has a different process.

When you create an expense or bill transaction, make sure to select a customer from the Customer:Job column, and don't forget to check the Billable tickbox. Then, follow these steps:

1. Go to the Customers menu and select Create Invoices.
2. Select a customer from the Customer:Job drop-down. The Billable Time/Costs window will appear.
3. Choose the Select the outstanding billable time and costs to add to this invoice, then OK.
4. From the Choose Billable Time and Costs, select the billable expense you created, then OK.

Do you need help in balancing your books? Learn the process of reconciliation by clicking this link: Learn the reconcile workflow in QuickBooks.

Leave a comment again here if you have other concerns. Take care!