Adding unbilled expenses to Invoices

To add an Expense to an Invoice you will first need to associate that Expense with a Project. To do this simply select Rebill to Project when adding the Expense as shown below.

To then add your unbilled expenses to an invoice when you first add, or subsequently edit, the invoice you will see a section on the form titled Add Unbilled Time, Expenses and Estimates, and in there a drop-down called Add Unbilled Expenses.

Just select One line per expense and save the invoice to have each expense added as an invoice item.