How to bill printing costs alongside billable hours

Hi all,

We manage a variety of project through JIRA and some of them have additional costs alongside billable hours, such as printing. Currently, we are tagging our accountant in the comments of an issue and then stating the amount for printing to be billed, but the hours are being pulled separately, so the clients are receiving 2 invoices, one for printing and one for billable hours. Is it possible to consolidate these billable items in a better way?

Thank you for your feedback.