Add-on Fee Billing Terms

Use add-on fees to apply an additional charge to an entire invoice section. You can apply additional fees as a percentage of labor, expenses, consultants, fees, units, and/or add-on fee billings, or as an amount that you specify. You can also use the add-on feature to apply a project retainer.

You can apply multiple add-ons to the same category. For example, you may have a markup of 15% for Labor and 10% for Labor and Expenses.

Add-on fees appear after the labor, expense, unit, and fee sections of the invoice.