How to Invoice for Mileage and Expense Reimbursements

1. Expense Invoicing Basics

When a client agrees to reimburse you for project expenses (travel, software, assets), list them as separate line items on your invoice.

2. Billing for Mileage

Use the standard IRS mileage rate (or regional equivalents). List total miles driven, the approved rate per mile, and attach route maps.

3. Attaching Receipts

Attach clear photos of all expense receipts to the invoice. This is critical for client auditing and your tax record documentation.