How to prepare your invoice
1. Reference the engagement
Mention the relevant project, statement of work or approved milestone in the description.
2. Break down your fees
Show billable hours and agreed rates, or a fixed fee for each completed milestone.
3. Separate expenses
If you are billing reimbursable expenses, itemize them and keep supporting receipts.
4. Confirm terms
Provide the invoice number, issue date, payment due date and any purchase-order reference.
Example line items
These sample amounts are illustrative. Replace them with your own contract details and pricing.
| Description | Quantity / basis | Amount |
|---|---|---|
| Strategy workshop | 4 hours × $100 | $400 |
| Implementation roadmap | 1 milestone | $650 |
Common questions
Should consulting invoices be hourly or fixed price?
Either can work. Use the billing basis set out in your consulting agreement.
Do I need to include a purchase order?
If the client supplied a purchase order or reference code, include it to help their accounts team process payment.
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