Change invoice template
Change invoice template is used to bill for revisions, scope changes, or variations to an original agreement—common in design, consulting, and project-based work. It should reference the original project or contract, describe the change, show the additional (or reduced) amount, and state payment terms. Sending a dedicated change invoice keeps a clear audit trail and avoids disputes over what was approved and what is due.

Change invoice template Sample
Change invoice template
123 Business Street, City, Country
Phone: (123) 456-7890
Email: contact@company.com
Change invoice template
Bill To:
Client Name
Client Address
Client City, Country
Phone: (987) 654-3210
Email: client@example.com
Invoice #: 12345
Date: 2024-10-10
Due Date: 2024-11-10
| Item | Description | Qty | Price | Total |
|---|---|---|---|---|
| Service A | Itemized service or product | 1 | $100.00 | $100.00 |
| Service B | Additional line item | 2 | $50.00 | $100.00 |
| Subtotal | $200.00 | |||
| Tax (10%) | $20.00 | |||
| Total Due | $220.00 | |||
An invoice should include your business or name, the customer’s details, the date and invoice number, and a line-by-line breakdown of what was provided. Including payment terms—such as due on receipt, Net 15, or Net 30—helps you get paid on time and keeps records clear for taxes.
Supporting resources
| Resource | Type | Description |
|---|---|---|
| Billing for changes | Industry guide | Bill change work as separate line items or a separate invoice; reference approved change or revision number and attach supporting detail. |
| Change invoice checklist | Checklist | Original project/contract reference, description of change, quantity and rate or lump sum, subtotal, tax if applicable, total, payment terms; get written approval before or with invoice. |
| Tracking and audit trail | Industry guide | Dedicated change invoices or line items with change numbers reduce unbilled work and disputes; integrate with project or job costing where possible. |
Frequently Asked Questions
- What is a change invoice?
- An invoice that bills for additional or revised work outside the original scope—e.g. design revisions, extra features, or scope creep—so the client pays only for approved changes.
- Should I use a separate invoice for changes?
- A separate change invoice (or clearly labeled section) with a reference to the approved change helps with tracking, disputes, and accounting for both you and the client.
- What should a change invoice include?
- Reference to original project/contract, clear description of the change, amount (additional or credit), and payment terms; attach or cite the approved change request if you have one.