Free Change Order Generator for Contractors
Document scope changes, unforeseen site conditions, additions, and credits after an estimate or project starts. Generate printable change orders with revised contract totals and sign-off blocks — then convert to invoice in 1 click.
Keep Construction & Trade Projects Profitable
Protect your margins and prevent out-of-scope work disputes with clear, professional change orders.
Additions & Credits
Categorize charges by labor, materials, equipment, or subcontractor fees, and deduct credits for omitted work.
Schedule Impact Tracking
Document extra working days required and revised completion dates so customers understand project timelines.
1-Click Convert to Invoice
Instantly transfer approved change order items into an invoice when work is finished.
What is a Construction & Trade Change Order?
A change order is a written amendment to an existing construction contract, estimate, or work agreement. It details changes in project scope, materials, pricing, or schedule that arise after the initial agreement is signed. Whether a customer requests high-end upgrades or a plumber encounters rotted subflooring, a change order ensures both parties agree on cost and timeline adjustments before additional work begins.
What to Include in a Change Order
- Original contract and estimate reference numbers
- Reason for the change (e.g., customer request, site condition)
- Detailed description of added or omitted work
- Itemized breakdown of labor, material, and equipment costs
- Net change value and revised total contract price
- Impact on overall project timeline and completion date
- Printable signature blocks for customer and contractor
Best Practices for Contractors
Always issue a change order before performing additional unbudgeted work. Verbal agreements often lead to payment disputes at invoicing. Requirements and enforceability can vary by contract and jurisdiction, so establishing a standard change order workflow protects your cash flow and client relationship.
Invoza Contractor Lifecycle Tools
Frequently Asked Questions
What is a change order and when should a contractor use one?
A change order is an agreement that modifies the original contract scope, pricing, or completion timeline for a project. Contractors use change orders whenever a customer requests extra features, unforeseen site conditions arise, or materials must be substituted after an initial estimate or contract is accepted.
How does a change order differ from an estimate or invoice?
An estimate proposes initial costs before a project begins. A change order modifies an active estimate or contract while work is underway. An invoice is issued after the added or revised work is completed to request payment from the client.
Can I include both additions and credits on a single change order?
Yes! Invoza allows you to itemize added labor or materials alongside credits or deductions for omitted scope. The tool automatically calculates Net Change Value and Revised Contract Amount.
How does the 'Convert to Invoice' feature work?
Clicking 'Create Invoice From Change Order' transfers your business information, customer details, approved line items, credits, and change order reference number directly into Invoza's Invoice Generator so you can bill the client immediately.
Is a change order legally binding?
A change order serves as written authorization between parties regarding scope and price adjustments. Requirements and enforceability can vary by contract, project type, and jurisdiction. Consulting local contract guidelines or legal counsel is recommended for major commercial projects.
Are change order drafts saved on my device?
Yes. Your draft is automatically saved in your browser's local storage so you can close your window and resume editing at any time. Invoza never stores your change orders on external servers.