Construction Change Order Form: What Goes In It (Free Template)

By Dave Daugherty, Principal at SB360  |  Updated: August 2026

Why the Form Itself Matters

A change order can be verbally agreed to in thirty seconds on a job site. That's exactly the problem. Nothing about a verbal agreement protects you if the client later disputes the cost, claims it was part of the original scope, or simply forgets what was said.

The form is what turns a conversation into a contract. If you want the full process — from identifying a change to collecting payment for it — see our guide on how to manage change orders in construction. This page is just about the document itself: the exact fields it needs, and a template you can start using today.

The Fields Every Change Order Form Needs

Leave any of these out, and the form is weaker than it should be — either as a business record or as legal protection if the change is ever disputed.

• Unique change order number — every CO on a project should be numbered sequentially so you can track the running total against the original contract.
• Date of issue — establishes exactly when the change was proposed, separate from when it was approved.
• Project name and address — obvious, but easy to skip on a fast-moving job with multiple projects running at once.
• Original contract reference number — ties the change order back to the base agreement it's modifying.
• Detailed description of the scope change — "additional electrical work" is not a description. Be specific about what's being added, removed, or altered.
• Reason for the change — owner request, unforeseen site condition, or design revision. This matters if a dispute ever escalates to mediation or arbitration.
• Itemized cost breakdown — labor, materials, equipment, and markup, broken out separately rather than one lump sum.
• Schedule impact — additional days and a revised completion date, even if the honest answer is zero days.
• Approval deadline — a specific date the owner needs to respond by, so the crew isn't left waiting indefinitely.
• Signature lines for both parties — a change order isn't executed until both the contractor and the owner have signed it.

Here's what that looks like filled out on a real change order:

Fields That Aren't Required, But Help

These aren't legally necessary on every change order, but they close gaps that cause disputes later:

• A statement that work will not begin until written approval is received
• A clause stating that verbal approval is not binding
• The updated total contract value after the change is applied
• Payment terms specific to this change order (due on next draw, at completion, or immediately)

Download the Free Template

We put every field above into a single, ready-to-use change order form. Enter your name and email and we'll send it straight to your inbox.

How to Actually Use It on a Job

A template only protects you if it's actually used every time a scope changes — not just on the big ones. Print a few blank copies and keep them in the truck, or better, fill it out digitally the moment a change comes up so nothing gets lost between the jobsite conversation and the paperwork.

If you're managing more than a couple of change orders per project, a spreadsheet or paper form starts to break down fast — there's no running total against the contract, no automatic numbering, and nothing stopping a change from slipping through undocumented. That's exactly the gap a dedicated change order process closes, and it's why Smart Builder 360 builds change order tracking directly into the estimator rather than as a separate document.

Frequently Asked Questions

What should a construction change order form include?

A unique change order number, date of issue, project name and address, the original contract reference number, a detailed description of the scope change, the reason for the change, an itemized cost breakdown, the schedule impact, an approval deadline, and signature lines for both the contractor and the owner.

Is a change order form legally binding?

Yes, once it is signed by both the contractor and the owner. An unsigned change order, or one where work started on a verbal approval only, weakens your legal position if the change is later disputed.

Can I use the same change order form for every project?

Yes. A single well-built template can be reused across every job — only the project-specific details (contract reference, description, cost, and signatures) change each time.

What's the difference between a change order form and a change order request?

A change order request is the initial ask before pricing and approval. The change order form is the final, signed document that makes the change official — it should only be executed once both parties agree on cost and schedule impact.

The Bottom Line

The form itself isn't the hard part — it's using it consistently, on every change, no matter how small. Download the template above, keep it in front of you on every job, and pair it with a real process using our guide on how to manage change orders in construction.

Let's build smarter, together.