Every project has a moment where the client says, "Oh, while you're at it, could you also…" It sounds small. It usually is not. And if you say "sure" and just do it, you have quietly agreed to work for free, pushed your schedule back, and taught the client that the scope is a suggestion.
A change order is the fix. It is a short document that turns "could you also" into agreed, paid work. Used well, it does not make you look difficult. It makes you look professional.
What a Change Order Is
A change order is a written amendment to your original agreement. It says exactly what is changing, what that does to the price and the timeline, and both of you sign it before the new work starts.
It only works if you have something to change from. If your original agreement does not clearly say what is included, every request becomes an argument about whether it was "always part of the job." That is why change orders start with a good scope of work.
When You Need One
Use a change order any time the work, the price, or the deadline is going to be different from what you agreed to. Common examples:
- The client wants more. Extra pages, more revisions, another location, additional features.
- The client wants less. Removing work matters too. It may change the price, and you want it on record.
- The client changes direction. New materials, a new design, a new deadline.
- You find something nobody knew about. Hidden damage, missing information, a system that does not work the way everyone thought.
- The client causes a delay. Late approvals or late materials that push the schedule.
What Goes in a Change Order
- Who and what. Both parties' names and a reference to the original agreement by name and date.
- A change order number and date. Number them in order: 1, 2, 3. It keeps the history clear.
- The change, in plain words. What is being added, removed or changed. Specific enough that a stranger would understand it.
- Price effect. The amount added or subtracted, and the new total.
- Schedule effect. How many days the deadline moves, or "no change."
- Payment terms for the new amount, if different from the original.
- A "everything else stays the same" line. So nobody reads the change order as replacing the whole agreement.
- Signatures and dates from both sides.
A Change Order Template
CHANGE ORDER #[number]
Date: [date]
Project: [project name] Original agreement: [agreement name], dated [date]
Between: [your business name] and [client name]
Requested by: [client / provider]
Description of change: [What is being added, removed or changed. Be specific.]
Reason for change: [Client request / unforeseen condition / other]
Price: Original contract amount: [amount]. Previous change orders: [amount]. This change order: [+/− amount]. New contract total: [amount].
Schedule: [Completion date moves from [date] to [date] / No change]
Payment for this change: [When and how the change amount is paid]
All other terms of the original agreement remain unchanged. Work on this change begins after both parties sign.
[Your business name] — Signature: ________ Name: [ ] Date: [ ]
[Client name] — Signature: ________ Name: [ ] Date: [ ]
How to Bring It Up Without Awkwardness
The hard part is not the form. It is the conversation. Keep it friendly, short and matter-of-fact. You are not saying no. You are saying yes, here is what it takes.
"Happy to do that. It's outside what we agreed to in the original scope, so I'll send over a quick change order with the cost and how it affects the timeline. Once you sign it, I'll get started."
Say it the first time it happens, every time. If you let the first two requests slide, the third one becomes a fight, because now you are changing the rules. If you make change orders normal from day one, nobody takes them personally.
It helps to mention change orders before the project even begins. One line in your proposal or contract, such as "Changes to the scope are handled by a written change order before work begins," sets the expectation. Our proposal guide covers where that line fits.
Pricing the Change
Price a change the same way you priced the original work: your time, materials, and anything the change disrupts. Remember the hidden costs. A change in the middle of a project often means redoing work already finished, rescheduling other jobs, or extra project management. If those are real, they belong in the price.
If you cannot price it yet, because you need to investigate first, say so. Write a change order for the investigation, then a second one for the work.
Keep the Record Clean
- Keep every signed change order with the original agreement, in order.
- Update your running contract total each time.
- Show change orders as separate lines on your invoices so the client can match them up.
- If something is approved by email in an emergency, follow up with the signed form as soon as you can.
Check Your Contract First
Some contracts say exactly how changes must be requested and approved, and some industries, construction especially, have state rules about written changes. Read your own contract's change clause, and if you do not have one, add one. Our contract templates guide is a good place to start. For anything high-stakes, have an attorney in your state review your contract and your change order form.
Questions people ask
What is a change order?
A change order is a short written agreement, signed by both sides, that changes the original agreement. It spells out what is being added, removed or changed, what that does to the price and the schedule, and it is signed before the new work begins.
When do you need a change order?
Any time the work, the price, or the deadline is going to be different from what the original contract or scope of work says. That includes the client asking for more, the client asking for less, and conditions you could not have known about when you agreed to the job.
What should be included in a change order?
A reference to the original agreement, a change order number and date, a description of the change, the effect on price, the effect on the schedule, any change to payment terms, a line saying the rest of the agreement stays the same, and signatures from both sides.
Can I start the extra work before the change order is signed?
You can, but it is risky. Once the work is done you have lost your leverage, and a verbal yes is easy to forget or dispute. If something is truly urgent, at least get the approval in writing by email, then follow up with the signed form.
Is a change order legally binding?
It is generally treated as an amendment to your contract, so it is only as solid as the contract itself and how it was agreed to. Some contracts say exactly how changes must be made, and some industries, like construction, have state rules. Have an attorney in your state review your contract and change order form.
This article is general guidance on business documents, not legal, tax or accounting advice. A template is a starting point, not a document drafted for your situation. Before you sign, send or rely on anything with legal or financial consequences, have it reviewed by an attorney or accountant licensed in your state.