Change Order Template

One page, signed before the work happens: what is changing, why, what it costs, how many days it adds, and what the contract total becomes. Copy it, download it, or keep it open on a phone at the job site.

Last reviewed 9 Sept 2026

Free to use. No email, no sign-up. Paste it into Word, Google Docs or an email and replace anything in [BRACKETS].

Change Order

Header

Change order number: [CO-001]
Number them in sequence. Gaps invite questions later.
Date: [DATE]
Project: [PROJECT NAME / ADDRESS]
Owner: [OWNER NAME]
Contractor: [CONTRACTOR NAME]
Original contract dated: [DATE]

Description of change

Describe the new work the way you would describe it to someone who has never seen the job. Include location, quantity and materials.

[DESCRIBE THE WORK BEING ADDED, REMOVED OR SUBSTITUTED. BE SPECIFIC ABOUT LOCATION, QUANTITY, MATERIAL AND FINISH.]

Work removed from the original scope, if any:
[DESCRIBE ANY WORK NO LONGER BEING PERFORMED]

Reason for change

Tick one. The reason usually decides who pays.

[ ] Owner request / selection change
[ ] Concealed or unforeseen condition discovered after opening up the work
[ ] Code requirement or inspector direction
[ ] Design change or drawing conflict
[ ] Material unavailable — substitution required
[ ] Error or omission in the original scope
[ ] Other: [DESCRIBE]

Cost impact

ItemQuantity / unitUnit priceAmount
Materials[QTY UNIT]$[0.00]$[0.00]
Labor[HOURS]$[0.00]/hr$[0.00]
Subcontractor[TRADE]$[0.00]
Equipment / disposal$[0.00]
Overhead and profit[__]%$[0.00]
Credit for deleted work-$[0.00]
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Schedule impact

The line everybody forgets. Write a number, even if the number is zero.

Additional calendar days required: [0 DAYS]
Reason for the added time: [LEAD TIME / EXTRA TRADE DAYS / INSPECTION]
Revised substantial completion date: [DATE]

Revised contract total

Original contract sum: [$0.00]
Net change by previously authorised change orders: [$0.00]
Contract sum before this change order: [$0.00]
Amount of this change order: [$0.00]
NEW CONTRACT SUM: [$0.00]

Payment for this change order

Due on signing: [$0.00]
Due on completion of this change: [$0.00]
Added to next scheduled progress payment: [$0.00]

Authorisation

This change order becomes part of the contract identified above. All other terms and conditions of that contract remain unchanged. The work described here is not authorised, and will not be performed, until both parties have signed below.

Owner signature: ___________________________  Date: ____________
Printed name: [OWNER NAME]

Contractor signature: ______________________  Date: ____________
Printed name: [CONTRACTOR NAME]

Free to use. No email, no sign-up. Paste it into Word, Google Docs or an email and replace anything in [BRACKETS].

How to use this template

Verbal change orders are how good jobs go bad

Nobody sets out to have a dispute. It starts with a conversation in a hallway. The owner asks whether the sconces could move over a foot; the contractor says sure, no problem. Neither of them is lying about what happened, and six weeks later they remember it completely differently: one heard "no problem" as "no charge", the other meant "not technically difficult".

Multiply that by the fifteen small conversations a remodel produces and the final invoice arrives with several thousand dollars nobody agreed to in writing. That is where the relationship breaks — not over the work, over the surprise.

The fix is unglamorous. Anything that changes the scope, the price or the schedule gets one page and two signatures before it is built. It takes ten minutes. Not doing it is the most expensive ten minutes saved in the trade.

The schedule impact line is the one people forget

Every change order form has a cost box, and everyone fills it in. The days box is left blank, or filled with a hopeful zero.

Then the job runs three weeks long, and there is a real argument about whether the contractor is late. They are not — the owner added a shower niche, moved two walls and changed the tile to a herringbone layout, and each of those cost days. But none of it is written anywhere, so all the schedule pressure lands on the contractor, and the owner genuinely believes they are being stalled.

Write the days. If a change adds no time, write "0 days" — that is a statement, and a blank is not. If a change adds time only because a material has a six-week lead time, say that on the line. It protects the contractor from a delay claim and it stops the owner from being blindsided by a moving completion date.

A change order signed after the work is done is not a change order

It is a negotiation, and it is a negotiation the contractor is likely to lose.

Once the work is built, the owner's options are to pay or to argue, and arguing is now cheap for them. The leverage that existed before the work — "if you do not want to pay for it, we will not build it" — is gone. Meanwhile the contractor has spent the material and the labour. In several states, retroactive change orders on residential work are also unenforceable or restricted, so the paperwork may not even be worth what it cost to write.

Stop the crew. Write the order. Get the signature. A photo of a signed page on a phone is enough for the moment; formalise it that evening. Emailing the form and getting "approved" typed back is fine in most jurisdictions if the email chain is preserved — the point is a contemporaneous written record, not a notarised document.

The one real exception is an emergency: an open wall, active water, an unsafe condition. Do what needs doing to make it safe, photograph everything, and write the change order the same day.

Unforeseen conditions, and who pays for them

The reason box exists because it usually decides that question.

An owner asking for better tile is plainly the owner's cost. A structural post that turns out to be rotted is nobody's fault, and a well-written contract has already said whose risk it is — usually the owner's, which is exactly why the estimate excluded concealed damage. An error in the contractor's own take-off is generally the contractor's problem.

Recording the reason at the time keeps that conversation factual. Six months later, "we found rot in the sill plate under the bay window, photos attached" carries far more weight than a recollection.

Keep the running total on every page

The last section of this form exists because clients lose track. Change order number seven for $1,400 sounds small on its own; what matters is that the contract has quietly moved from $58,000 to $71,300.

Restating the original sum, the previous changes, this change and the new total on every single change order means neither party is ever surprised by the final invoice. Owners who see that running number tend to make better decisions about the next change, which is good for everyone.

Frequently asked questions

What is a change order in construction?
A written amendment to the contract that adds, removes or modifies work, and states the effect on price and schedule. Once both parties sign, it becomes part of the contract.
Does a change order have to be in writing?
Most construction contracts require it, and several states require written change orders on residential work. Even where a verbal change is technically enforceable, proving its terms is close to impossible.
Can a contractor charge for a change order without approval?
Generally no. Unauthorised extra work is usually unrecoverable, and in some states billing for it on a residential job is a licensing violation. The exception is emergency work needed to make the site safe.
How much markup can a contractor add to a change order?
Whatever the contract says. Ten to twenty percent overhead and profit is typical, and it should match the rate used in the original estimate. A markup that suddenly doubles on extras is a fair thing to question.
Can I refuse to sign a change order?
Yes, and then the work is not performed. If the change is driven by code or a genuine unforeseen condition, refusing may leave the job unable to proceed — that is a conversation to have before it becomes a standoff.
Do change orders extend the completion date?
Only if the change order says so. That is precisely why the schedule impact line is on the form, and why it should never be left blank.