Definition
A change order is a documented agreement to modify the original scope of work, including the effect on price and timeline. It is approved by the client before the extra work begins and is then billed on its own invoice or as a clearly labeled line item referencing the change.
Also called: Variation order, Change request
Change order in practice
Change orders turn scope creep into paid work. Even a short email that states the change, the cost, and the client's approval is enough to support the invoice later.
Frequently Asked Questions
Can I invoice extra work without a change order?
You can, but the client may dispute it. Getting written approval first, even informally, makes the additional invoice much easier to collect.