Construction Intelligence Brief

How Change Orders Affect Project Economics

Change orders add scope and, if handled well, margin. Handled poorly, they add cost that is never billed and fights that are never won.

1. The business problem

Are we being paid for the extra work we do?

Changes are part of construction. The danger is doing the work before the change is priced and approved, or approving it at a price that does not cover its full cost, including the impact on the rest of the job.

Because change orders touch both revenue and cost, a contractor can look busy and growing while quietly giving away margin.

2. What the evidence can reveal

Understanding change-order economics requires linking changes to cost:

  • Calculated Value of approved, pending and unapproved changes, and the age of each.
  • Calculated Cost of the extra work, including labor, materials, subcontractors and indirect impacts.
  • Calculated Margin on change orders compared with the base contract.
  • Information gap Contract terms on notice, pricing and approval, and the history of disputes.

Unrecovered change cost is hard to see in totals because it hides inside normal job cost.

3. Investigate the problem

In the synthetic contractor, the scenario input for revenue recovery stands in for pricing and change orders. Calculated A 1% improvement in revenue per unit of work, for example by recovering more change-order value, adds about $515K to annual gross profit, about 18% of the $2.90M earned. That is far more than a 1% change in volume at about $65K or in any single cost at about $146K to $164K.

Calculated The portfolio shows the pattern the scenario warns about. Revenue recognized grew 12.0% but job costs grew 15.4%, and several projects, including Maple Street Apartments and Harbor Logistics Warehouse, lost estimated margin. Hypothesis Unrecovered extra work is one possible cause, though the data cannot separate it from price and productivity effects.

Information gap The demo does not include a change-order log. In practice, the first step is a list of every change, its status, its value and its cost to date. Even a simple age report of unapproved changes tends to show money that is at risk.

4. Explore the interactive experience

Investigate it yourself.

Project Performance Dashboard: a project portfolio dashboard with estimated final margins, a scenario simulator for change orders and costs, evidence-linked answers from APIS, and a sample brief, all on synthetic data.

The experience below is built on a synthetic contractor, “Demo Builders Inc.” Nothing in it is real, so you can explore freely.

  1. In the Scenario tab, the preset raises price and change-order recovery by 2%. Note the effect on gross profit.
  2. Reset and lower labor cost per hour by 2%. Which is larger?
  3. Ask APIS how change orders affect margin.

5. Evaluate possible solutions

Better change-order discipline is mostly process.

Price before performing

When it may fit: Work often starts before approval.

Evidence needed: Pricing templates and notice rules.

Trade-off: Can slow the field and irritate owners.

Include indirect and impact costs

When it may fit: Pricing covers only direct cost.

Evidence needed: Delay and productivity impact methods.

Trade-off: Owners may dispute.

Age and escalate unapproved changes

When it may fit: Pending changes pile up.

Evidence needed: A change log with dates and status.

Trade-off: Takes administration.

Review contract terms before signing

When it may fit: Terms limit recovery.

Evidence needed: Contract language and precedents.

Trade-off: May cost bids.

6. What leadership should do next

Questions to answer

  • How much extra work is unapproved?
  • What is the margin on changes?
  • How old are pending changes?
  • Do contracts allow full recovery?

Data to gather

  • Change order log
  • Cost to date on changes
  • Contract terms
  • Correspondence

Steps to take

  1. Build the change log.
  2. Age and price each item.
  3. Follow up on the oldest.
  4. Report monthly.

7. Engage Two Pillars

Improve Project Visibility and Financial Control

Two Pillars can help contractors investigate project portfolio, margin, estimating, cash-flow and operational performance using your own project data. A good first step is a change-order recovery review that finds extra work not yet priced or billed.

Sources and data notes

  • The organization, its figures, and every number in this article and its interactive experience are synthetic and illustrative. They are not real data, a benchmark, or a forecast.
  • Reviewed October 2026. This article describes an approach to investigation. It does not replace review by qualified professionals.