How Contractors Should Handle Change Orders to Protect Profit and Get Paid

The Real Problem with Change Orders

If you allow small scope changes without pricing them, you are giving away work.

What starts as a quick adjustment becomes extra labor, materials, and time that were never included in the original price. These changes rarely stay small.

This creates a common pattern:

That difference comes out of your profit.

If this happens repeatedly, the job can look successful while the margin disappears.

Doing extra work without getting paid for it is one of the fastest ways contractors lose money.

• The job expands.
• The crew does more work.
• The price stays the same.

What a Change Order Actually Is

A change order is a formal update to the job.

It documents a change in scope, cost, and timeline.

It is not optional paperwork. It is part of the contract.

Every change order should clearly define:

If it is not documented and approved, it is not part of the agreement.

• What work is changing.
• How it affects price.
• How it affects the schedule.

The Correct Change Order Process

Change orders require discipline. Follow the same process every time.

As soon as scope changes, stop and define it. Be specific about what is added, removed, or modified.

Explain how the change affects labor, materials, and timeline. Do not leave this vague.

Calculate cost the same way you price the original job using labor, materials, overhead, and profit.

Do not guess or round.

Create a clear change order that includes scope, price, and timing.

Do not perform the work until the client has approved it in writing.

Once approved, track costs and revenue tied to the change order separately.

Skipping any of these steps is how profit disappears.

• Identify the change clearly
• Describe the impact
• Price the change
• Document it in writing
• Get approval before proceeding
• Track it as part of the job

Pricing Change Orders Correctly

Change orders must be priced exactly like the original job.

That means including:

A common mistake is underpricing because the work feels small or urgent.

If the work costs $1,000 to complete, the price must cover that cost plus overhead and profit.

Doing extra work as a favor is not neutral. It reduces your margin.

Additional labor: 10 hours = $500

Materials: $800

Equipment: $100

Total cost: $1,400

Correct price with overhead and profit: about $1,700 to $1,900

If you charge only the raw cost, you are losing money.

• Labor using actual hours times loaded rate.
• Materials including waste and delivery.
• Equipment or subcontractors.
• Overhead.
• Profit.

The Approval Problem

A change order is only valid when it is approved.

Verbal approval is not enough.

Go ahead is not approval.

Approval means the scope is clear, the price is agreed to, and the client has signed or formally accepted it.

If you do the work before approval, you are taking on the risk.

There is a difference between the customer requesting work and the customer approving the cost.

If those are not aligned, payment becomes uncertain.

Rule: no signed approval, no work.

Documentation Requirements

Documentation protects you when memory fails or disputes arise.

Every change order should include:

If it is not documented, it does not exist.

Weak documentation leads to disputes, delayed payments, and reduced leverage.

Keep records organized and attached to the job.

Use consistent forms or systems so nothing is missed.

• Clear scope description.
• Itemized pricing.
• Schedule impact.
• Written approval.

How Change Orders Affect Job Costing

Change orders must be tracked as part of the job.

Each approved change should be treated like a mini-job.

This means:

If you do not track change orders properly, job costs appear lower than they actually are and profit appears higher than it actually is.

Over time, this creates false confidence in your pricing.

Accurate job costing depends on accurate change order tracking.

• Add the revenue to the job total.
• Track the costs tied to that change.
• Update your job budget.

Common Change Order Mistakes

Doing work without approval. You risk not getting paid.

Underpricing the change. You complete the work but lose margin.

Bundling changes at the end. Surprises create resistance and disputes.

Poor documentation. You cannot prove what was agreed to.

Letting small changes accumulate. Multiple small changes turn into large losses.

Treating change orders as informal. If the process is loose, the outcome is unpredictable.

End-to-End Example

Original job: contract price is $20,000.

Scope change: client requests an additional cabinet not included in the original plan.

Correct process: define the change clearly, calculate labor, materials, and time, price the change at $1,650, get written approval, and complete the work.

Final contract value: $21,650. Profit is preserved.

Incorrect process: work is completed without pricing or approval, cost of work is $1,400, and the client disputes the additional charge.

Outcome: payment is reduced or denied, and profit is lost.

The difference is not the work. It is the process.

Simple Rules Contractors Can Follow

No signed approval, no work.

Price every change fully.

Treat small changes seriously.

If it is not documented, it does not exist.

Communicate changes immediately.

Follow the same process every time.

When to Get Help

If change orders are creating problems, bring in help.

You should get help if disputes are common, clients resist paying for changes, documentation is inconsistent, or profit is being lost on extra work.

An attorney can help with contract structure and enforcement.

A consultant or advisor can help standardize your process.

An accountant can ensure change orders are reflected correctly in your numbers.

They do not fix the work itself. They fix how it is handled and recorded.

Final Position

Change orders are not optional.

They are how you get paid for work that was not in the original scope.

If you define changes clearly, price them correctly, get approval before work, and document everything, you protect your profit.

If you do not, you are doing extra work without guaranteed payment.

That is the difference.