How Should Contractors Account for Change Orders?
Construction change orders can affect contract price, estimated costs, gross margin, billing, WIP, and revenue recognition.
The accounting depends on the facts.
Contractors should evaluate factors including:
whether the change has been approved;
whether the scope is clearly defined;
whether the price has been agreed;
whether collection is probable;
what additional costs are expected; and
how the change modifies the existing contract.
The most important principle is simple:
A change order should not be treated as additional profit merely because the contractor expects additional revenue.
Both the revenue and the related cost need to be understood.
What Is a Change Order?
A change order modifies the original construction contract.
It may change:
scope;
contract price;
project schedule;
materials;
specifications;
quantities;
labor requirements; or
other contractual terms.
Change orders may arise from:
owner requests;
design changes;
unforeseen conditions;
errors or omissions;
schedule changes;
material substitutions;
regulatory requirements; or
other project conditions.
From an accounting perspective, the question becomes how that modification affects the contractor's existing revenue-recognition model.
Why Change Orders Matter to Financial Reporting
A change order can affect several parts of the financial statements simultaneously.
For example, it may increase:
Contract value
and also increase:
Estimated total project cost.
That changes:
expected gross profit;
gross margin;
percentage complete;
earned revenue;
overbilling or underbilling;
backlog; and
future cash flow.
If only the contract value is updated, the WIP schedule may overstate expected profitability.
Start With the Status of the Change Order
Not every change order is in the same stage.
A contractor may have:
Approved Scope and Approved Price
Both parties have agreed to the work and compensation.
Approved Scope but Unresolved Price
The customer agrees additional work is required, but final compensation remains under negotiation.
Work Performed Without Formal Approval
The contractor may have already performed additional work but does not yet have final approval.
Disputed Change
The customer may disagree with:
responsibility;
scope;
price;
entitlement; or
some combination of those issues.
Each situation can lead to a different accounting analysis.
Approved Change Orders Are Usually More Straightforward
Suppose a contractor has:
Original contract: $5,000,000
Approved change order: $500,000
Revised contract value: $5,500,000
If the change order is approved and enforceable, management can evaluate how the modification should be reflected under ASC 606.
But revenue is only half of the analysis.
Suppose the additional work is expected to cost:
$425,000
The change order may add only:
$75,000 of expected gross profit.
Adding $500,000 to contract value while failing to increase estimated total cost by $425,000 would materially overstate project profitability.
Change Orders Should Update Cost to Complete
Every meaningful change order should trigger a review of the cost forecast.
Consider:
Additional contract value: $300,000
Expected additional labor: $100,000
Materials: $75,000
Subcontractors: $50,000
Equipment and supervision: $25,000
Expected incremental cost: $250,000
Expected incremental gross profit: $50,000
The WIP schedule should reflect both sides of the change.
How Does ASC 606 Treat Contract Modifications?
Under ASC 606, a change order may represent a contract modification.
Management generally needs to determine whether the modification:
creates a separate contract;
modifies the existing contract prospectively; or
modifies the accounting for an existing performance obligation through a cumulative catch-up adjustment.
The answer depends on factors such as:
whether additional goods or services are distinct;
whether pricing reflects standalone selling prices; and
whether the remaining work is distinct from work already transferred.
Construction contracts often require judgment because the contractor may be providing one highly integrated performance obligation.
Related Resource: How Does ASC 606 Apply to Construction Contractors? →
When Might a Change Order Be a Separate Contract?
A contract modification may sometimes be accounted for separately when:
it adds distinct goods or services; and
the additional price reflects their standalone selling prices, adjusted as appropriate for the circumstances.
In construction, many modifications do not meet that fact pattern because the additional work is integrated into the existing project.
The specific contract and scope matter.
When Can a Modification Affect the Existing Performance Obligation?
If the changed work is not distinct from the work already being performed, the modification may become part of the existing performance obligation.
For a project recognized over time, this can affect:
transaction price;
estimated cost;
percentage complete; and
cumulative revenue recognized.
That can create an adjustment in the current reporting period.
What Is a Cumulative Catch-Up Adjustment?
Suppose the modification changes the transaction price or estimated project economics for a performance obligation that has already been partially satisfied.
The contractor may need to recalculate cumulative revenue based on the updated information.
For example:
Original contract value: $4 million
Original estimated total cost: $3.2 million
Project progress: 50%
Then an approved modification changes:
Contract value to: $4.5 million
Estimated total cost to: $3.7 million
The revised economics may change the cumulative amount of revenue and profit that should have been recognized through the reporting date.
That difference can affect the current period.
What About Unapproved Change Orders?
Unapproved change orders require more judgment.
A contractor may have performed work but still be negotiating:
scope;
price;
entitlement; or
final documentation.
Management should understand:
what work has been performed;
what costs have been incurred;
what additional costs remain;
whether the customer acknowledges the change;
how much compensation is expected;
whether the amount is enforceable; and
whether collection is probable.
The fact that the contractor submitted a change-order request does not automatically mean the requested amount should be recognized as revenue.
Approved Scope With Unapproved Price
This is a common construction situation.
The customer agrees:
“Yes, this is additional work.”
But the parties have not agreed on price.
The contractor may need to evaluate the expected consideration as variable consideration under ASC 606.
Management should avoid simply recording the full requested change amount because that is what appears on the proposed change order.
The amount included in the transaction price needs to be supportable under the applicable guidance.
Variable Consideration and Change Orders
Amounts associated with unresolved changes may represent variable consideration.
ASC 606 generally requires management to estimate variable consideration using an appropriate method and apply the variable-consideration constraint.
The objective is to avoid recognizing revenue that carries a significant risk of later reversal.
Relevant evidence might include:
contractual terms;
customer acknowledgment;
historical experience;
negotiation status;
legal rights;
correspondence;
pricing support; and
probability of recovery.
Disputed Change Orders Require Particular Care
Suppose the contractor believes it is entitled to an additional $750,000.
The customer believes it owes only $200,000.
The contractor should not automatically increase contract revenue by $750,000 simply because that amount has been requested.
The analysis may need to consider:
contractual entitlement;
enforceability;
probability of recovery;
expected settlement;
legal advice;
historical outcomes;
and ASC 606's variable-consideration requirements.
The accounting should reflect the supportable economics—not the most optimistic negotiating position.
Costs Still Need to Be Recognized
One of the biggest risks with unresolved change orders is focusing on the uncertain revenue while ignoring very real costs.
Suppose the contractor has incurred:
$300,000
of additional labor, materials, and subcontractor cost.
Even if the final compensation remains unresolved, those project costs exist.
The cost-to-complete forecast should reflect them.
Otherwise, WIP may overstate profitability while management waits for the change order to be resolved.
Change Orders Can Create Margin Fade
A change order does not always improve the project.
For example:
Original expected margin: 20%
Change-order revenue: $500,000
Change-order cost: $475,000
The incremental margin on the change is only 5%.
Depending on the size of the original project, that additional work could reduce the overall project margin.
Change orders should therefore be evaluated for profitability, not simply revenue growth.
Related Resource: What Causes Job Margins to Fade? →
Scope Creep Is Different From a Documented Change Order
Some margin erosion occurs before a formal change order even exists.
Project teams may perform additional work because:
the customer requested it informally;
the team wants to keep the project moving;
scope responsibility is unclear;
the dollar amount seems small;
or documentation is delayed.
Over time, those small items can become material.
Contractors should have a process for identifying potential scope changes before significant cost is incurred.
Track Pending Changes Separately
A useful project report can distinguish:
Approved Changes
Pending Changes
Rejected or Disputed Changes
For each pending change, track items such as:
requested amount;
estimated cost;
cost incurred to date;
remaining cost;
approval status;
billing status;
collection outlook; and
responsible project manager.
This gives leadership much better visibility than combining all potential changes into revised contract value.
Don't Confuse Change Orders With Billings
A change order affects the contract.
Billing determines when the customer is invoiced.
Revenue recognition determines when amounts are earned.
Those events may occur at different times.
For example:
Customer approves a $250,000 change.
Contractor begins work.
Revenue is recognized as performance occurs.
Customer is billed the following month.
Cash is collected later.
That is why construction accounting needs to track:
contract value
earned revenue
billing
and
cash
separately.
Related Resource: Why Billing Is Not the Same as Revenue in Construction →
How Do Change Orders Affect Overbilling and Underbilling?
Change orders can materially affect billing position.
Suppose a contractor performs approved additional work but cannot bill until the next application for payment.
Earned revenue may increase before billing.
That could create or increase an underbilling.
Alternatively, a contractor may be permitted to bill a substantial portion of the change in advance.
That could create an overbilling.
Management should understand the cause rather than simply reacting to the balance.
How Do Change Orders Affect Backlog?
An approved change order can increase remaining contract revenue and therefore backlog.
But backlog reporting should be consistent.
Contractors should define how they treat:
approved changes;
pending changes;
disputed changes; and
unsigned potential work.
Including speculative changes in backlog can overstate the amount of contracted future work.
How Do Change Orders Affect Cash Flow?
Change orders can create significant working-capital pressure.
The contractor may need to fund:
labor;
materials;
subcontractors;
equipment; and
project overhead
before the change is approved, billed, or collected.
A profitable change order can still consume cash for months.
Cash-flow forecasting should therefore include significant change-order activity.
Documentation Is Critical
Strong change-order accounting begins with strong project documentation.
Contractors should maintain:
written customer requests;
executed change orders;
proposed change orders;
pricing support;
subcontractor quotations;
cost estimates;
project correspondence;
schedule impacts;
billing support;
and records of negotiations.
Documentation supports both accounting and collection.
Project Managers and Accounting Need the Same Change-Order Status
A common problem occurs when:
Project management believes a change is approved
while
Accounting still considers it pending.
Or the reverse.
That creates inconsistent:
WIP;
billing;
forecasts;
margins;
and financial reporting.
A centralized change-order log can help establish one source of truth.
A Practical Change-Order Log
A contractor might track:
ItemAmountProposed Change Value$300,000Expected Cost$225,000Cost Incurred to Date$100,000Customer StatusScope ApprovedPrice StatusPendingBilled$0Collected$0
Additional fields can include:
project;
date initiated;
approval date;
project manager;
expected margin;
remaining cost;
billing date;
and notes.
The goal is financial visibility—not paperwork for its own sake.
Review Change Orders During Monthly WIP
Change orders should be part of every significant project review.
Management should ask:
What new changes arose this month?
Which were approved?
Which remain pending?
Which are disputed?
What cost has already been incurred?
What cost remains?
Has contract value been updated appropriately?
Has estimated total cost been updated?
Has the margin changed?
Has the change been billed?
When will cash be collected?
This keeps operational information connected to the accounting.
Watch for Aging Pending Change Orders
A pending change order that is 10 days old may be normal.
One that has remained unresolved for six months deserves more scrutiny.
As pending changes age, leadership should consider:
customer acceptance;
collection risk;
contractual rights;
supporting documentation;
cash exposure;
and whether the revenue assumption remains appropriate.
Aging is often an important risk indicator.
Common Change-Order Accounting Mistakes
Common problems include:
treating proposed changes as approved revenue;
increasing contract value without increasing estimated cost;
failing to capture change-order labor;
ignoring subcontractor change exposure;
recognizing disputed amounts too aggressively;
failing to apply variable-consideration guidance;
performing work without documentation;
failing to distinguish approved and pending changes;
not updating WIP;
failing to connect changes to cash forecasting; and
allowing pending changes to remain unresolved indefinitely.
Each can distort project profitability.
A Simple Example
Assume a contractor begins with:
Original contract value: $3 million
Estimated cost: $2.4 million
Expected gross profit: $600,000
Expected margin: 20%
The customer then requests additional work.
Change-order price: $400,000
Expected change-order cost: $350,000
Revised contract value: $3.4 million
Revised estimated cost: $2.75 million
Revised expected gross profit: $650,000
Revised project margin: approximately 19.1%
The contractor gained $50,000 of expected gross profit.
But the overall margin percentage actually declined.
That is why management should evaluate changes using both:
dollars
and
margin.
The Bottom Line
Construction change orders can affect:
contract value
estimated cost
gross margin
WIP
earned revenue
billing
backlog
and
cash flow.
The accounting depends on whether the change is approved, how clearly scope and price are defined, whether collection is supportable, and how the modification affects the existing contract under ASC 606.
The strongest process connects:
project management → change-order documentation → cost forecasting → WIP → revenue recognition → billing → cash.
A change-order log should not simply tell management how much additional revenue has been requested.
It should tell leadership what the change is expected to earn, cost, bill, collect, and contribute to project profitability.
How Bilotta & Company Can Help
Bilotta & Company, CPAs, LLC works with construction contractors on revenue recognition, WIP reporting, job costing, change-order accounting, financial statement assurance, tax, cash-flow forecasting, and financial leadership.
Through our Contractor Compass® Financial Stewardship program, we help contractors build recurring financial processes that connect project activity to company-level performance.
That means understanding not only:
what changed in the contract
but also
what changed in cost, margin, billing, and cash.
Our Financial Stewardship as a Service® rhythm is:
Close → Analyze → Forecast → Decide.
Related Resource: How Does ASC 606 Apply to Construction Contractors? →
Related Resource: What Causes Job Margins to Fade? →
Related Resource: What Is Overbilling vs. Underbilling in Construction? →
Visit the Construction Contractor Financial Resource Center →
This article is provided for general educational purposes and should not be considered accounting, tax, legal, bonding, lending, or financial advice for a specific contractor or construction contract. The accounting treatment of contract modifications and variable consideration depends on the specific contractual facts and circumstances.