Construction Change Orders: Protecting Revenue and Job-Cost Accuracy

A crew reroutes ductwork after an owner’s field request. Labor and materials have been used, but the change has no agreed price and has not reached the billing system. The records must show the cost now, while the team resolves authority, pricing and recovery.

This article is part of our guide to construction and contractor accounting.

Construction change orders affect several different figures: agreed contract value, estimated final cost, earned revenue, invoices and cash. Keeping those figures separate helps a contractor see project profit and funding needs. A property owner uses the same supporting documents to track renovation costs and assets, rather than treating the contractor’s bill as the owner’s construction revenue.

Document authorization without delaying the accounting

A change request records proposed scope, price or timing changes. An approved change records the agreement reached; the price may still be unresolved. A change log links the request, supporting evidence, approvals, estimates, costs and billing activity.

Obtain written authorization before extra work where practical, and follow the contract’s notice, approval and emergency-work provisions. Preserve field directions, drawings, requests for information, photographs, time records and correspondence while the facts are available. Identify who has authority to instruct each party.

On accrual books, actual costs and existing obligations belong in the appropriate period even if customer approval is missing. Record the cost against the correct job and flag it as pending or disputed. Whether a cost is expensed or capitalized requires its own accounting analysis; neither a missing signature nor an unpaid invoice automatically means “do not record.”

For example, if a subcontractor has performed $8,000 of work that creates an obligation, record the appropriate project cost or asset and payable. When that previously recorded $8,000 is paid, reduce the payable and cash. The payment is not another $8,000 project cost.

Use separate fields for approval, price and collection

A single status such as “approved” or “billed” hides partial activity. A change can have approved scope, disputed pricing, partial billing and a partial collection at the same time.

Retain the original contract and budget as a baseline. Show approved revisions separately from the latest forecast. Include known pending cost exposure in that forecast, with assumptions and a range where appropriate, even when additional customer compensation remains uncertain. Do not present hoped-for recovery as an agreed contract amount.

Price the actual effect on the job

Estimate materials, labor, equipment, subcontractors, supervision, mobilization and any supported schedule effects. Track rework, restricted access and disruption through project records. Avoid adding a standard productivity percentage without evidence that it fits the work and the contract.

Distinguish markup from margin. If an added scope costs $24,000 and is priced at $30,000, its expected gross profit is $6,000. That is a 25% markup on cost and a 20% gross margin on revenue. Neither percentage includes expenses outside the cost estimate, and neither guarantees the amount ultimately collected.

If this raises questions about Construction Draw Schedules, “Construction Draw Schedules: Reconciling Lender Funding to Job Costs” addresses it directly.

Apply the contractor’s revenue rules separately

Under ASC 606, enforceable modifications can arise through written approval, oral agreement or customary business practices. A dispute or unsigned form does not alone settle the accounting. For approved scope with unresolved pricing, estimate the transaction-price change and evaluate the supporting rights. The FASB staff paper on modifications reproduces the relevant framework.

Modification accounting may involve a separate contract, prospective accounting or a cumulative adjustment, depending on the added work and its relationship to the existing obligations. For an integrated construction obligation, a change can require revising progress and revenue to date. Ask counsel about enforceability where needed.

Revenue follows satisfaction of the performance obligation. Recognize it over time only when an applicable criterion is met; otherwise recognition occurs when control transfers at a point in time. Include uncertain consideration only to the extent it is probable that its later resolution will not cause a significant reversal of cumulative revenue. Reassess the estimate as facts change. FASB’s ASC 606 guidance, including paragraphs 25-27 and 32-11.

A cost-based progress calculation must faithfully reflect performance. Adjust for costs that do not depict progress, such as certain wasted resources or qualifying uninstalled materials. Costs for future performance may require capitalization when the relevant criteria are satisfied. The FASB staff paper on measuring progress includes the applicable input-method and contract-cost guidance. A job-cost report therefore supplies evidence for the accounting assessment; it does not replace it.

Worked example: avoid counting the change cost twice

This hypothetical example is from the contractor’s perspective. Assume one integrated obligation, with the customer controlling the asset as it is improved, appropriate revenue recognition over time, and a cost-to-cost method that faithfully depicts progress. All costs below qualify for that measure and are expensed as performance occurs. There are no special material adjustments, retainage, taxes or financing effects in this illustration.

The original contract is $200,000 with expected total cost of $170,000. An agreed $30,000 change adds $24,000 of work. At the reporting date, all $24,000 of that change cost has already been incurred; original-scope cost incurred is $85,000 and original-scope work still to perform is estimated at $85,000.

The $24,000 belongs in incurred cost. Adding it again to the $85,000 cost to complete would overstate expected cost by $24,000. Current-period revenue is the required cumulative amount less revenue already recognized, not the entire cumulative figure again.

An unbilled change is not automatically an underbilling

Suppose the contract permits advance progress billing and the contractor has already invoiced $200,000, all unconditionally due, and collected $160,000. Accounts receivable is $40,000. Billings exceed the example’s $129,226.80 earned revenue by $70,773.20, creating a contract liability under these assumptions, even though the additional $30,000 change has not been billed.

Thus, $30,000 of approved unbilled contract value is an operational billing fact. It is not a $30,000 contract asset. A contract asset represents a conditional right from performance; an unconditional right is a receivable. Presentation depends on contract rights and performance, not simply whether someone has produced an invoice. ASC 606 presentation guidance, paragraphs 45-1 through 45-4.

Cash collected also differs from profit. The $160,000 received must support unpaid costs, remaining work and other obligations. Forecast collection and payment dates separately from the revenue calculation.

Reconcile the log at each reporting close

1. Scope and value: Match agreed changes to contract records, and identify unresolved claims without treating them as signed commitments.
2. Costs: Tie payroll, vendor invoices and accruals to job detail and the general ledger. Review work performed but not yet invoiced. Correct duplicate entries and wrong job codes.
3. Forecast: Reconcile incurred cost plus remaining estimated cost to the expected total. Remove costs from remaining commitments as they become incurred so they are not counted twice.
4. Revenue and billing: Reassess the transaction price and progress, then reconcile cumulative revenue, billings, receivables, contract assets or liabilities and retainage under the applicable framework.
5. Cash and exceptions: Match receipts to invoices, forecast payments and assign each approval or collection issue an owner and next action.

Use a separate reporting path for property owners

For a landlord buying the renovation, the $230,000 agreed contractor price is a project commitment. It is not construction revenue, and the contractor’s $194,000 internal cost is not the landlord’s cost basis. The owner records its own incurred costs, payables, advances and payments, then determines the appropriate expense or asset treatment.

Assign an entity, property and project identifier to each record. An LLC is a legal form; map its records to its actual federal tax classification and the appropriate owner or entity return. Keep tenant contributions, lender draws and owner funding separately identified rather than netting them against vendor invoices without analysis.

Keep book accounting and tax methods distinct

Contractors must determine whether a contract is a tax long-term contract and whether section 460 percentage-of-completion rules or an exception applies. The residential-construction exception was broadened for contracts entered into in tax years beginning after July 4, 2025. Earlier contracts require their own analysis. Other qualifying construction contracts can be exempt if estimated at inception to finish within two years and the taxpayer meets the gross-receipts test, with the tax-shelter restriction. An exception still requires a permissible, consistently applied tax method, and capitalization rules can remain relevant. Section 460 and its effective-date provisions.

The section 448(c) gross-receipts threshold is $32 million for tax years beginning in 2026, generally measured using the prior three tax years, with aggregation and other rules to evaluate. IRS Revenue Procedure 2025-32, section 4.30. A method change may require Form 3115 and the applicable consent procedure; it is not accomplished just by changing the WIP spreadsheet. IRS Form 3115 instructions. Covered contracts may also require look-back interest calculations after completion. IRS Form 8697 instructions.

Property owners instead analyze whether amounts repair or improve the relevant property. Improvements include betterments, restorations and adaptations to a new or different use, evaluated at the applicable unit of property, building structure or building system. Consider applicable safe harbors separately. IRS tangible-property guidance. For rental improvements, retain evidence of when each asset became ready and available for its intended use; payment or a change-order signature alone does not establish the depreciation start date. IRS Publication 527.

Common questions about change orders

Should costs wait until the change order is signed?

No. Record actual work, consumed materials and existing obligations in the correct period under the accounting basis used. Flag missing authorization and disputed recovery separately. Customer approval and vendor-payment approval do not decide whether an incurred cost exists.

Is every approved but unbilled change a contract asset?

No. Compare cumulative earned revenue with billing and payment rights for the contract. An approved price for future work is not yet earned revenue, and a project can have unbilled change orders while its total billings exceed revenue recognized.

What if an owner disputes a contractor invoice?

Identify the disputed scope, price and authorization, preserve the evidence and follow the contract’s notice and dispute procedures. Determine the obligation and appropriate accounting with the relevant advisers; do not omit an existing liability simply because payment is under review.

Bring a complete project file to the review

Provide the original contract, approved revisions, pending-change log, cost detail, remaining-cost estimate, billings, collections and prior accounting conclusions. Property owners should also include the asset history and completion records. Identify the questions about revenue, tax methods or property classification that need resolution.

Contact CPA Firm South Florida to discuss your accounting or tax needs and confirm the scope, timing and fees for the proposed engagement.