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A construction accountant turns contracts, field costs, progress updates, billings and collections into a reliable view of each job’s financial performance. The role goes beyond entering invoices: it keeps costs tied to the right project, updates estimates, prepares work-in-progress (WIP) schedules, supports revenue calculations under the applicable accounting rules and alerts management when profit or cash is at risk.
What a construction accountant is responsible for
Construction accounting organizes financial information around individual contracts. For every active job, the accountant needs the contract value, a current estimate of total cost, costs incurred to date and billings (often called requisitions) to date. Those data points show how much work has been performed, how much revenue may be earned under the applicable framework, what has been billed and whether the expected margin is changing. The AICPA & CIMA’s explanation of WIP schedules describes this project-level view as central to contractor reporting.
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The accountant is therefore a bridge between the general ledger and the jobsite. Typical responsibilities include:
- Setting up contracts, budgets, cost codes and billing terms in the accounting system.
- Recording labor, materials, equipment, subcontractors, permits, insurance and other costs against the correct project and category.
- Comparing actual cost with the estimate and investigating variances.
- Maintaining the estimate of total cost to complete and documenting changes in scope or assumptions.
- Preparing and reconciling WIP schedules.
- Supporting contract estimates, bids and change-order accounting.
- Coordinating with project managers, superintendents, owners and outside accountants.
- Producing financial information for management, lenders, sureties, owners and tax professionals.
AICPA & CIMA identifies estimating, bidding, jobsite accounting, billing, costs and revenue as contractor-specific control areas in its 2025 Construction Contractors: Audit and Accounting Guide.
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How the role differs from general bookkeeping
A general bookkeeper can maintain a company’s cash, payables, receivables and bank reconciliations. A construction accountant must also explain what is happening inside each contract while work is unfinished. The same invoice can affect company cash, a project’s cost-to-date, a WIP calculation and a tax or financial-reporting entry in different ways.
| Question | General bookkeeping view | Construction-accounting view |
|---|---|---|
| Where did the cost go? | Which account was charged? | Which contract, phase and cost code should carry it? |
| Is the job profitable? | What has been posted so far? | How do cost-to-date and the current total-cost estimate compare with contract value and expected margin? |
| What is revenue? | What was invoiced or received? | What amount has been earned under the applicable accounting method? |
| What is the project status? | What is in the ledger? | Does the ledger agree with field progress, commitments, the WIP schedule and the financial statements? |
| What needs attention? | Unpaid bills or unusual account balances | Cost overruns, underbilling or overbilling, delayed collections, stale estimates, unapproved change orders and margin erosion |
This distinction matters most on lump-sum and fixed-price work. Rob Mercado, CPA, CCIFP, managing director at CBIZ, says, “Any contractors that work on lump-sum or fixed-price contracts have to track the progress on the project through the life of the project, from beginning all the way to the end,” in the AICPA & CIMA WIP article.
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How a construction accountant follows a job from contract to close
1. Set up the contract and budget
The accountant records the signed contract amount, customer, billing terms, retainage provisions, approved change orders and the original cost estimate. The budget is divided into meaningful cost codes—such as labor, concrete, steel, equipment or subcontractors—so later transactions can be compared with the plan. A cost code that is too broad hides problems; one that is inconsistent across jobs makes company-wide analysis unreliable.
2. Capture costs at the job level
Payroll, purchase orders, supplier invoices, subcontractor applications, equipment charges and overhead allocations are coded to the contract and phase where they belong. The accountant checks that costs are posted in the correct period and follows up on missing invoices, unapproved time, duplicate charges and costs sitting in a suspense or general overhead account.
3. Update the estimate to complete
Actual spending is only half of the forecast. The project team must estimate the remaining labor, materials, subcontractor commitments, equipment and other costs. The accountant incorporates that information into the estimated total project cost and records the basis for material revisions. Because the estimate is an estimate, it can change even when the physical work has not; a revised denominator changes the calculated completion percentage and expected gross margin.
4. Compare performance with the project team
Numbers are tested against field knowledge. A project manager may know that a subcontractor claim is disputed, a design change is likely or a major delivery has been delayed before those facts appear in the ledger. The accountant brings those operational facts into the financial forecast and flags assumptions that need a decision.
5. Prepare billings and monitor receivables
The accountant prepares progress billings or requisitions according to the contract, records receivables and retainage, and tracks approvals and collections. A billing records what the contractor is asking the customer to pay; it does not by itself establish how much revenue has been earned.
6. Close the period and report
At month-end, the accountant reconciles job-cost detail, the WIP schedule, the general ledger and the financial statements. Exceptions are explained to management, and correcting entries or estimate changes are documented before reports are issued.
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Job costing: the foundation of project profitability
Job costing assigns each expenditure to the contract and cost category that caused it. It lets management compare actual cost with the budget and determine whether the original estimate remains credible. The quality of every later WIP or margin calculation depends on this coding.
What belongs in a job-cost record
- Direct labor: time charged by employees to a specific project.
- Materials: purchased or delivered materials allocated to that contract.
- Subcontractors: committed and invoiced work, including approved applications for payment.
- Equipment: owned or rented equipment charged under the company’s policy.
- Other direct costs: permits, testing, freight, insurance or specialist services tied to the job.
- Allocations: indirect costs applied consistently when the accounting policy requires them.
A cost posted to the wrong contract can make one job look unprofitable while overstating another. An outdated total-cost estimate can make a job appear more profitable than it will be. Accountants therefore review unusual variances, open purchase orders, unbilled commitments and costs recorded after the reporting date.
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For a cost-based progress measure, costs incurred to date are the numerator and the current estimated total allocable cost is the denominator:
Completion percentage = allocable costs incurred to date ÷ estimated total allocable costs.
For illustration, the AICPA & CIMA article uses $250,000 of cost on a project with a $1 million budget, which corresponds to 25% completion in that example. The article then describes recognizing 25% of revenue and gross profit for the illustration. This is not a universal entry or a substitute for the contractor’s accounting policy, contract facts or applicable standards.
WIP schedules: what they show and why they matter
A work-in-progress schedule is a project-by-project report for contracts that are underway. It makes the assumptions behind progress and margin visible instead of leaving them buried in separate ledgers, billing files and field reports. Mercado describes the purpose this way: “The work-in-progress schedule allows us to calculate at that moment how much revenue was earned through that date.”
Core WIP fields
| Field | What it tells management |
|---|---|
| Contract price | The current value of the contract, including approved changes under the company’s policy. |
| Estimated total project cost | The latest forecast of all allocable cost required to finish. |
| Costs incurred to date | Cost posted to the job through the reporting date. |
| Completion percentage | Progress calculated under the selected, consistently applied measure. |
| Earned revenue | The amount of contract revenue recognized under the applicable reporting framework. |
| Billings or requisitions to date | Amounts invoiced to the customer, which may differ from earned revenue. |
| Receivable, underbilling or overbilling indicators | Whether invoicing and collection status are keeping pace with reported progress. |
| Estimated gross profit | Expected contract margin based on the current price and cost forecast. |
The schedule is for contractor contract performance. It should not be confused with capital construction-in-progress accounting for an owner building its own long-lived asset.
A practical monthly WIP close
- Update job costs. Post payroll, supplier invoices, subcontractor costs, equipment and other charges through the cut-off date.
- Refresh estimates. Obtain the project manager’s cost-to-complete forecast and record approved scope changes and known exposures.
- Calculate progress and earned amounts. Apply the company’s accounting policy and the contract facts to the current estimate.
- Compare costs, earned revenue and billings. Investigate large differences, unusual margins, negative costs, stalled jobs and projects with little billing relative to progress.
- Reconcile. Tie the WIP totals to the job-cost subledger, general ledger and financial statements. The AICPA & CIMA article recommends checking WIP figures against other financial statements.
- Review with project managers. Discuss exceptions and document why an estimate, percentage or billing balance changed.
- Issue the report. Provide management with the current contract status, risks and actions rather than only a spreadsheet of balances.
The AICPA & CIMA guidance says WIP schedules are commonly updated monthly. A monthly rhythm catches estimate changes and collection problems sooner than an annual review.
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Percentage of completion: earned revenue is a calculation
Percentage of completion is a way to recognize contract activity as performance occurs when the applicable financial-reporting or tax method permits it. The measure of progress might be cost-based or another consistently applied measure allowed by the relevant framework and contract facts.
Federal tax example and its limits
Under the federal tax regulation’s percentage-of-completion method, completion is generally determined by comparing allocable contract costs incurred with estimated total allocable contract costs, and contract price is included in income in proportion to the completed percentage for the taxable year. Read the full rule in 26 CFR § 1.460-4. Other methods, exceptions and special rules exist, so this description does not select a method for every contractor, contract, tax return or financial-reporting framework.
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Why the estimate changes the result
Suppose a job has $250,000 of allocable cost incurred. If estimated total allocable cost is $1 million, the cost-to-cost measure is 25%. If the forecast later rises to $1.25 million, the same $250,000 of spending represents 20% under the revised estimate. The physical work did not move backward; the expected total changed. That is why accountants document estimate revisions and discuss them with the project team.
Billing is not revenue
Mercado states, “Revenue for contractors is not generated by requisitioning a customer. Revenue is generated through a calculation, the percentage of completion.” He also says, “Requisition doesn’t mean anything. It’s just a cashflow mechanism.” His point is that an invoice or requisition is evidence of a billing event, not proof that the same amount has been earned. The WIP schedule connects progress, cost and earned revenue; the accounts-receivable ledger tracks what has been billed and remains unpaid.
Billings, receivables, collections and cash flow
These terms describe different events. Confusing them can leave a profitable-looking contractor unable to pay payroll or suppliers.
| Term | Meaning | Question the accountant asks |
|---|---|---|
| Earned revenue | Amount recognized for performance under the applicable accounting method. | How much of the contract has been earned by the reporting date? |
| Billing or requisition | Amount invoiced under the contract’s billing procedure. | What has the contractor asked the customer to pay? |
| Accounts receivable | Approved or recorded customer amounts still owed. | Which invoices are due, disputed, retained or awaiting approval? |
| Collection | Cash actually received from the customer. | When will money arrive, and is it enough to meet near-term obligations? |
| Cash outflow | Payments to employees, suppliers, subcontractors, lenders and others. | Can the company fund the work until customer cash is collected? |
A job can have earned revenue greater than billings, creating an underbilling-type balance, or billings greater than earned revenue, creating an overbilling-type balance. Neither balance alone proves that the customer has paid. The accountant monitors billing approvals, retainage, disputed items, aging receivables and expected collection dates alongside WIP.
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Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Controls that keep construction reports reliable
Construction accountants help design and operate controls that connect office records with field activity. Useful controls include:
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- Separating preparation, approval and payment of invoices where staffing permits.
- Requiring purchase orders or subcontract agreements before commitments are incurred.
- Matching invoices and pay applications to contracts, receipts, approved quantities and change orders.
- Reviewing unapproved change orders and claims separately from signed contract value.
- Reconciling payroll hours and equipment usage to job reports.
- Locking closed periods and documenting late entries.
- Reviewing unusual gross margins, negative costs, large estimate swings and jobs with no recent cost activity.
- Maintaining an audit trail for estimate changes, WIP adjustments and manual journal entries.
These controls support the contractor-specific areas—estimating, bidding, jobsite accounting, billing, costs and revenue—outlined by AICPA & CIMA.
Common problems and how the accountant investigates them
| Symptom | Likely questions | First checks |
|---|---|---|
| Margin falls sharply from one month to the next | Did the cost forecast rise, or were costs misclassified? | Compare the current and prior estimate-to-complete, review new commitments and inspect unusual job-cost entries. |
| Costs are high but progress appears low | Are costs posted too early, or is work genuinely inefficient? | Check delivery timing, stored materials, subcontractor accruals, field quantities and the progress measure. |
| Billings exceed earned revenue | Is the contract billed ahead of performance, or is revenue understated? | Reconcile approved billings to the contract, WIP calculation, change orders and customer ledger. |
| Earned revenue exceeds billings | Is the contractor underbilled, or is billing delayed by approval or documentation? | Review pay-application status, retainage, unapproved changes and the customer’s payment process. |
| Profit is reported but cash is short | Are receivables slow, retainage large or costs payable sooner than customer cash arrives? | Review aging, collection commitments, weekly cash forecast, supplier terms and upcoming payroll. |
| WIP does not tie to financial statements | Were late entries, eliminations or manual adjustments omitted? | Reconcile the job-cost subledger, general ledger, billing report and WIP totals by project. |
Tax rules and professional review
Federal tax treatment for long-term construction contracts is fact-specific and has changed recently. The IRS Instructions for Form 8697 (12/2025) describe look-back requirements and exceptions, including a $31 million average annual gross-receipts threshold for the specified 2025 contract rule and contract-duration criteria. The IRS says the inflation-adjusted threshold for tax years beginning after 2025 should be checked in current-year instructions or its inflation-adjustment materials; the 2025 figure should not be reused automatically as a 2026 threshold.
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1Fix the driver behind crashes, sound loss and screen glitches2Repair Windows errors before they cause bigger problems3Scan for outdated or missing drivers - takes under a minuteIRS Internal Revenue Bulletin 2026-39 explains amendments to section 460 related to residential construction contracts, including changes effective for contracts entered into in taxable years beginning after July 4, 2025. The effect depends on the taxpayer, contract and effective-date facts. A construction accountant should coordinate method selection and tax filings with a construction CPA or other qualified tax professional.
The IRS Construction Industry Audit Techniques Guide offers industry context, a glossary and discussions of contract types, accounting methods and joint ventures. It is dated April 2021, so it is useful background rather than a complete statement of current law.
What a good monthly report lets an owner decide
A useful construction-accounting package does more than show whether the bank account increased. It helps an owner decide whether to:
- Approve a revised estimate or investigate an unexplained variance.
- Escalate a change-order or claims issue.
- Accelerate a customer collection or resolve a billing hold.
- Adjust purchasing, staffing or subcontractor strategy.
- Protect cash for payroll, taxes and committed suppliers.
- Revisit the bid assumptions used on similar future work.
Those decisions are possible only when the contract value, current cost forecast, costs incurred, progress, earned revenue, billings and collections are kept distinct and reconciled.
Skills and information a construction accountant needs
The role combines accounting judgment with operational communication. Important capabilities include:
- Understanding contracts, scopes, retainage, change orders and payment clauses.
- Building and reviewing cost-code structures and budgets.
- Analyzing estimates to complete rather than relying only on posted costs.
- Explaining WIP and margin movements to non-accountants.
- Reconciling detailed job reports to the general ledger.
- Recognizing the difference between financial reporting, federal tax accounting and cash management.
- Knowing when a contract-specific question requires a CPA, tax adviser, surety or legal review.
Construction software can support job-cost tracking, commitments, billing and WIP workflows, but a system does not replace consistent coding, current estimates, documented approvals or review with project managers.
Quick Recap
Further reading
- AICPA & CIMA: WIP schedules—Blueprints for solid construction accounting
- AICPA & CIMA: 2025 Construction Contractors: Audit and Accounting Guide
- 26 CFR § 1.460-4, Methods of accounting for long-term contracts
- IRS Instructions for Form 8697 (12/2025)
- IRS Internal Revenue Bulletin 2026-39
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