Your accountant hands you this month’s Construction WIP report (Work in Progress). You glance at the columns of numbers, nod knowingly, and file it away. Sound familiar?
Here’s the problem: that WIP report construction teams rely on isn’t just another financial document gathering dust. It’s your early warning system for projects that are losing money, your proof of financial health for bonding companies, and your roadmap for making smarter business decisions.
If you’ve ever discovered a project lost $40,000 only after completion, or struggled to explain your financials to a lender, your WIP report could’ve warned you months earlier.
This guide breaks down exactly how to read your construction WIP schedule, what those numbers mean, and how to use this powerful tool to protect your profits.
What Is a Construction WIP Report?
A construction WIP report (also called a work in progress schedule) shows the financial status of all your active projects at a specific point in time. Think of it as a financial snapshot that captures where each project stands while work is still underway (i.e. costs incurred, revenue earned, and profit realized).
Unlike your profit and loss statement that shows overall company performance, your construction WIP schedule breaks down the financial health of each individual project. This matters because you might be profitable as a company overall while simultaneously losing money on specific jobs.
Why Construction Needs Special Reporting
Construction companies can’t wait until project completion to recognize revenue. A six month project billing $500,000 would show zero revenue for five months, then suddenly $500,000 in month six. That’s not how business works.
Instead, contractors use the percentage of completion method for revenue recognition. As work progresses, you recognize proportional amounts of revenue and costs. Your work in progress report calculates these amounts and shows whether your projects are performing as expected.
Key Components of a Construction WIP Report
Understanding your construction WIP report starts with knowing what you’re looking at.
Contract Information
Contract Value: The total amount you’ll bill for the project, including approved change orders.
Estimated Total Cost: What you expect to spend to complete the entire project including labor, materials, equipment, subcontractors, and allocated overhead.
Estimated Gross Profit: The difference between contract value and estimated total cost.
Actual Performance to Date
Costs Incurred to Date: All money spent on the project so far, including paid invoices, accrued costs, and allocated overhead.
Percent Complete: How much of the project is finished, calculated by dividing costs incurred by estimated total costs.
Earned Revenue: The amount of contract value you’ve “earned” based on percent complete.
Billed to Date: How much you’ve invoiced the client. This may be more or less than earned revenue.
The Critical Numbers
Overbilling (or Underbilling): The difference between what you’ve billed and what you’ve earned. This is where your work in progress report reveals potential problems.
- Overbilling means you’ve billed more than you’ve earned. You’re ahead on billings but will need to complete more work before billing again.
- Underbilling means you’ve earned more than you’ve billed. You have revenue sitting there waiting to be invoiced.
Estimated Profit/Loss at Completion: Based on costs to date and revised estimates, what profit or loss do you expect when the project finishes?
How to Read Your WIP Report
Let’s walk through a real example.
Sample Project: Commercial Warehouse
- Contract Value: $450,000
- Estimated Total Cost: $385,000
- Estimated Gross Profit: $65,000 (14.4% margin)
- Costs Incurred to Date: $270,000
- Percent Complete: 70% ($270,000 ÷ $385,000)
- Earned Revenue: $315,000 (70% × $450,000)
- Billed to Date: $290,000
- Underbilled Amount: $25,000 ($315,000 – $290,000)
What This Tells You:
Project Is On Track: At 70% complete, you’ve spent 70% of your budget. Your costs are tracking exactly with progress which is a good sign.
You’re Underbilled: You’ve earned $315,000 but only billed $290,000. That $25,000 represents work you’ve completed but haven’t invoiced yet. Submit your next progress billing to catch up.
Profit Looks Stable: Since costs are tracking with progress, your estimated profit at completion should still be close to $65,000.
Problem Project: Office Renovation
- Contract Value: $280,000
- Estimated Total Cost: $240,000
- Estimated Gross Profit: $40,000 (14.3% margin)
- Costs Incurred to Date: $190,000
- Percent Complete: 79% ($190,000 ÷ $240,000)
- Earned Revenue: $221,200 (79% × $280,000)
- Billed to Date: $245,000
- Overbilled Amount: $23,800 ($245,000 – $221,200)
Red Flags:
Severe Overbilling: You’ve billed $245,000 but only earned $221,200. You’re $23,800 ahead on billings.
Budget Trouble Ahead: You’re 79% complete but already at 79% of budget. Any additional costs will exceed budget and eat into profit.
Profit at Risk: The overbilling suggests you may have billed optimistically. If actual costs come in at $250,000 instead of $240,000, your profit drops to $30,000 (25% reduction).
This is exactly why accurate job cost tracking matters in construction.
Common WIP Report Mistakes (And How to Spot Them)
According to SVA Certified Public Accountants, one of the biggest pitfalls in WIP reporting is inaccurate cost tracking or estimated total costs. “Those estimates drive everything,” construction CPA Vanessa Conlin says. “If they’re off, the whole report is off.”
Mistake #1: Outdated Estimated Costs
Your construction WIP schedule still shows six month old estimates despite 15% material price increases. Result? Your percent complete looks better than reality, and you won’t see the profit erosion until it’s too late.
How to Spot It: Compare your original estimate to current market conditions. Update your estimated total cost when material, labor, or subcontractor costs shift significantly.
Mistake #2: Misaligned Completion Percentages
Your project manager says the job is 60% complete. Your WIP report shows 45% complete. That 15% gap means either your cost estimate is wrong, or your PM’s assessment is optimistic.
How to Spot It: Meet monthly with project managers to reconcile physical completion with financial completion.
Mistake #3: Not Including All Costs
Your work in progress report shows costs of $150,000, but you have $15,000 in unpaid subcontractor invoices sitting in accounts payable. Your actual costs are $165,000.
How to Spot It: Make sure your WIP includes accrued costs (work performed but not yet paid).
Mistake #4: Ignoring Change Orders
You’ve completed $30,000 in extra work, but the change order hasn’t been approved yet. Your costs are up, but your contract value isn’t, so your WIP report shows the project losing money.
How to Spot It: Track pending change orders separately. Note them on your WIP report even if not yet approved.
Understanding Overbilling and Underbilling
Overbilling and underbilling are critical concepts in your work in progress report. They show the timing difference between when you bill and when you earn revenue.
How to Use Your WIP Report to Improve Profitability
Using your WIP Report to improve job profitability analysis is where the real value lives.
Spot Trouble Early
Run your WIP report monthly minimum. Compare each project’s performance to the previous month. Look for:
- Shrinking estimated profit: If last month showed $50,000 and this month shows $42,000, dig in immediately
- Growing overbilling: Often signals cost overruns
- Flat progress with rising costs: If percent complete barely moves but costs keep climbing, you’re bleeding money
Make Data-Driven Decisions
Project Staffing: If Project A is ahead of budget and Project B is over budget, shift resources to shore up Project B before profit disappears.
Cash Flow Planning: Underbilled amounts represent cash you’ll collect soon. Overbilled amounts mean you need to complete work before more cash comes in.
Future Bidding: Track which project types consistently show healthy profits. Bid more of those. Jobs showing poor WIP performance? Fix your estimating or stop pursuing that work.
Improve Communication With Stakeholders
Your construction WIP schedule isn’t just for internal use.
Lenders: Banks want to see healthy WIP reports. Consistent profitability and manageable over/underbilling demonstrate financial stability.
Bonding Companies: Surety companies require WIP schedules to evaluate bonding capacity. Clean WIP reports improve your bonding terms.
Potential Buyers: Clean WIP reporting showing consistent profitability makes your company more valuable.
Creating Accurate WIP Reports With the Right Tools
According to the AICPA, WIP schedules should be updated monthly minimum, with numbers crosschecked against other financial statements. Manual WIP reporting is time-consuming and error-prone.
What Construction Accounting Software Should Provide
- Automatic WIP Generation: Compile cost data, calculate percentages, and generate WIP reports automatically
- Real-Time Updates: As costs post to job cost accounts, your WIP report updates automatically
- Multiple Calculation Methods: Handle different revenue recognition methods
- Integration With Job Costing: All costs flow automatically into your WIP calculations
- Customizable Formatting: Generate WIP reports formatted for different stakeholders
JOBPOWER’s WIP Reporting Capabilities
JOBPOWER’s construction accounting software generates comprehensive WIP reports automatically:
- Real-time WIP updates as job costs post
- Automatic percentage of completion calculations
- Over/underbilling tracked by project
- Customizable report formats for different audiences
- Integration with job costing, billing, and general ledger
- Historical WIP comparisons to track project trends
Unlike QuickBooks or generic accounting solutions, JOBPOWER understands construction accounting fundamentals and automates the complex calculations contractors need. Learn more about JOBPOWER’s construction accounting features.
Best Practices for WIP Reporting
Update Estimates Regularly: Your estimated total costs aren’t set in stone. Update them as you learn more about actual project conditions.
Include All Costs: Make sure your costs to date include everything—direct labor, materials, equipment, subcontractors, and allocated overhead.
Reconcile With Project Managers: Meet monthly to ensure financial and physical completion align. Gaps indicate estimating issues.
Track Change Orders Separately: Show pending and approved change orders clearly in your WIP report.
Keep Historical WIP Reports: Compare current WIP to previous periods. Trends matter more than single snapshots.
The Bottom Line
Your WIP report isn’t just another financial document. It’s your early warning system for project problems, your proof of financial health for lenders and bonding companies, and your guide for making smarter business decisions.
Contractors who understand and actively use their work in progress reports spot cost overruns early, maintain healthier cash flow, and make data-driven decisions that protect profitability. Those who file WIP reports without reading them? They discover project losses only after it’s too late to fix them.
Take thirty minutes this week to really study your current WIP report. Look for the patterns we discussed:
- Are costs tracking with progress?
- Where are you over or underbilled?
- Have estimated profits changed?
- Do completion percentages align with PMs’ assessments?
That half hour might just save you $50,000 on your next project.
Ready for Better Financial Visibility?
JOBPOWER’s construction accounting software automatically generates detailed WIP reports that help you spot problems early and make data-driven decisions. Our integrated platform connects job costing, billing, and financial reporting so your WIP reports are always accurate and up-to-date.
See how JOBPOWER’s WIP reporting can transform your project oversight:
👉 Learn More About Construction Accounting Features
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Frequently Asked Questions
Q: How often should I run a WIP report? Monthly at minimum. Some contractors run WIP reports bi-weekly or even weekly for large projects. More frequent reporting lets you catch problems earlier.
Q: What’s a normal overbilling or underbilling percentage? Generally, over/underbilling within 10% of contract value is considered normal business timing. Beyond 10% suggests either billing issues (underbilling) or cost control problems (overbilling).
Q: Should I include retention in my WIP calculations? Yes. Retention should be included in both earned revenue and billings to date. This creates underbilling equal to the retention amount, which is accurate because you’ve earned that revenue but haven’t been paid yet.
Q: My WIP report shows a profit, but I don’t have cash. Why? Your WIP report shows economic profit (revenue earned minus costs incurred), not cash flow. You might be underbilled, have slow-paying clients, or have paid costs faster than you’ve collected revenue. Check your accounts receivable aging and over/underbilling amounts.
Q: Can QuickBooks generate a proper WIP report for construction? QuickBooks lacks native WIP reporting for construction. You can export data and manually create WIP reports in Excel, but this is time-consuming and error-prone. Construction-specific software generates WIP reports automatically with the calculations contractors need.