Contractor WIP Series: True Margins Help Price Risk & Build Better

Written By Nick Bilotta

Contractors do not need another accounting report they cannot use.

They need to know what they earned, what it cost to earn it, where each project is headed, and whether today’s cash is masking tomorrow’s problem.

That is what a properly prepared work-in-process schedule can reveal.

This five-part series breaks down WIP accounting in practical terms, from revenue recognition and overbillings to cost allocation and the mistakes that distort job margins.

Part Five.

A contractor can have strong sales, busy crews, a healthy backlog, and cash in the bank, and still be losing ground.

Revenue alone does not answer the questions that matter:

  • Did the company price the work correctly?

  • Is the expected gross margin holding?

  • Has the risk profile changed?

  • Are field and support costs fully captured?

  • Is cash coming from earned profit or future obligations?

  • Are change orders recovering the full cost of disruption?

  • Which types of projects should the company pursue again?

Reliable WIP reporting helps answer them.

Better Margins Produce Better Decisions

When owners know their true margins, they can price more than labor, materials, and subcontractors.

They can price:

  • Schedule risk

  • Customer risk

  • Procurement risk

  • Labor availability

  • Bonding and insurance requirements

  • Warranty exposure

  • Supervision

  • Project complexity

  • Working-capital demands

  • The overhead infrastructure required to deliver the work

A contractor that does not understand its full cost structure may win more work while weakening the company.

Margin Fade is Signal

A project originally estimated at a 20% gross margin may later forecast a 14% margin, and may close out at 11.3%.

The nine-point decline is not just an accounting adjustment. It is information.

It may point to:

  • Estimating assumptions that need to change

  • Scope gaps

  • Weak change order controls

  • Labor productivity issues

  • Subcontractor performance

  • Purchasing delays

  • Inadequate project supervision

  • Poor cost coding

  • Customer or contract risks that were not properly priced

A disciplined WIP process helps management identify those patterns while it can still act.

Better Financial Information Supports Better Construction

Accurate job margins create accountability from estimating through closeout.

Estimators receive feedback about the accuracy of their assumptions. Project managers see the financial consequences of field decisions. Accounting identifies missing costs and billing delays. Leadership can make informed decisions about customers, project types, staffing, and growth.

That feedback loop strengthens both the financial model and the product delivered to the customer.

The purpose of WIP is not to make a spreadsheet perfect.

It is to help contractors understand what they have earned, what they still owe, where risk is accumulating, and which decisions will build a stronger company.

Because when owners know their true margins, they price risk better.

And when they price risk better, they have more capacity to build better work.

Let’s Connect

Is your WIP schedule helping you operate, or is it only being updated for year-end reporting?

Bilotta & Company’s Contractor Compass® helps construction companies connect job costing, WIP, cash flow, forecasting, and financial reporting into one consistent operating rhythm.

Close → Analyze → Forecast → Decide.

Nick Bilotta
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Contractor WIP Series: Common Errors That Distort Margins