Your schedule is packed, revenue is flowing, and you're busier than ever. So why does the bank balance leave you asking, "where did all the profit go?"
You just wrapped up a massive multi-day roofing project. The crew worked hard, the client is happy, and a big check landed in your account. Yet at month's end, the profit seems to have vanished. Many successful roofing contractors are masters of their trade but are flying blind when it comes to real-time job profitability.
Before founding Briz Bookkeepers, I spent 34 years as an ER and ICU nurse. We didn't wait for a crisis — we watched the vital signs and adjusted early. Your business has vital signs too, and for contractors one of the most critical is the Work in Progress (WIP) report.
The Hidden Drain on Your Roofing Profits
For most roofers, the true financial picture of a job only becomes clear weeks or months after it's done. Extra shingles for an unexpected repair, labor running 15% over estimate, a costly delay — these small, untracked variances are the silent killers of profitability.
What Is a WIP Report?
A WIP report is a financial snapshot of your active jobs — a vital signs monitor for your roofing projects. It brings together contract amounts, costs incurred, updated estimates of the cost to finish, and billing, so you can spot profit changes and billing gaps while the job is still underway.
A Simple Roofing Job Example
$12,600 incurred + $10,500 remaining = $23,100 expected total cost. Expected profit drops from $9,000 to $6,900 — a $2,100 decrease that gives you something concrete to investigate. Was there additional work? Did labor exceed the estimate? Were costs missed when pricing the job?
A WIP report transforms guesswork into a clear financial roadmap for every single job.
The Four Core Benefits
Compare your original estimated profit with your updated projection. If expected costs rise, find the cause while the job is still active.
Patterns in tear-off labor, material waste, disposal charges and return visits help you price future work more accurately.
Spot overbilling or underbilling. Remember: billing a customer doesn't mean you've collected the money.
Current job costs and realistic estimates show which projects need attention — and support pricing and spending decisions.
From Theory to Action
It doesn't have to be complicated. You don't need to become a bookkeeping expert overnight — you need the right tools and a system to track your numbers. At Briz Bookkeepers, we turn the chaos of receipts, invoices and payroll into clear, accurate, actionable reports, so you move from just busy to truly profitable.
Get the WIP Report Calculator for Roofers
Read the full article on the Briz Bookkeepers blog and download the free, simplified calculator for instant insight into your job profitability.
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