Contractor Profit Margins Explained in Under 3 Minutes (Know Your Numbers or Lose Money)
You're Making Money, But Are You Actually Keeping It
The difference between gross and net profit margins is the difference between staying busy and building wealth.
Most contractors can tell you what their revenue was last year. They might even know their gross profit. But ask them about their actual net profit margin, and you'll get a blank stare. This isn't just a minor accounting detail—ignoring these numbers is costing you serious money every single day.
Gross Profit vs. Net Profit: The Numbers That Actually Matter
Let's break this down in plain English:
Gross profit margin is what's left after you subtract direct job costs: materials, labor, equipment rentals, and subcontractors.
Net profit margin is what you actually keep after paying for everything else: office rent, insurance, trucks, admin salaries, and taxes.
A contractor with a 15% gross margin but heavy overhead can end up with only 3% net profit. That gap is the difference between struggling and thriving.
The Math You Need to Know
Gross Profit Margin = (Revenue – Direct Costs) ÷ Revenue × 100%
Net Profit Margin = Net Income ÷ Revenue × 100%
If you’re not hitting these benchmarks, you’re likely underpricing or overspending:
Residential: 8-11% net margin
Commercial: 5-10% net margin
Specialty subcontractors: 10-25% net margin
The "Know Your Numbers" Philosophy
At The Blue Claw Group, we've built our consulting practice around one concept: Know Your Numbers. This means knowing your break-even point to the dollar and tracking job costs in real-time.
Contractors who master their numbers make better decisions on bidding, hiring, and growth. The ones who don't? They work harder every year and wonder why their bank account doesn't reflect it.
Check out our online course Know Your Numbers on LightspeedVT: Know Your Numbers Coming to Lightspeed VT — The Blue Claw Group