Construction & ContractorsFinancial Statement Tool

Construction Profit Margin Calculator

Calculate gross profit, gross margin %, net profit after overhead allocation, and net margin % from contract revenue.

Calculation Results

Gross & Net Profit Margin Formulas

Gross Margin % = ((Revenue - Direct Costs) / Revenue) × 100 | Net Margin % = ((Gross Profit - Overhead) / Revenue) × 100
  • Gross Profit: Revenue remaining after paying direct job-site trade costs (materials, field labor, subcontractors).
  • Net Profit: What the company keeps after paying all indirect company operating overhead expenses.
  • Safe Handling: Reliably handles zero revenue scenarios to prevent division by zero errors.

Step-by-Step Worked Example

Scenario: A $150,000 commercial fit-out with $65,000 materials, $40,000 labor, and $15,000 allocated overhead

Calculation Steps:

  1. Total Direct Costs = $65,000 + $40,000 = $105,000
  2. Gross Profit = $150,000 - $105,000 = $45,000
  3. Gross Profit Margin = ($45,000 / $150,000) × 100 = 30.0%
  4. Net Profit = $45,000 - $15,000 = $30,000
  5. Net Profit Margin = ($30,000 / $150,000) × 100 = 20.0%
  6. Markup on Cost = ($150,000 - $120,000) / $120,000 × 100 = 25.0%
Result: The project delivers a 30.0% gross margin ($45,000) and a 20.0% net margin ($30,000) after overhead.

How to Use This Calculator

  1. 1Enter total contracted billing revenue.
  2. 2Input direct costs (materials, labor, subcontractors) and allocated overhead.

Assumptions & Limitations

  • Estimates are based on standard national averages and current prevailing construction materials and contractor rates.
  • Actual trade bids may fluctuate according to local building code requirements, permit fees, and site topography.
  • Always obtain multiple written bids from licensed, bonded, and insured contractors before commencing work.

Frequently Asked Questions

What is a good net profit margin for a construction company?

Commercial general contractors often operate on 3% to 6% net margins on high volume. Residential specialty trade contractors and custom remodelers typically target 10% to 18% net margins.

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