Why is my net margin lower than my target profit?

Bond premium and overhead are calculated on top of direct costs but reduce the margin between your bid price and total cost. Retainage does not reduce profit but locks cash — a $500K job at 10% retainage means $50K you do not collect until substantial completion.

What is a typical markup for subcontractors?

Most specialty subcontractors mark up 15-25% over direct costs to cover overhead and profit. The effective net margin after overhead and bond costs typically lands at 5-10%. CFMA survey data shows the median net profit for specialty contractors is around 5-7%.

Should I include retainage in my bid price?

Retainage does not change your bid price — it changes your cash flow. The retainage percentage tells you how much of each pay app is withheld. Factor retainage into your cash flow planning, not your markup calculation.

What is the break-even markup?

The break-even markup is the minimum percentage over direct costs needed to cover overhead and bond costs with zero profit. Any markup below this number means you lose money on the job. Use it as your absolute pricing floor.

Sub Markup Optimizer | Free Net Margin Calculator

The Sub Markup Optimizer calculates net margin for subcontractor bids after stacking overhead, retainage, and bond costs on top of direct costs (labor, materials, lower-tier subs, equipment). It shows effective markup, break-even markup, and the full cost stack.

Job Cost Inputs

Self-Performed Labor Cost

Material & Supplier Cost

Lower-Tier Sub Cost

Equipment Cost

Overhead Rate

Office overhead as % of direct cost (typical 8-15%)

Retainage Held

% held by GC on each pay app (typical 5-10%)

Bond Premium

If bonded, premium as % of contract value (typical 1-3%)

Target Profit

Your desired net profit margin on this job

Cost Stack Breakdown

Self-Performed Labor$180,000.00

Materials & Suppliers$120,000.00

Lower-Tier Subs$85,000.00

Equipment$15,000.00

Overhead (12.00%)$48,000.00

Bond Cost (2.00%)$9,676.80

Profit (8.00%)$35,840.00

Bid Price$483,840.00

Markup Analysis

Bid Price$483,840.00

Direct Cost$400,000.00

Overhead$48,000.00

Bond Cost$9,676.80

Net Profit$26,163.20

Net Margin5.41%

Effective Markup20.96%

Break-Even Markup14.42%

Retainage of $48,384.00 will be withheld from each pay app until substantial completion.

Example

A mechanical sub prices a hospital HVAC job with $180K labor, $120K materials, $85K lower-tier ductwork, $15K equipment rental.

Self-Performed Labor$180,000.00

Materials & Suppliers$120,000.00

Lower-Tier Subs$85,000.00

Equipment$15,000.00

Overhead (12%)$48,000.00

Bond Cost (2%)$9,676.80

Profit (8%)$35,840.00

Bid Price$483,840.00

Net Margin5.41%

Effective Markup20.96%

Break-Even Markup14.42%

Net Profit$26,163.20

How to Use This Tool

1Enter your four direct cost categories: labor, materials, lower-tier subs, and equipment.
2Set your overhead rate, retainage percentage, bond premium, and target profit margin.
3Review the cost-stack breakdown to see where your money goes.
4Check the net margin and effective markup — adjust target profit if below your floor.

How to Apply the Results

Compare the net margin to your company minimum (typically 5-8% for subs). If the net margin is below your floor, adjust the target profit upward or look for cost reductions. The break-even markup tells you the minimum markup to avoid losing money.

Frequently Asked Questions

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