SWPPP CONTRACTOR NET PROFIT MARGIN.
Healthy net profit margin for SWPPP contractors runs 7.5–8.5% at $1M–$10M in revenue, the highest baseline in the specialty cluster, but still below the 12% CFOS target. The single biggest compressor is missing per-site profitability visibility across a multi-site portfolio.
SWPPP contractors typically run a portfolio of active sites billed and reported in aggregate. That aggregate view can look perfectly healthy while a subset of underperforming sites, overstaffed, under-billed, or over-serviced, quietly erodes the margin generated by the strong ones. Net margin only becomes visible, and correctable, once profitability is tracked site by site instead of blended into one portfolio number.
Net Profit Margin Formula: Net Profit ÷ Total Revenue × 100. Net margin measures what's left after every cost is paid, including overhead; gross margin only measures job-level cost before overhead absorption.
SWPPP NET PROFIT BENCHMARKS WHERE YOU SHOULD BE.
| METRIC | INDUSTRY LOW | SPM TARGET | STRONG | NOTES |
|---|---|---|---|---|
| Net Profit Margin | 7.5% | 12% | 13.5% | Primary bottom-line indicator; most compressed by unbilled cost categories. |
| Gross Margin | 24% | 22–30% | 34% | Job-level margin before overhead absorption. |
| Overhead Rate | 14% | 9–13% | 8% | Lower is better; scales down as revenue grows. |
| Days Sales Outstanding | 90 | 45 | 30 | Time from billing to cash in hand. |
| Working Capital Ratio | 1.0 | 1.5 | 2.0+ | Current assets to current liabilities. |
DSO and Working Capital Ratio targets are flat across trades; margin and overhead targets are CFOS targets applied to SWPPP/erosion control subcontractors. Benchmarks validated 2026-06-14.
WHAT MOVES THIS NUMBER.
Aggregate portfolio billing hides which specific sites are unprofitable
Without per-site cost tracking, a handful of underperforming sites can subsidize, or be subsidized by, the rest of the portfolio for an entire season. The blended number that results tells the owner nothing about which sites to fix or drop.
Above-benchmark SWPPP contractors track cost and billing at the site level
Top performers break out job costing by individual site rather than by portfolio, and they forecast cash around historical rain-event billing patterns instead of a flat monthly assumption, which smooths the feast-or-famine seasonal swing.
Check per-site cost tracking, stored-materials billing for BMP installs, and seasonal cash reserve planning first
If net margin is below benchmark, check whether job costing happens at the site level or only the portfolio level, whether BMP material costs are billed as stored materials ahead of the inspection event, and whether a dry-season cash reserve is planned in advance.
FLAT MONTHLY FEE. NO SURPRISES.
Three tiers based on trailing 12-month revenue. No hourly billing. No payroll. No add-ons.
| Revenue (Trailing 12 Months) | Monthly Fee |
|---|---|
| Under $1M | $1,900 – $2,900 |
| $1M–$3M | $2,600 – $3,900 |
| $4M–$6M | $3,800 – $5,700 |
| $7M–$9M | $5,100 – $6,900 |
| $10M–$12M | $6,100 – $8,500 |
| $13M+ | Quoted |
Range reflects three service tiers (Core Financial, Executive Financial, Strategic Financial) · scope and fee within each band depend on which tier fits your business. Strategic Financial includes ControlQore job costing and WIP software at no added cost. SPM does not handle payroll.
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