Revenue Retainer calculator (illustrative)

The Revenue Retainer, on a real invoice

Build the monthly number from revenue you can forecast

Start from the roofing example, or drag in your own client’s numbers. The invoice updates as you go.

Illustrative model

Baseline attributable revenue
Trailing 12 months, marketing-attributed $2,400,000

Forecast growth +15%

Agreed percentage of the forecast 5%

The exact figure is its own decision — held loose here.

The math, step by step

Forecast revenue (12 mo)$2,760,000

× agreed 5% → annual fee$138,000

÷ 12 → one monthly line

Marketing — monthly fee$11,500

The same client, priced the other two ways

% of a $50K ad budget (15%)$7,500 / mo

Hourlya different total every month

A proposed pricing structure, shown at concept level: a single percentage ÷ 12. The fee can also be split across milestones, like a recruiting fee (an open option). Numbers are an illustrative home-services composite, not a quote or a sourced figure.