Revenue Retainer calculator (illustrative)

The Revenue Retainer, as an invoice line

Build the monthly number from revenue you can forecast

Start from the preset numbers, or drag in your own client’s. 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 percentage is your call.

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

Concept-level structure. Numbers are an illustrative home-services composite, not a quote.