You have clients you think are your whales. They bring in big revenue, and your team loves working with them. But here’s the painful truth: high-revenue clients are often the lowest-profit clients once you factor in all the hidden costs.

Calculating True Profitability Per Client

For every significant client or project, calculate these three components:

Client Revenue — the total contract value billed for the period.

Direct Labor Cost — total cost (salary + benefits + payroll taxes) of team members directly working on that client’s account, multiplied by hours spent. This is where most founders undercount.

Direct Expense Cost — any project-specific software, contractors, or travel directly related to the engagement.

The formula: Client Revenue − Direct Labor Cost − Direct Expense Cost = Gross Profit Per Client

Then divide by Client Revenue to get your Gross Profit Margin for that client. Compare to your firm-wide average. If it’s consistently lower, that whale is an anchor.

Ready to find your real whales? Book a Financial Clarity Session