How to Measure Client Profitability

Revenue is what a client pays or is billed. It is not profit. A $6,000 client can be a worse use of the week than a $3,500 client if the first one consumes far more hours and costs.

The Client Profitability Calculator reports profit, margin, and revenue per hour from the figures you include. This guide is how to choose those figures honestly.

The four inputs that matter together

1. Revenue — what you expect to receive for the client or project.
2. Hours — production, meetings, email, revisions, project management, and admin related to this client.
3. Direct costs — expenses that exist because of this work.
4. Other client-specific costs — extras not already in the expense line.

Leave hours out and a large invoice can hide a low return on time. Leave costs out and “profit” is just revenue.

Profit here is not take-home pay. Overhead you did not enter, unpaid sales time you did not count, and tax still have to come out of what remains.

Revenue per hour is not hourly profit

Effective hourly revenue is client revenue ÷ total hours. It shows how much revenue that client generates per hour of actual time. It is not hourly profit, which would subtract costs first.

It is also not the effective hourly rate from a quoted fee and unpaid work in a typical week. That tool ignores costs. This one ignores quoted rate and looks at one client’s revenue, hours, and costs.

A comparison, not a rule

Imagine two hypothetical clients.

• Client A pays $2,400, takes 24 hours, costs $200. Profit is $2,200. Revenue per hour is $100.
• Client B pays $4,000, takes 80 hours, costs $400. Profit is $3,600. Revenue per hour is $50.

Client B produces more total profit. Client A produces more revenue per hour. Neither is universally better. Capacity, recurring work, strategic value, and whether you can raise the fee all sit outside the formula.

Enter a real client instead of using this illustration as a decision.

When the number looks bad

There is no universal margin that means “fire this client.” Warning signs are usually operational: endless revisions, meetings that dwarf production, unclear scope, a fee that was set before hours were counted.

Things that can change the inputs — none guaranteed:

• Raise the price on the next cycle.
• Define scope and included revisions.
• Bill extra work separately.
• Reduce meetings that do not change the deliverable.
• Stop taking a poor fit.

If you are still quoting the work, price the project or set the retainer with hours and overhead visible, then come back here once you know what you were paid and what the work took.

This is a planning tool. It is not accounting, tax, or legal advice. Actual profitability depends on the costs you include and on expenses this page does not see.