The Client Costing Formula

Stop Secretly Losing Money as a Solopreneur

Let’s break it down, you sell handmade jewelry. You charge $50 for a necklace. You know the beads cost $10. So you think you make $40 profit. But what about the time you spend designing? Or the hours you spend talking to the client? What about the cost of your workshop, your tools, and even the electricity you use? If you don't count these, your $40 profit can quickly disappear. You might even be losing money on that $50 necklace.

This problem is even bigger for service-based businesses like marketing agencies, consultants, or IT firms. Their main cost is often time. Time spent on calls, meetings, revisions, and problem-solving. If this time isn't accurately tracked and valued, you're flying blind. You can't make smart decisions about pricing, client retention, or even which services to offer.

The Client Costing Formula isn't just about finding losses. It's about finding your most profitable clients. It helps you understand where to invest your time and resources. This means you can grow your business more effectively and make more money.

Step 1: List All Your Costs

Before you can know what a client costs, you need to know all your business costs. Think of these as two types: Direct Costs and Indirect Costs.

Direct Costs: These are costs directly linked to a specific client or project. If you didn't have that client or project, these costs would not exist.

• Labor for the project: This is the time your team spends directly working on the client's project. This includes design, development, writing, meetings, and project management specific to that client.

• Materials or software licenses: Any specific materials bought for the client or software licenses needed for their project alone.

• Third-party services: If you hire a freelancer or another company to do part of the work for a specific client.

• Travel expenses: If you travel specifically for a client meeting or project work.

Indirect Costs (Overhead): These are costs of running your business that are not directly tied to one client. You have these costs no matter how many clients you have.

• Rent: Your office space or workshop.

• Utilities: Electricity, internet, water.

• Salaries (non-project specific): Your salary, administrative staff, sales team, etc., whose time isn't billed directly to a project.

• Software subscriptions: General tools you use for your business (CRM, accounting software).

• Marketing and advertising: Promoting your business.

• Insurance: Business insurance.

• Office supplies: Pens, paper, printer ink.

• Professional fees: Accountant, lawyer.

Example: A Web Design Agency

Let's say you run a small web design agency.

Direct Costs for one client's website project:

• Designer's time: 40 hours @ $50/hour = $2,000

• Developer's time: 60 hours @ $60/hour = $3,600

• Premium WordPress theme: $60

• Stock photos: $30

• Specific plugin license: $99

• Project manager's direct time: 10 hours @ $50/hour = $500
  Total Direct Costs = $6,289

Indirect Costs (Monthly):

• Office Rent: $1,500

• Utilities: $300

• Internet: $100

• CRM software: $70

• Accounting software: $50

• Your salary (owner, sales/admin): $5,000

• General marketing: $200

• Insurance: $80
  Total Monthly Indirect Costs = $7,300

You need to know your total indirect costs for a period (like a month or a year). This is crucial for the next step.

Step 2: Calculate Your Hourly Overhead Rate

This is where many businesses miss a crucial step. They only look at direct costs. But your indirect costs are real costs. You need to spread them across all the work you do.

To do this, you need to know your total billable hours. This is the total number of hours your team (and you, if you do billable work) spends directly on client projects in a given period. Don't count admin time, sales time, or breaks here. Only hours that you could potentially bill a client for.

Formula: Hourly Overhead Rate = Total Indirect Costs / Total Billable Hours

Let's go back to our web design agency example.
Assume your team has 3 people (including you).

• Designer: 100 billable hours per month

• Developer: 120 billable hours per month

• You (owner, doing some design/dev work): 80 billable hours per month
  Total Monthly Billable Hours = 100 + 120 + 80 = 300 hours

We calculated Total Monthly Indirect Costs = $7,300.

Hourly Overhead Rate = $7,300 / 300 hours = $24.33 per hour

This means for every hour your team works on a client project, your business incurs $24.33 in overhead costs. This is on top of the wages you pay your team for that hour.

This number is incredibly powerful. It tells you the true "cost of keeping the lights on" for every hour of client work.