What is the correct way to account for internal labor in fully loaded customer acquisition cost?
Quick Answer: The correct way to account for internal labor in fully loaded customer acquisition cost is to include only the portion of employee time directly attributable to acquiring customers, then allocate that labor cost using a consistent, documented methodology. In practice, this means loading salaries with benefits, payroll taxes, and employer overhead, and prorating by measurable CAC-related activity such as lead generation, sales outreach, demos, proposals, and onboarding.
Detailed Explanation
A fully loaded customer acquisition cost should reflect the true economic cost of acquiring a customer, which requires treating internal labor as an allocated operating input rather than a blanket expense. The cleanest approach is to identify all acquisition-related roles, determine the share of each employee’s time spent on CAC activities, and multiply that by their fully loaded compensation, including salary, bonus, benefits, payroll taxes, and a rational overhead allocation if used consistently across the model. To preserve analytical integrity, exclude time spent on retention, account management, product work, or general administration unless those functions are explicitly part of the acquisition motion and can be apportioned with reliable time tracking or activity-based costing.
Key Technical Drivers
- Use activity-based costing: allocate labor only for work directly tied to acquisition, such as prospecting, qualification, demos, proposal creation, and onboarding tied to new-logo conversion.
- Fully load compensation before allocation by including base pay, variable pay, employer payroll taxes, benefits, commissions, and any approved overhead factor; then apply the CAC time percentage.
- Document the allocation rule and apply it consistently across reporting periods so CAC remains comparable across channels, teams, and cohorts; avoid mixing retention, support, and post-sale labor into acquisition CAC unless separately attributed.