Understanding True Cost-to-Serve with ABC Analysis

Roger Knocker • June 1, 2026

Profitability isn’t always where you think it is

Most finance teams know their direct costs. ERP systems do a decent job of tracking those.

But very few really know the True Cost-to-Serve.



That is where activity-based costing (ABC) comes in. It is not new. Kaplan and Wilson introduced it 30 years ago, but back then it was too demanding to put into practice. Today the methods are simpler, the tools are better, and the insight is too valuable to ignore.


Here is what ABC gives you:

1️⃣ A clear view of whether profitable customers are cross-subsidising the loss-makers
2️⃣ An understanding of which clients you are over-servicing, and whether it is justified
3️⃣ Options to test different business models, web, distributor, agent, or direct
4️⃣ Clarity on whether your pricing is right, or significantly off
5️⃣ A spotlight on inefficiency inside your own processes


I once worked with a business convinced their biggest customer was their most profitable. On the surface, the revenue and direct costs looked fine. But once we allocated the overheads, the service time, admin support, and special handling, it turned out that customer was a loss-maker.


That is what advanced analysis really does. It does not just tell you “we missed target.” It tells you why, and what to do about it.


Once you understand the real cost to serve, you unlock choices:

  • Do we adjust the price?
  • Do we change the model?
  • Do we scale back the service levels?
  • Or do we carry this customer for strategic reasons while they grow?

Profitability is not always where you think it is. Advanced analysis, built on ABC, helps you see clearly where it is created and where it is leaking.

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