Debt review cost per lead vs cost per client: a practical comparison

There are several useful cost-per-client measures, provided they are labelled correctly.

Media-only cost per accepted client divides advertising spend by the defined accepted-client count.

Defined marketing cost per accepted client adds the marketing costs included in the model, such as contact handling, management and a selected commission arrangement.

A wider business acquisition cost may also include production, technology, internal staff and other acquisition-related expenses, depending on the accounting definition.

None of these is automatically practice profit. Revenue collection, professional fulfilment, overhead, financing, tax and retention are separate questions. A report should not change the cost boundary halfway through a comparison.

Now assume 80% contactability and R75 per contractually billable contactable enquiry. That produces approximately 974.36 contactable enquiries and R73,076.92 in handling costs.

Add the historical R48,000 monthly management input and select a 10% media commission scenario. The calculation becomes:

The result is materially different from R2,800 because it answers a different question. It is not evidence that the media-only figure was wrong; it is evidence that the media-only figure was incomplete for a wider cost comparison.

The historical model also describes alternative 20% and 30% commission arrangements. They are alternatives, not cumulative charges. With the same fixed-budget assumptions, they produce defined costs per accepted client of approximately R6,750.15 and R7,030.15.

Current fees and commercial terms require a current agreement. Production, technical implementation and other practice costs are not silently included in these totals.

Consider a separate hypothetical example. These are invented inputs to explain the relationship, not observed Webvelopment results.

Source A looks cheaper when measured only by CPL. In this example it generates more handling work and fewer accepted clients, so its media-plus-handling cost per client is higher.

This does not prove that higher-priced leads are better. The accepted-client counts are assumptions. The lesson is that the better source cannot be selected from CPL alone.

Shared management, production and technology costs are excluded from both example totals. Add them consistently before making a wider business comparison.

An enquiry received yesterday has had less opportunity to become a client than one received six weeks ago. If the newest cohort is judged against a mature one, a campaign can look inefficient simply because its outcomes have not yet occurred.

Maintain both acquisition-period reporting and event-period reporting. The first asks what eventually happened to enquiries acquired in a period. The second asks what the team processed or collected during a period.

Both are useful, but they answer different questions. Do not divide this month’s media spend by all clients accepted this month without understanding how many were acquired earlier.

Similarly, preserve source evidence. Unknown attribution should remain unknown. Crediting the same client in full to several channels inflates the total and makes channel comparisons unreliable.

At minimum, record spend, source, unique enquiries, contactability, defined handovers, accepted clients, payment outcomes where available, cohort age and the costs included in the calculation.

Use reason codes for invalid details, duplicates, wrong-service enquiries, objections, incomplete handovers and unresolved outcomes. Do not group all losses under “bad lead” when the interventions differ.

The qualification and nurturing guide explains the operating definitions. The CRM and onboarding guide explains the information structure needed to retain the history.

The same errors appear repeatedly when practices compare acquisition sources. Each one makes a cost look better or worse than it is.

Dividing this month’s spend by this month’s clients. Many of this month’s accepted clients came from earlier enquiries. The result mixes cohorts and penalises growth months.

Counting the same client in several channels. A person who saw a social advert, later searched and then enquired should not be counted as a full client in both channel totals.

Mixing billable and analytical definitions. A supplier may charge per contactable enquiry while the practice analyses accepted clients. Both are valid, but they cannot be substituted for one another.

Treating missing source data as organic. An enquiry without a recorded source is unknown. Labelling it organic makes paid channels look less effective and organic look more effective than the evidence supports.

Comparing a new source with a mature one. A source that started three weeks ago has not had time to produce its accepted clients. Compare cohorts of similar age.

Ignoring handling cost. A source with a low CPL but poor contactability can create more contact work per client than a more expensive one, as the earlier hypothetical example showed.

Can the team explain the accepted-client definition? Are the costs complete for the comparison being made? Are the cohorts equally mature? Is the receiving process working? Does professional capacity support more volume? Are the apparent improvements based on enough comparable evidence?

If those questions remain unanswered, a larger budget may create more uncertainty rather than a clearer result.

CPL is a useful acquisition measure. It becomes commercially meaningful when connected to the rest of the journey and the costs of operating that journey.

The next action may be a campaign change, better expectation-setting, a contact-process improvement or a reliable integration. The calculation should help identify which question to investigate, not justify a predetermined media increase.

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