A KYC cost per customer is only meaningful by risk tier. The average hides a factor of seventeen between a simplified file and an enhanced one.
KYC onboarding cost per customer is analyst time plus quality assurance plus data costs, computed tier by tier and weighted by the risk mix. For an illustrative firm onboarding 40,000 customers a year, the average is €57.25 per customer, but a simplified file costs €25.00 and an enhanced one €420.00. The 5 per cent of new customers in enhanced due diligence carry 36.7 per cent of the cost.
Worked in full in The EU AML Handbook by Julian R. Sterling, with every figure reproduced in a free workbook.See the book on Amazon →
Budget requests, outsourcing quotes and business cases for onboarding technology all start from a cost per KYC file. A single average is easy to quote and hard to use: it moves whenever the risk mix moves, and it hides where the money goes. The calculation below builds it bottom up, the way an operations team would defend it to a board or a supervisor.
| Tier | Share | Customers | Analyst minutes | QA sample | QA minutes | Data cost |
|---|---|---|---|---|---|---|
| Simplified due diligence | 65% | 26,000 | 20 | 5% | 15 | €4.00 |
| Standard CDD | 30% | 12,000 | 55 | 10% | 20 | €9.00 |
| Enhanced due diligence | 5% | 2,000 | 300 | 100% | 45 | €60.00 |
| Total | 40,000 |
Analysts cost €60 an hour fully loaded, second-line reviewers €80. Data costs cover identity verification, register extracts, screening and, for enhanced files, adverse media and source of wealth evidence. Replace every figure with your own time studies and contracts; the structure is what carries over.
Three costs are left out on purpose: screening and case management licences, management and training overhead, and applications that are started and abandoned or declined. They are real, but they do not scale with the number of files in the same way, and adding them to a unit cost makes it harder to see what a change in mix or process does. Show them as a separate fixed line beside the unit costs, and divide only when a single all-in figure is genuinely needed, for example to compare with an outsourcing quote priced per file.
Unit costtier = minutes ÷ 60 × analyst rate + QA sample × QA minutes ÷ 60 × QA rate + data cost
Cost per customer = Σ sharetier × unit costtier
In Excel, one row per tier: =D2/60*$B$10+E2*F2/60*$B$11+G2 for the unit cost, then =SUMPRODUCT(B2:B4,H2:H4) for the average.
| Tier | Analyst | QA | Data | Unit cost | Total | Share of cost |
|---|---|---|---|---|---|---|
| Simplified | 20.00 | 1.00 | 4.00 | 25.00 | 650,000 | 28.4% |
| Standard | 55.00 | 2.67 | 9.00 | 66.67 | 800,000 | 34.9% |
| Enhanced | 300.00 | 60.00 | 60.00 | 420.00 | 840,000 | 36.7% |
| Total | 57.25 | 2,290,000 | 100% |
The firm spends €2,290,000 a year on onboarding, €57.25 per new customer. Analyst time is 29,667 hours, or 18.5 full-time analysts at 1,600 productive hours each. An enhanced file costs 16.8 times a simplified one, so 2,000 enhanced customers cost more than 26,000 simplified ones.
That ratio is the reason a cost per customer must be quoted with its mix. Two firms with identical processes and different customer bases will report different averages, and the same firm will see its average move when a new product or market shifts customers between tiers. The tiering itself comes from the customer risk score, worked in calculating a customer AML risk score, so a change in scoring weights is also a change in operating cost.
| Enhanced share | Cost per customer | Annual cost |
|---|---|---|
| 3% | €49.35 | €1,974,000 |
| 5% | €57.25 | €2,290,000 |
| 8% | €69.10 | €2,764,000 |
| 10% | €77.00 | €3,080,000 |
Every point of enhanced share costs about €3.95 per customer on average. Doubling the share from 5 to 10 per cent adds €790,000 a year without any change in process. That is the figure to put in front of a business line proposing to onboard customers from a higher-risk market or through a higher-risk channel: the compliance cost of the new segment, per customer, before any revenue is counted.
Automation works on the other side. Cutting simplified files from 20 to 8 minutes and standard files from 55 to 40, through document capture and register lookups, lowers the average to €44.95, a 21.5 per cent saving. The enhanced files, where judgement on source of wealth and adverse media does the work, stay at €420.00 and become an even larger share of the bill.
Onboarding is only the first cost. Every file then falls due for periodic review on a cycle set by its risk rating, so the enhanced tier pays again every year or so. The volume that follows is worked in how many KYC periodic reviews a year the AMLR implies.
The common mistake is multiplying the average analyst time by the hourly rate. Weighted average minutes here are 44.50, which at €60 an hour is €44.50 per customer: 22.3 per cent below the true figure, because it leaves out quality assurance and data, both of which rise steeply in the enhanced tier. The second mistake is benchmarking against another firm's cost per customer without its mix: a lower number may only mean fewer high-risk customers.
Build KYC cost per customer by tier: analyst time, QA and data, weighted by the risk mix. Here that gives €57.25 on average, €25.00 for a simplified file and €420.00 for an enhanced one, with 5 per cent of customers carrying 36.7 per cent of the cost. The free workbook for this case uses the same throughput logic to size the remediation of a whole back book, tier by tier.
Because the time, the review and the data all step up together. In the illustration an enhanced file takes 300 analyst minutes, a full second-line review and €60.00 of data, for €420.00 in total: 16.8 times a simplified file at €25.00. Five per cent of new customers rated high risk carry 36.7 per cent of onboarding cost.
Roughly linearly in the enhanced share. Moving from 5 to 10 per cent of new customers in enhanced due diligence, with the rest of the shift coming from simplified files, raises the average from €57.25 to €77.00 per customer and the annual bill on 40,000 onboardings from €2,290,000 to €3,080,000.
Less than the analyst minutes saved suggest, because enhanced files resist automation. Cutting simplified files from 20 to 8 minutes and standard files from 55 to 40 lowers the illustrative average from €57.25 to €44.95, a 21.5 per cent saving, while enhanced files stay at €420.00 each.
This article is one calculation from The EU AML Handbook. The book takes the same case from first principles to the decision, chapter by chapter, and every figure it prints is a live formula in the free companion workbooks.
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