Customer contracts and relationships are frequently the single most valuable identifiable intangible asset in a business combination. In service businesses, B2B companies, and recurring-revenue models, customer relationships can represent 40-70% of all identifiable intangible asset value — often exceeding technology, brand, and all other categories combined.
Under IFRS 3, customer-related intangible assets encompass both contractual customer relationships (where a formal contract exists) and non-contractual customer relationships (where the business has a demonstrated pattern of repeat dealings without formal agreements). Both are identifiable and must be valued separately when material.
| Characteristic | Contractual | Non-Contractual |
|---|---|---|
| Legal basis | Written contract or agreement | Established pattern of dealings |
| Examples | SaaS subscriptions, supply agreements, service contracts | Retail customers, professional service clients, regular purchasers |
| Identifiability | Clearly identifiable through contractual rights | Identifiable through separability (customer lists are tradeable) |
| Valuation basis | Remaining contractual cash flows + renewal expectation | Historical purchasing patterns + expected continuation |
| Key risk metric | Contract renewal rate | Customer retention rate |
Both types generate excess earnings above the contribution of other assets, and both are valued using the MPEEM.
Customer relationships do not require a formal contract to be recognisable under IFRS 3. A non-contractual relationship that generates repeat revenue with measurable retention rates is an identifiable intangible asset with quantifiable value.
MPEEM is the standard valuation method for the primary intangible asset in a business combination — typically customer relationships. It isolates the cash flows attributable specifically to the customer relationship by deducting returns required on all other contributing assets.
Forecast revenue from the customer base at the acquisition date, applying customer attrition rates year by year. New customers acquired after the acquisition date are excluded — they do not belong to the existing relationship asset.
Apply the appropriate profit margin to existing customer revenue. This should reflect the margin earned from the existing base, which may differ from the overall company margin.
Subtract a fair return on all other assets that contribute to earning the customer revenue: working capital, fixed assets, assembled workforce, technology, and trademarks. Each charge reflects the return a market participant would require for the use of that asset.
Tax-effect the excess earnings and discount at an asset-specific rate, reflecting the risk profile of customer relationship cash flows.
The contributory asset charges are central to MPEEM — they ensure the customer relationship is not credited with returns that belong to other assets. Typical charges include:
| Contributing Asset | Charge Basis | Typical Range |
|---|---|---|
| Net working capital | Return on fair value | 3-5% |
| Fixed assets | Return on fair value | 8-12% |
| Assembled workforce | Return on replacement cost | 8-15% |
| Technology / software | Return on fair value | 12-20% |
| Trademarks / brand | Return on fair value | 10-15% |
The contributory asset charges must be internally consistent with the values assigned to those assets elsewhere in the PPA. If the trademark is valued at £5 million using RFR, the contributory charge for the trademark in the MPEEM must reflect that £5 million value. Inconsistency between the MPEEM inputs and other asset valuations is a common audit finding.
Customer attrition — the rate at which existing customers stop generating revenue — is the most consequential assumption in customer relationship valuation. A 5% annual attrition rate implies a very different value from a 20% rate.
Attrition should be measured based on actual historical data, using consistent methodology:
A professional services firm with 200 client relationships is acquired. Analysis of five years of billing data shows annual revenue-based attrition of 8%, with long-standing clients (10+ years) showing only 3% attrition while newer clients show 15%. The MPEEM should use stratified attrition rates or a weighted average that reflects the actual customer mix, not a single blended rate.
The useful life of customer relationships is determined by the period over which the existing customer base will continue to generate excess earnings. Two common approaches:
Attrition-based: The useful life equals the period until cumulative attrition reduces the existing customer revenue to an immaterial level. With 10% annual attrition, approximately 90% of customers are lost within 22 years (using the decay formula).
Revenue-based: The useful life equals the period over which the existing customers contribute meaningfully to total revenue. As the customer base attrites, new customer acquisitions increasingly dominate — at some point, the existing relationship asset is effectively exhausted.
In practice, useful lives of 5-15 years are common. Subscription businesses with high switching costs (enterprise software, professional services) tend toward the longer end, while transactional businesses with low loyalty (retail, hospitality) tend toward the shorter end.
Higher customer relationship values reduce residual goodwill in the PPA. Because customer relationships have a finite useful life (and generate tax amortisation benefits in many jurisdictions), maximising the allocation to customer relationships — where supported by evidence — creates measurable tax value for the acquirer. This is a legitimate consideration in PPA methodology selection, provided the resulting values are supportable.
For SaaS and subscription businesses, customer contracts and relationships have particular characteristics that affect valuation:
These characteristics often make customer relationships the dominant intangible asset in SaaS acquisitions — sometimes representing 50-70% of the purchase price above net tangible assets.
Customer contracts and relationships are one of five customer-related intangible assets under IFRS 3. For the full classification, see 35 types of intangible assets. To explore subscription-specific valuation, read subscription-based customer relationships.
Tony Hillier is an Advisor at Opagio with over 30 years of experience in structured finance, M&A advisory, and intangible asset valuation. Meet the team.
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