RFR vs MPEEM vs With and Without (W&W)
Three-way comparison of RFR, MPEEM and With & Without — when each method fits, what data you need, and how to defend the choice in PPA and audit.
Introduction
Three asset-level valuation methods do most of the work in purchase price allocation, impairment testing, and corporate IP reviews: Relief from Royalty (RFR), Multi-Period Excess Earnings (MPEEM), and With and Without (W&W). Each approaches fair value from a different angle, each has a defensibility profile shaped by the data it requires, and each has a narrow window where it is unambiguously the right tool.
Under IFRS 3 (UK and global) and ASC 805 (US), all three sit within the income approach and produce values that are accepted by auditors and regulators when applied correctly. The choice between them is not stylistic. It is driven by three questions: what type of asset is being valued, what market or operational data is available, and what role the asset plays in the wider business.
This comparison gives you a practitioner-grade view of how each method works, which assets it suits, the inputs you must assemble, and the pitfalls that get flagged in audit. The reader is assumed to be doing PPA, impairment, or due-diligence work and needs to choose, defend, or review a method.
TL;DR: RFR suits assets that are routinely licensed (brand, technology, patents) and where royalty-rate benchmarks exist. MPEEM suits the primary income-generating asset of an acquired business — typically customer relationships — and only one asset per reporting unit. W&W suits assets whose value is best demonstrated by modelling what the business loses without them — typically non-compete agreements and customer relationships with retention sensitivities.
Relief from Royalty (RFR)
The Relief from Royalty method values an intangible asset by estimating the after-tax royalty payments the owner avoids by owning the asset rather than licensing it from a third party. The logic is that an owner is "relieved" of paying a royalty, and the present value of that relief is the asset's fair value.
How RFR works
- Project the revenue stream attributable to the asset over its remaining useful life
- Apply a royalty rate derived from comparable licensing transactions
- Apply tax to convert pre-tax royalty savings to after-tax cash flows
- Add a Tax Amortisation Benefit (TAB) adjustment where the jurisdiction allows amortisation deduction
- Discount the after-tax cash flows to present value using a risk-adjusted rate
When to use RFR
RFR is the method of choice for assets that are commonly licensed in arm's-length transactions, because licensing observability is what gives the method its market-corroborated defensibility. The strongest fit is brands, patents, developed technology, and software.
- Brands and trade names — extensive royalty databases (RoyaltyStat, ktMINE) provide observable benchmarks across sectors
- Developed technology — technology licensing is common, with rates that bracket cleanly by industry vertical
- Patents — variable by industry, but patent licensing is sufficiently active to anchor a defensible rate
- Software — SaaS and on-premise software licensing is well-documented; rates are recoverable from public agreements
A SaaS acquisition includes a developed-technology asset that powers 100% of the platform's revenue. Comparable SaaS licensing benchmarks show royalty rates between 8% and 15% of subscription revenue. RFR is applied with a midpoint royalty assumption (10%) supported by three direct comparables, projected over a 7-year useful life, and discounted at the acquirer's WACC + 200bps for asset-specific risk.
What you need to apply RFR
- Revenue forecast attributable specifically to the asset, not the wider business
- At least 3-5 comparable licensing transactions for the royalty rate benchmark
- Useful life assumption supported by churn data, contract patterns, or technology obsolescence curves
- Effective tax rate (UK: corporation tax; US: federal + state blended)
- TAB factor where the acquirer can amortise the asset for tax purposes
Defensibility profile
RFR is highly defensible when the comparables are credible. Audit and regulator focus lands squarely on the royalty rate justification: are the comparable transactions truly comparable (same asset type, same industry, same exclusivity terms, same geography)? Where the comparables are thin or stretched, the method's foundation weakens and reviewers will challenge.
RFR's strength is its market anchor. If you cannot find at least three credible licensing comparables for the asset class, RFR is not the right method — and trying to force it will not survive audit.
Multi-Period Excess Earnings (MPEEM)
The Multi-Period Excess Earnings Method values an intangible by isolating the residual earnings that remain after every other asset in the business has been compensated for its contribution. The logic is that if a primary intangible (typically customer relationships) is the engine of revenue, the cash flows it generates can be separated from the cash flows attributable to tangible assets, working capital, workforce, and other intangibles.
How MPEEM works
- Project total cash flows of the business or reporting unit over the forecast period
- Identify every contributing asset — fixed assets, working capital, assembled workforce, brand, technology — and estimate its fair value
- Apply a Contributory Asset Charge (CAC) to each, representing the fair return that asset would require if rented from an arm's-length owner
- Deduct all CACs from total cash flows; the residual is the "excess earnings" attributable to the primary intangible
- Discount the excess-earnings stream to present value
When to use MPEEM
MPEEM is the AICPA Practice Aid's recommended method for the primary income-generating intangible of an acquired business, and only one asset per reporting unit should carry MPEEM. Using MPEEM for two assets in the same unit creates circular dependencies that cannot be reconciled. The typical fit is:
- Customer relationships — usually the primary income generator in services, distribution, SaaS, and consumer businesses; rarely licensed, so RFR does not apply
- Subscriber bases — recurring revenue from contracted relationships maps directly to excess earnings
- Core deposits (banking) — the depositor relationship is the primary intangible; no licensing analogue exists
- Developed technology where it is the primary revenue driver and no comparable royalty market exists
What you need to apply MPEEM
- Multi-period cash-flow forecast for the business or reporting unit (typically 5-10 years plus terminal)
- Full inventory of contributing assets with credible fair values for each
- Required rate of return for every contributing asset class (working capital tends to short rates; brand and technology tend to WACC + premium)
- Customer-churn or attrition curve to shape the excess-earnings decay over the forecast horizon
- Discount rate, often the WACC plus an asset-specific premium
A B2B services acquisition produces £20m of forecast EBITDA in year 1. Working capital CAC at 4% on £6m = £240k. Fixed assets CAC at 8% on £4m = £320k. Workforce CAC at 12% on £3m fair value = £360k. Brand RFR-derived CAC at 6% of revenue applied as a charge = £900k. Total CACs = £1.82m, leaving £18.18m of excess earnings attributable to customer relationships in year 1, decaying at the customer-attrition rate, discounted at WACC + 100bps over a 10-year horizon.
Defensibility profile
Under IFRS 3 (UK and global) and ASC 805 (US), MPEEM is widely accepted but technically demanding. Audit focus concentrates on three areas: the completeness of the contributory asset inventory, the appropriateness of each CAC rate, and the customer-attrition curve used to taper excess earnings. Overstated CACs understate the primary intangible; understated CACs overstate it. Both directions get flagged.
Under IFRS 3 (UK and global), MPEEM is the dominant method for customer relationships in PPA. Under ASC 805 (US) the same applies. Under IAS 38 (UK and global), the same method supports impairment testing of those assets post-acquisition.
With and Without (W&W)
The With and Without Method values an intangible by comparing two cash-flow scenarios: the business with the asset, and the business without it. The difference between the two scenarios — the value the asset contributes by existing — is the asset's fair value. The logic is that some assets are easiest to value by directly modelling what their absence would cost.
How W&W works
- Build a baseline cash-flow forecast for the business with the asset in place
- Build an alternative forecast for the business with the asset absent (assuming the asset is the non-compete agreement: the seller competes; assuming the asset is the customer base: the customers churn at an accelerated rate)
- Apply the same discount rate to both scenarios
- Discount both to present value; the difference between them is the asset's fair value
When to use W&W
W&W is the natural fit for assets whose value lies in their protective or retention effect on the business, rather than in a direct income stream. Typical fits:
- Non-compete agreements — the asset's value is what the seller would have taken away by competing; modelling "with" (no competition) vs "without" (competition) cleanly isolates the protective value
- Customer relationships with retention sensitivities — where the customer base is at material risk of accelerated churn in the asset's absence, W&W directly captures the protected revenue
- Restrictive covenants — same logic as non-competes; the asset prevents value leakage
- Key-person agreements (occasionally) — where a named individual's contractual commitment protects a defined revenue stream
What you need to apply W&W
- Two paired cash-flow forecasts (with and without the asset), built from the same operational baseline
- A defensible set of assumptions for the "without" scenario — competitor behaviour, churn acceleration, margin compression
- Probability weighting where the "without" scenario depends on multiple discrete outcomes
- Useful life — the asset's life is bounded by the duration of its protective effect (contract term, competitive half-life)
- Discount rate consistent with the cash-flow risk profile
A PE-backed acquisition includes a 3-year non-compete from the selling founder. The "with" scenario forecasts customer retention at 92% per year. The "without" scenario, validated by historical evidence of founder-departure churn in comparable deals, forecasts retention at 76% per year for years 1-3, recovering to 90% by year 4. The discounted cash-flow difference over the 3-year non-compete period — adjusted for the probability that the seller would actually compete absent the agreement — is the fair value of the non-compete.
Defensibility profile
W&W is highly defensible for non-competes and retention-sensitive customer assets because the alternative cash-flow scenario is grounded in observable behavioural evidence (typical churn following founder departure, typical margin response to a named competitor's market re-entry). Audit focus lands on the "without" scenario's assumptions — particularly the probability that the alternative outcome would actually occur, and the magnitude of the deviation from the baseline.
Side-by-Side Comparison
The table below is the practitioner's quick reference. Each row is a decision criterion; each column is one of the three methods.
| Criterion | RFR (Relief from Royalty) | MPEEM (Multi-Period Excess Earnings) | W&W (With and Without) |
|---|---|---|---|
| Typical asset types | Brands, trade names, developed technology, patents, software | Customer relationships, subscriber bases, core deposits, primary technology | Non-compete agreements, retention-sensitive customer relationships, restrictive covenants |
| Valuation logic | Hypothetical royalty savings if licensed from a third party | Residual earnings after all contributory asset charges | Difference between "with asset" and "without asset" cash-flow scenarios |
| Data inputs needed | Royalty-rate benchmarks (3-5 comparables), asset-attributable revenue, tax rate, TAB factor | Multi-period cash flows, full contributory-asset inventory with fair values, CAC rates per asset class, customer attrition curve | Paired cash-flow forecasts (with and without), behavioural evidence for "without" scenario, probability weighting |
| IFRS 3 alignment (UK and global) | Accepted — the dominant method for brand and technology | Accepted — the dominant method for customer relationships | Accepted — the standard method for non-competes |
| ASC 805 alignment (US) | Accepted — same dominance pattern as IFRS 3 | Accepted — AICPA Practice Aid endorsement for primary intangibles | Accepted — standard for non-competes and retention-driven assets |
| IAS 38 alignment (post-acquisition) | Used for subsequent impairment testing of recognised brands and technology | Used for subsequent impairment testing of customer-relationship CGUs | Used where the protected revenue stream remains identifiable |
| Defensibility in audit | High when 3+ credible comparables exist; weak when comparables are stretched | High when contributory-asset inventory is complete; vulnerable to CAC challenge | High when "without" assumptions are evidenced; vulnerable to scenario-construction challenge |
| Common pitfalls | Stretching comparables across asset class, industry, or geography; ignoring exclusivity terms | Incomplete contributory asset inventory; CAC rates that double-count or omit; over-aggressive attrition curve | "Without" scenario built without behavioural evidence; ignoring probability weighting; cherry-picking the worst-case alternative |
| Time to complete (single asset, experienced practitioner) | 1-2 weeks including comparable research | 3-5 weeks including contributory-asset valuation | 1-3 weeks including scenario validation |
| Can value multiple assets in one engagement? | Yes — each asset independent of the others | No — only one primary intangible per reporting unit (AICPA constraint) | Yes — but typically applied to one or two specific assets |
| When to combine methods | Combine with MPEEM in the same PPA where brand uses RFR and customer relationships use MPEEM | Combine with RFR for brand/technology and W&W for non-competes within the same PPA | Combine with MPEEM where the customer-relationship asset is split between MPEEM (baseline value) and W&W (retention-sensitive uplift) |
How the methods fit together in a typical PPA
In a full purchase price allocation, all three methods often appear in the same engagement, applied to different assets within the same acquired business. A representative pattern:
- Brand → RFR (royalty market is observable)
- Developed technology → RFR or MPEEM depending on whether the technology is the primary income generator
- Customer relationships → MPEEM (primary intangible) or W&W (retention-sensitive)
- Non-compete agreement → W&W
- Workforce → not recognised separately; absorbed into goodwill or treated as a contributory asset
Cross-checking values across methods, particularly against the implied multiple of acquired EBITDA, is part of the defensibility work. A PPA where the sum of identified intangible assets implies an unreasonable goodwill residual will be questioned regardless of how each individual method was applied.
RFR, MPEEM, and W&W are not interchangeable. Pick the method that matches the asset's economic role (licensable, primary income, or protective) and is supported by available data. Auditors will accept any of the three when applied correctly — and challenge any of the three when the inputs are not credible.
FAQ
Which method should I use for customer relationships?
In most cases, MPEEM — customer relationships are typically the primary income-generating intangible and have no observable royalty market, which is the natural fit for MPEEM. The exception is where retention is materially sensitive to a specific protective factor (a non-compete, a key-person agreement, a contractual covenant); there, W&W can either replace MPEEM or be used in combination to value the retention-sensitive portion separately.
Can I use RFR for customer relationships?
Rarely, and only with strong justification. The Relief from Royalty method assumes the asset would be licensed in an arm's-length transaction, and customer relationships are not licensed in any practical sense. Auditors and regulators will challenge RFR applied to customer relationships unless the practitioner can demonstrate a credible licensing analogue, which is unusual. MPEEM is the default; W&W is the secondary option.
What is the AICPA Practice Aid and does it apply outside the US?
The AICPA Practice Aid (Valuation of Privately-Held-Company Equity Securities Issued as Compensation, and the companion Assets Acquired in a Business Combination) is a US-authored guidance document widely cited as best practice for income-approach valuation. While it sits within the ASC 805 (US) framework, its methodological recommendations — particularly the preference for MPEEM on primary intangibles and the contributory asset charge framework — are routinely applied by UK and international valuers as a methodological reference under IFRS 3 (UK and global). The Practice Aid is not binding outside the US, but its conventions have become the de facto industry standard.
How do contributory asset charges (CACs) work in MPEEM?
Every contributing asset in the business — fixed assets, working capital, assembled workforce, brand, other intangibles — is assigned a fair return rate, applied to that asset's fair value, and deducted from the projected cash flows of the business. The residual is the excess earnings attributable to the primary intangible. The CAC rate for each asset class reflects what an arm's-length owner would charge to rent that asset to the business. Working capital tends to short rates (3-5%); fixed assets sit higher (6-10%); workforce sits higher again (10-15%); brand and technology can attach charges derived from their own RFR rates. The completeness and rate-setting of the CAC inventory is the most frequent audit challenge in MPEEM work.
When does With and Without become more defensible than MPEEM?
When the asset's value derives primarily from its protective effect on a defined revenue stream rather than from a direct income contribution. Non-compete agreements are the clearest case — there is no positive income stream attributable to a non-compete in isolation; the value lies in preventing competition that would otherwise erode revenue. Retention-sensitive customer relationships are the secondary case — where the customer base would churn materially in the absence of a specific contractual or operational factor, W&W can capture the protective value more cleanly than MPEEM's CAC framework allows.
How long does it take to complete an asset-level valuation under each method?
For an experienced practitioner, a single RFR valuation typically takes 1-2 weeks including comparable research. A single MPEEM valuation typically takes 3-5 weeks because of the contributory asset inventory and CAC rate-setting work. A single W&W valuation typically takes 1-3 weeks depending on the complexity of the "without" scenario. In a multi-asset PPA combining all three methods, end-to-end engagements typically run 6-10 weeks from kickoff to draft report.
Can I apply MPEEM to two intangible assets in the same business?
No. The AICPA Practice Aid is explicit that only one primary income-generating asset per reporting unit should carry MPEEM. Applying MPEEM to two assets creates circular dependencies: each method needs the other asset to be valued first as a contributory asset, which is logically impossible if both are using MPEEM. The standard practice is to identify the single primary intangible (usually customer relationships), apply MPEEM to it, and value all other intangibles using RFR, W&W, or cost-based methods as appropriate.
When to Seek Expert Support
The three methods covered here are universal, but their application requires asset-specific judgement: which comparables qualify, which contributory asset rates apply, which "without" scenario is defensible. Edge cases — assets that span multiple jurisdictions, deals where the acquired business is loss-making, impairment testing in volatile sectors — typically warrant specialist valuation input.
Opagio's Asset Valuator module (within Opagio Intangibles) automates the inputs gathering, contributory asset inventory, and cross-method consistency checks that consume the most engagement time. The model output is structured for review by a qualified valuer — the methodology, defensibility narrative, and audit-trail evidence are produced in a format that maps directly to the regulator's expectations under IFRS 3 (UK and global) and ASC 805 (US).
For complex deals or where regulatory exposure is material, the right pattern is automate the mechanical work, then have a qualified specialist review the assumptions and sign the report.
Book a demo: See how Asset Valuator handles a PPA with all three methods applied across brand, customer relationships, and a non-compete. Book a demo or speak to our team.
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