IAS 38 vs FRS 102 Section 18: Compared
IAS 38 vs FRS 102 Section 18 for intangible assets. How full IFRS and UK GAAP differ on recognition, development capitalisation, revaluation, amortisati...
Introduction
UK companies face a practical choice between two intangible asset frameworks: IAS 38 (mandatory for UK-listed groups reporting under full IFRS) and FRS 102 Section 18 (the default for UK private companies, LLPs, and charities). While both draw from similar conceptual foundations, they diverge in ways that materially affect reported intangible asset values, earnings patterns, and balance sheet presentation.
The differences are not academic. A UK private company capitalising development costs under FRS 102 makes an accounting policy choice that IAS 38 would mandate. A company transitioning from FRS 102 to IFRS for a listing will discover that its goodwill treatment changes fundamentally — from predictable amortisation to annual impairment testing with potential cliff-edge write-downs.
For founders, CFOs, and PE investors planning an exit or listing, understanding these differences before the transition begins is essential for managing earnings expectations and balance sheet impacts.
IAS 38: The Full IFRS Approach
IAS 38 governs the recognition, measurement, and disclosure of intangible assets under full IFRS. It is comprehensive, detailed, and prescriptive — reflecting the needs of listed companies and their investors for complete and comparable financial information.
Key IAS 38 requirements
| Requirement | Detail |
|---|---|
| Recognition — purchased | Recognised at cost if probable future economic benefits and reliably measurable cost |
| Recognition — internally generated | Research: always expensed. Development: capitalised if all 6 criteria in IAS 38.57 are met |
| Measurement model | Cost model (default) or revaluation model (if active market exists — very rare) |
| Useful life | Finite (amortise) or indefinite (no amortisation; annual impairment test) |
| Amortisation | Systematic over useful life; method reflects pattern of benefit consumption |
| Impairment | Under IAS 36 — annually for indefinite-life; when indicators present for finite-life |
| Impairment reversal | Permitted for intangible assets (but not for goodwill) |
| Disclosure | Extensive — class-by-class disclosure of carrying amounts, amortisation, impairment, useful lives |
The six development capitalisation criteria (IAS 38.57)
An internally generated intangible asset arising from development is recognised only if the entity can demonstrate all of the following:
- Technical feasibility of completing the asset so it will be available for use or sale
- Intention to complete and use or sell it
- Ability to use or sell it
- How it will generate probable future economic benefits (e.g., existence of a market or internal usefulness)
- Availability of adequate resources (technical, financial, other) to complete development and use or sell it
- Ability to measure reliably the expenditure attributable to the asset during development
Under IAS 38, development cost capitalisation is mandatory when all six criteria are met — it is not a choice. This can significantly increase reported assets and reduce reported expenses compared to an entity that expenses all development costs. The criteria are specific enough to create a clear threshold, but judgement is still required in applying them.
FRS 102 Section 18: The UK GAAP Approach
FRS 102 Section 18 provides a simpler, more proportionate framework for intangible assets. It is designed for UK private companies that do not need the full complexity of IAS 38 and serves the vast majority of UK businesses.
Key FRS 102 Section 18 requirements
| Requirement | Detail |
|---|---|
| Recognition — purchased | Same as IAS 38 — cost if probable benefits and reliable measurement |
| Recognition — internally generated | Research: always expensed. Development: entity may choose to capitalise or expense |
| Measurement model | Cost model only — revaluation not permitted |
| Useful life | Finite or indefinite — but goodwill is always treated as finite |
| Goodwill amortisation | Amortised over useful life; if not reliably estimable, maximum 10 years |
| Impairment | When indicators present (finite-life); annually (indefinite-life and goodwill in first year) |
| Impairment reversal | Permitted for intangible assets and goodwill |
| Disclosure | Simplified — proportionate to entity size |
The development cost choice
Unlike IAS 38, FRS 102 gives entities a policy choice on development cost capitalisation. An entity may choose to:
- Capitalise development costs if the criteria in Section 18.8H are met (similar to IAS 38.57 but not identical)
- Expense all development costs as incurred, regardless of whether the criteria are met
This choice is an accounting policy election that must be applied consistently. Many UK private companies choose to expense all development costs for simplicity, even when capitalisation criteria are met.
The policy choice on development capitalisation is one of the most consequential differences between FRS 102 and IAS 38. A software company expensing all development under FRS 102 will show lower assets and lower profits than an identical company capitalising under IAS 38. This affects key ratios, net asset value, and potentially the purchase price in a transaction.
Side-by-Side Comparison
Detailed comparison
| Dimension | IAS 38 (IFRS) | FRS 102 Section 18 (UK GAAP) |
|---|---|---|
| Applicability | UK-listed groups (mandatory); others by choice | UK private companies, LLPs, charities |
| Development costs | Must capitalise if 6 criteria met | May capitalise or may expense (policy choice) |
| Revaluation | Permitted (if active market — rare) | Not permitted |
| Goodwill amortisation | Not amortised under IFRS 3 | Amortised over useful life (max 10 years if indeterminate) |
| Goodwill impairment reversal | Prohibited | Permitted |
| Intangible impairment reversal | Permitted | Permitted |
| Indefinite-life intangibles | Permitted — no amortisation, annual impairment test | Permitted — same treatment |
| Disclosure depth | Extensive (IAS 38.118-128) | Simplified and proportionate |
| Business combination intangibles | Full IFRS 3 recognition (separable or contractual-legal) | Section 19 — may recognise fewer intangibles separately |
IAS 38: Choose When
- Company is UK-listed (mandatory)
- Preparing for IPO or cross-border listing
- International comparability is important
- Development capitalisation would materially improve reported position
- Investors or lenders prefer full IFRS reporting
FRS 102 Section 18: Choose When
- UK private company (default framework)
- Simpler reporting is preferred
- Goodwill amortisation suits the business model
- Disclosure burden should be proportionate
- No near-term plans for listing
The Goodwill Question: Amortise vs Impairment-Only
The most visible difference between the two frameworks is the treatment of goodwill. Under FRS 102, goodwill is amortised — creating a predictable, annual earnings charge that gradually reduces the carrying amount. Under IFRS, goodwill is not amortised — it sits on the balance sheet at its original value until an impairment test reveals that the carrying amount exceeds the recoverable amount.
Practical implications
| Factor | FRS 102 (Amortise) | IFRS (Impairment-Only) |
|---|---|---|
| Earnings impact | Predictable annual amortisation charge | No charge until impairment — then potential large write-down |
| Balance sheet | Goodwill declines steadily over useful life | Goodwill remains at acquisition value until impaired |
| PE exit preparation | Earnings "depressed" by amortisation; add-back may be needed in EBITDA | No amortisation charge; EBITDA not affected |
| Transition impact | On transition to IFRS, amortisation ceases; goodwill frozen at net carrying amount | N/A |
| Investor preference | Some PE investors prefer predictable amortisation | Listed investors familiar with impairment-only model |
Companies transitioning from FRS 102 to IFRS for a listing must carefully model the goodwill transition. Under IFRS 1, the entity can elect to freeze goodwill at the FRS 102 carrying amount on transition date — meaning any amortisation already taken is not reversed. But going forward, the amortisation charge disappears, which can create a step-change in reported earnings that requires investor communication.
Practical Example: UK Software Company Transition
A UK SaaS company is preparing for an AIM listing and must transition from FRS 102 to IFRS. The company has:
- Goodwill from a 2023 acquisition: £10 million (being amortised over 10 years under FRS 102)
- Development costs: £3 million expensed under FRS 102 (policy choice to expense all)
- Acquisition date: 3 years ago
FRS 102 position (current)
| Item | Carrying Amount |
|---|---|
| Goodwill (£10m - 3 years amortisation at £1m/year) | £7.0 million |
| Capitalised development costs | £0 (all expensed) |
| Total intangibles | £7.0 million |
| Annual goodwill amortisation charge | £1.0 million |
IFRS position (post-transition)
| Item | Carrying Amount |
|---|---|
| Goodwill (frozen at FRS 102 carrying amount — IFRS 1 election) | £7.0 million |
| Capitalised development costs (retrospective capitalisation required) | £2.1 million (net of amortisation) |
| Total intangibles | £9.1 million |
| Annual goodwill amortisation charge | £0 (impairment-only) |
| Annual development cost amortisation | £0.6 million (on capitalised balance) |
The transition increases total intangible assets by £2.1 million (from development capitalisation) and reduces the annual amortisation charge by £0.4 million net (£1.0 million goodwill amortisation removed, £0.6 million development amortisation added). For the AIM listing prospectus, this needs careful explanation — the step-change in earnings is a presentation effect, not a change in the business.
Business Combinations: Recognition Differences
In a business combination, IFRS 3 generally requires more intangible assets to be separately recognised than FRS 102 Section 19. This means:
- Under IFRS: Customer relationships, order backlog, non-compete agreements, and other identifiable intangibles are measured at fair value and separately recognised — reducing goodwill
- Under FRS 102: The recognition threshold may result in fewer intangibles being separately identified — increasing goodwill (which is then amortised)
The net effect on total reported intangibles may be similar, but the split between identified intangibles and goodwill — and therefore the amortisation pattern — can differ materially.
Choosing Between Frameworks
1. Assess current and future reporting needs
If listing, cross-border M&A, or international investor reporting is planned within 3-5 years, consider adopting IFRS early to avoid a disruptive transition.
2. Model the earnings impact
Quantify the difference in reported earnings under each framework — particularly goodwill amortisation vs impairment and development cost capitalisation. Present this to the board.
3. Consider stakeholder preferences
PE owners may prefer FRS 102's goodwill amortisation for EBITDA add-back clarity. Institutional investors typically prefer IFRS for comparability. Lenders may have covenant implications from the choice.
4. Evaluate proportionality
FRS 102's reduced disclosure requirements save real time and cost for smaller entities. If the company does not need IFRS-level reporting, FRS 102 is the proportionate choice.
Conclusion
IAS 38 and FRS 102 Section 18 serve different populations of UK companies with different information needs. FRS 102 offers simplicity, goodwill amortisation, and a policy choice on development costs — pragmatic features for private companies. IAS 38 offers comprehensive intangible asset information, international comparability, and mandatory development capitalisation — essential for listed companies and those preparing for the public markets.
For companies approaching a transition, the key is to model the financial statement impact early and communicate the changes clearly to stakeholders. For the broader accounting standards comparison, see FRS 102 vs IFRS and IAS 38 vs ASC 350.
The Bottom Line
FRS 102 gives you simplicity and predictable goodwill amortisation. IAS 38 gives you comparability and mandatory development capitalisation. The right choice depends on your audience — PE owners, listed investors, or management. If a listing is on the horizon, model the IFRS transition impact now — the goodwill and development cost changes will flow straight to reported earnings.
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