Crypto Impairment vs Fair Value: The Measurement-Model Shift

One decision sets the shape of a crypto balance sheet: is the asset measured at cost-less-impairment or at fair value? US GAAP just switched models; IFRS largely did not. This guide is the asymmetry between the two, why the old model was criticised, and the earnings-volatility consequence finance teams now own.

TL;DR

• Cost-less-impairment = asymmetric: written down on impairment, never up. Fair value = symmetric: remeasured each period, gains and losses.
• US GAAP: legacy indefinite-lived intangible (cost-less-impairment) → ASU 2023-08 fair value through net income (see ASU 2023-08).
• IFRS: still defaults to IAS 38 cost model (cost less impairment); fair value only via the conditional revaluation model, gains to OCI (see IAS 38 and crypto).
• The old model understated holdings in a rising market and booked impairment on every dip — economically misleading.
• Fair value moves earnings with crypto price every period — a covenant/KPI consequence to brief.

The asymmetry, precisely

Cost-less-impairment: the asset enters at cost; if its value falls below carrying amount it is impaired (written down); if value later recovers, US-GAAP indefinite-lived intangible treatment did not permit a write-back. One-way down.

Fair value: the asset is remeasured to fair value at every reporting date, with the change recognised. Both an increase and a decrease are captured. Symmetric.

The difference is not cosmetic. Over a volatile cycle, the impairment model converges to "lowest point ever observed, minus more on the way down," while the fair-value model tracks the actual position.

What US GAAP did

Legacy US GAAP had no crypto standard, so crypto was an indefinite-lived intangible: cost-less-impairment. It was widely criticised for misrepresenting the economics of an asset with an observable market price. ASU 2023-08 (Subtopic 350-60) replaced it with fair value through net income, effective for fiscal years beginning after 15 December 2024 (see ASU 2023-08). US GAAP crypto is now symmetric and in net income.

What IFRS did (mostly) not do

IFRS never adopted a mandatory fair-value model for crypto. Under the IFRS IC June 2019 decision, non-broker-trader crypto is IAS 38, defaulting to the cost model — cost less impairment, no write-up. Fair value exists only under the revaluation model, which:

• requires an active market for the asset; and
• routes increases to other comprehensive income (revaluation surplus), not profit or loss.

So IFRS still largely runs the impairment-style model US GAAP has now left. The exception is the IAS 2 broker-trader path (fair value less costs to sell through P&L — see crypto held as inventory).

The framework gap, side by side

A dual-reporting Web3 entity will show different crypto carrying amounts and different earnings under US GAAP and IFRS. That gap is structural, not a reconciliation error (see IFRS vs US GAAP for crypto).

The earnings-volatility consequence

Fair value through net income means crypto price movements hit earnings every period, including interim. Net income now co-moves with the crypto market. Practical effects:

• Debt covenants keyed to earnings or net assets can swing with token price.
• Earnings-based KPIs and guidance become more volatile.
• Forecasting and tax provisioning must model price sensitivity.

This is a finance-team communication task before the first fair-value period closes — not an audit-time surprise.

Practical guidance

1. Identify your framework and scope — US-GAAP-in-scope → mandatory fair value; IFRS → IAS 38 default.
2. Stop assuming "impairment only" under US GAAP — write-ups are now required in scope.
3. For IFRS, justify any revaluation with an active market; otherwise stay on the cost model.
4. Model earnings sensitivity to crypto price and brief covenant/KPI owners.
5. For dual reporters, reconcile the structural gap — keep both carrying bases in the ledger.
6. Document the model and the judgements for audit.

How vendor tools handle the model shift

Cryptio and Bitwave keep cost basis, impairment history, and period-end fair value per asset, so the same ledger can produce a US-GAAP fair-value number and an IFRS cost-less-impairment number. Confirm the tool stores both bases and an audit trail of impairment and remeasurement — the model shift is only as defensible as the underlying record.

How Wag3s helps

Wag3s Ledger maintains cost basis, an impairment trail, and period-end fair value per asset, producing the US-GAAP ASU 2023-08 fair-value figures and the IFRS IAS 38 cost-less-impairment figures from one record — with the reconciliation for dual reporters and the sensitivity data for covenant/KPI owners. See the Ledger product page and the Wag3s for accountants page.

Further reading

• FASB ASU 2023-08: Fair-Value Crypto Accounting
• IAS 38: Crypto as an Intangible Asset
• Crypto Held as Inventory (IAS 2)
• IFRS vs US GAAP for Crypto
• Stablecoin Accounting Treatment
• Crypto Audit Readiness

Sources

• FASB ASU 2023-08, Subtopic 350-60 — fair value through net income replacing the legacy indefinite-lived intangible (cost-less-impairment) treatment — FASB ASU 2023-08
• IFRS Interpretations Committee — Holdings of Cryptocurrencies, June 2019 agenda decision — IFRS.org
• IAS 38 Intangible Assets — cost model (cost less impairment) and revaluation model (active market; increases to OCI)
• IAS 2 Inventories — commodity broker-trader fair value less costs to sell through profit or loss