A warehouse damaged by a storm. Software made obsolete by a competitor's product launch. A customer list that stopped generating revenue after a key account left. Each of these events can leave an asset's carrying amount higher than what it can actually deliver, whether through continued use, sale, or the cash flows it generates.
This guide covers impairment of assets under US GAAP for American businesses. The rules differ depending on whether you're testing long-lived tangible assets, finite-lived intangibles, or goodwill. We'll walk through when testing gets triggered, how the test actually works, how to record the loss, and what documentation auditors, lenders, and investors will expect to see.
Key Takeaways
- Impairment occurs when an asset's carrying amount exceeds what it can recover through use, sale, or the applicable accounting test
- Unlike depreciation or amortization, impairment reflects an unexpected or accelerated decline, not a scheduled allocation
- Long-lived assets, goodwill, and indefinite-lived intangibles follow different testing models and timelines under US GAAP
- An impairment loss is a non-cash charge, but it can still affect debt covenants, valuations, and deal terms
What Is Impairment of Assets?
Impairment accounting rests on a handful of terms that get used loosely in conversation but have precise meanings under US GAAP.
- Carrying amount: The recorded balance for an asset, net of accumulated depreciation, amortization, or any prior impairment losses
- Recoverable amount: What the asset can generate through continued use and eventual disposal (this concept applies specifically to long-lived assets under ASC 360)
- Fair value: A market-based exit price between willing participants at the measurement date, not a value specific to your business
- Impairment indicator: An event or circumstance suggesting carrying amount may no longer be recoverable
- Impairment loss: The write-down recognized once the applicable test confirms a loss
Here's where people get tripped up: there's no single universal formula of "carrying amount minus recoverable amount" that applies across every asset type.
Long-lived assets held and used go through a two-stage process (a recoverability test, then a fair-value measurement). Goodwill and indefinite-lived intangibles skip straight to a fair-value comparison. Mixing up these models is one of the more common errors finance teams make.
Impairment vs. an Ordinary Price Dip
Not every decline in market value demands an immediate write-down. A stock market dip, a temporary drop in a comparable transaction multiple, or a short-term demand slowdown doesn't automatically trigger a charge.
Accounting analysis looks at significance, recoverability, how the asset is actually used, and which standard applies. This is why impairment testing exists in the first place: to keep assets and earnings from being overstated, and to give lenders, investors, boards, and auditors a financial picture they can actually rely on.
Illustrative example (hypothetical figures, not a real company): Equipment carries a book value of $10 million. Expected undiscounted cash flows from continued use come in at $9 million, below the carrying amount, so the asset fails the recoverability test.
Fair value is then estimated at $7 million. The company records a $3 million impairment loss, bringing the new carrying amount to $7 million.
US GAAP and IFRS don't use identical models, particularly around reversals. This article focuses on US GAAP. Confirm which framework applies to your financial statements before relying on any of this for a specific decision.
Which Assets Can Be Impaired, and What Triggers a Test?
Three broad categories face impairment analysis, each with its own testing unit.
| Asset Category | Examples | Testing Unit |
|---|---|---|
| Long-lived tangible assets | Buildings, equipment, vehicles, machinery, leasehold improvements | Asset or asset group with largely independent cash flows |
| Finite-lived intangibles | Patents, software, trademarks, customer relationships, capitalized development costs | Individual asset or group, depending on interdependence |
| Goodwill and indefinite-lived intangibles | Goodwill from acquisitions, certain trade names | Reporting unit (goodwill) or individual asset (indefinite-lived intangibles) |
External and Internal Indicators
External indicators commonly include:
- A significant, sustained decline in market value
- Adverse economic or industry conditions
- Higher financing costs or tighter credit availability
- Regulatory changes affecting the asset's use
- Technological obsolescence
Internal indicators often look like:
- Physical damage or deteriorating condition
- Underperformance relative to projections
- Recurring operating or cash-flow losses
- Plans to restructure or discontinue operations
- A decision to dispose of the asset earlier than originally planned
Finance teams shouldn't wait for an auditor to flag these during year-end fieldwork. Monitoring indicators should be part of the regular close and forecasting cycle, with documentation of why specific indicators were, or weren't, considered significant at that point in time.
Why Asset Grouping Matters
When an asset's cash flows aren't independently identifiable, it gets tested as part of a group. ASC 360-10-35-23 directs companies to identify the lowest level of assets with largely independent cash flows. This isn't a mechanical exercise.
In SEC correspondence, one company grouped property, equipment, customer relationships, and developed technology together because those assets generated revenue jointly. Group them too broadly, and a real impairment in one piece can get masked by strong performance elsewhere.
How to Test an Asset for Impairment Under US GAAP
Before running any numbers, confirm which accounting model applies. Long-lived asset guidance, goodwill guidance, and indefinite-lived intangible guidance all follow different sequences.
Here's the process for long-lived assets held and used, which is the most common scenario finance teams encounter:
- Identify the trigger. Document the specific event, the testing date, and the affected asset, asset group, or reporting unit.
- Determine the carrying amount. Pull original cost, accumulated depreciation or amortization, and any prior impairment losses. Reconcile this figure to the general ledger and the fixed-asset or intangible-asset subledger.
- Test recoverability. Compare the carrying amount against expected undiscounted cash flows from use and eventual disposition. If those cash flows equal or exceed the carrying amount, the asset is recoverable and no impairment is recorded.
- Measure fair value, if the asset fails step 3. Use market comparables, appraisal data, replacement-cost information, or an income approach built on supportable cash-flow assumptions.
- Calculate the loss. The impairment equals the excess of carrying amount over fair value, not the shortfall against undiscounted cash flows. These are two different numbers, and mixing them up overstates or understates the charge.
A Worked Example
EY's impairment guide includes a useful illustration comparing two divisions:
| Division | Carrying Amount | Undiscounted Cash Flows | Fair Value | Outcome |
|---|---|---|---|---|
| A | $10M | $12M | $8M | Recoverable, no charge |
| B | $10M | $9M | $7M | Not recoverable, $3M loss |
Division A's fair value actually dropped below carrying amount too, but since its undiscounted cash flows exceeded carrying amount, no loss gets recorded. Division B fails recoverability, so the loss is measured against fair value: $3 million, not the smaller $1 million gap against undiscounted cash flows.
Combine these two divisions into one group, and B's problem disappears into A's strength. That's exactly why grouping at the right level matters.
How to Record Impairment and Assess Financial Statement Impact
Once the loss is measured, the journal entry is straightforward:
Dr. Impairment loss $3,000,000
Cr. Affected asset account $3,000,000
But the ripple effects go well beyond this entry.
Balance sheet: The affected asset declines, total assets shrink, and equity typically falls through the impact on retained earnings.
Income statement: The loss hits the period it's identified in, generally within income from continuing operations before taxes, and within operating income if that subtotal is presented.
Cash flow statement: Impairment is a non-cash charge when recognized. Under the indirect method, add it back when reconciling net income to operating cash flow. The add-back reverses an accounting adjustment, not a cash outflow.
Any future cash consequences (selling the asset, replacing it, or losing related revenue) are separate from the charge itself.
After the write-down:
- The new, lower carrying amount becomes the asset's cost basis going forward
- Future depreciation or amortization runs on this revised basis and remaining useful life
- Reversals are generally prohibited for held-and-used assets under US GAAP, even if value later recovers
Downstream Effects Worth Flagging Early
A non-cash charge still has real consequences. Loop in these stakeholders before the loss surprises them:
- Lenders, if the charge could trip a debt covenant tied to net income or asset values
- Boards and investors, who'll want context on whether this reflects a one-time event or a trend
- Tax teams, since book and tax bases often diverge after an impairment, creating deferred tax considerations
- Deal teams, if the impairment coincides with a pending transaction or purchase accounting analysis
Goodwill, Documentation, and Practical Finance Considerations
Goodwill works differently from every other asset on this list. It isn't separately saleable, and it can't be tested on its own. It arises in a business combination and gets tested at the reporting-unit level, which is typically an operating segment or a component one level below it.
The Current Goodwill Test
Since ASU 2017-04, the old two-step model with its implied-goodwill calculation is gone. The current process is simpler:
- Identify the reporting unit
- Consider whether a triggering event occurred
- Optionally perform a qualitative assessment (often called "Step 0"), asking whether it's more likely than not (greater than 50% probability) that fair value is below carrying amount
- If quantitative testing is required, compare the reporting unit's fair value to its carrying amount, including goodwill
- Recognize any shortfall as the impairment loss, capped at the amount of goodwill allocated to that unit
Deloitte's goodwill guidance confirms goodwill and indefinite-lived intangibles generally require testing on an annual basis, plus whenever a triggering event arises between annual dates. Long-lived assets held and used don't carry that same annual requirement; they're tested only when indicators show up.
Private companies have options here. Eligible private companies can elect to amortize goodwill straight-line over 10 years (or a shorter, demonstrably appropriate life) and test for impairment only when a triggering event occurs, rather than annually.
A separate election under ASU 2021-03 lets eligible companies evaluate triggers only as of each reporting date. These are two distinct elections, and electing one doesn't automatically mean you've elected the other. Confirm current eligibility requirements before assuming your company qualifies.
Building a Documentation File That Holds Up
KPMG's impairment handbook points to a recurring theme in impairment reviews: auditors and specialists need more than a valuation output. They need to see how operational evidence connects to the forecasts, and how the forecasts connect to the conclusion.
A solid impairment file should include:
- The triggering event and why it was (or wasn't) considered significant
- Asset grouping or reporting-unit analysis, with supporting rationale
- Forecasts, discount rates, and other valuation inputs
- Market evidence or comparable transactions used
- Sensitivity analysis around key assumptions
- Internal approvals and the final journal entry
- Financial statement disclosures tied back to the analysis
This kind of documentation matters most when impairment overlaps with something else happening at the company: an acquisition, a refinancing, an audit question, a restructuring, or a pattern of missed forecasts. These are exactly the moments when internal teams are stretched thinnest and a second set of experienced eyes helps most.
This is where Stratum Advisory Partners supports the work. Our Technical Accounting Advisory practice handles impairment analysis, business combination accounting, and the documentation that needs to hold up under audit scrutiny.
Our Financial Reporting, SEC Reporting & Audit Readiness services cover disclosure and external-auditor coordination. Interim CAO & Controller Leadership gives finance teams execution capacity when a transaction or deadline exceeds what's currently on staff. Every engagement is scoped to the specific complexity and timing involved, rather than forced into a generic package.
Frequently Asked Questions
What does "impairment" mean in accounting?
Impairment means an asset's carrying amount exceeds its recoverable or fair value, triggering a write-down. The exact test used depends on the asset type and the specific US GAAP guidance that applies.
What is an example of impairment?
Say a company holds software with a carrying amount of $2 million, but updated projections show it can only generate $1.4 million in fair value. The company would record a $600,000 impairment loss, reducing the asset's carrying value accordingly.
What is the difference between impairment and depreciation?
Depreciation is a planned, scheduled allocation of an asset's cost over its useful life. Impairment reflects an unexpected or accelerated decline in value that requires a separate test and judgment call.
Is impairment loss the same as write-off?
Not quite. Impairment loss is a partial write-down of carrying amount, while a full write-off removes the entire remaining balance when nothing of value is left. Which term applies depends on the specific facts and the guidance involved.
How do you record impairment loss?
The company debits an impairment loss expense account and credits the affected asset (or a related contra-asset account) to reduce its carrying amount. Subsequent depreciation, amortization, and disclosures then get updated based on the new basis.
