Quick answer
Amortization systematically allocates the amortizable amount of a finite-life intangible asset over its useful life. It recognizes the resource’s consumption over the periods that receive its benefit; it does not remeasure the asset to market value.
A software licence, patent, or contractual right can provide benefits for several periods even though its cost is paid at one time. Once a recognized intangible asset is available for use and has a finite useful life, amortization spreads the amount subject to allocation over the expected benefit period or output.
Amortization is the intangible-asset counterpart to depreciation: both allocate cost. Indefinite-life intangibles are not amortized while that assessment remains supported; see Intangible Assets for the classification.
Components of amortization
- Amortizable amount
- The asset’s recorded amount subject to allocation after considering any residual value supported under the applicable requirements.
- Useful life
- The period of time or units of output over which the entity expects to consume the asset’s economic benefits, subject to legal, contractual, renewal, technological, and commercial limits.
- Amortization method
- The pattern used to allocate the amortizable amount. It should reflect how the benefits are expected to be consumed; straight-line allocation is used when an even pattern fits the supported facts.
- Accumulated amortization
- The total amortization recorded to date. Presenting it against the asset’s cost preserves both the original recorded amount and the portion already allocated.
Amortization begins when the asset is available for its intended use, not simply when cash is paid or legal ownership is obtained. The method and period follow the expected consumption of benefits and the limits supported by the asset’s circumstances.
For straight-line amortization, divide the amortizable amount by the useful life, using consistent units of time. The charge is usually an expense, recorded by debiting Amortization Expense and crediting Accumulated Amortization. If the consumed benefit instead qualifies as part of producing another asset, the debit enters that asset’s cost rather than current expense.
Purchase and amortize a three-year software licence
Harbour Graphics pays $18,000 for a separately acquired software licence that is available for use on the first day of its financial year. Under the stated facts, the licence meets the recognition requirements, has a three-year finite useful life, no residual value, and an even pattern of benefit.
$18,000 ÷ 3 years = $6,000 amortization per year
The licence creates an $18,000 intangible asset and uses $18,000 cash. Over the first full year, $6,000 of its cost is consumed. The annual adjustment therefore increases Amortization Expense and Accumulated Amortization by $6,000.
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| Account | Debit | Credit |
|---|---|---|
| Software Licence | 18,000 | |
| Cash | 18,000 |
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| Account | Debit | Credit |
|---|---|---|
| Amortization Expense | 6,000 | |
| Accumulated Amortization — Software | 6,000 |
Software licence after one year
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| Statement | Account | Effect | Timing |
|---|---|---|---|
| Income statement | Amortization Expense | Expense increases by $6,000 | For the first year |
| Balance sheet | Software Licence, net | Cost of $18,000 less $6,000 accumulated amortization gives a $12,000 carrying amount | At year end |
| Cash flow statement | Amortization | The amortization entry has no current cash effect; the separate licence purchase used cash | Purchase date versus later allocation |
- Income statement
- AccountAmortization Expense
- EffectExpense increases by $6,000
- TimingFor the first year
- Balance sheet
- AccountSoftware Licence, net
- EffectCost of $18,000 less $6,000 accumulated amortization gives a $12,000 carrying amount
- TimingAt year end
- Cash flow statement
- AccountAmortization
- EffectThe amortization entry has no current cash effect; the separate licence purchase used cash
- TimingPurchase date versus later allocation
Estimate review and impairment
Useful life, residual value, and the consumption pattern are estimates, not facts fixed forever at acquisition. A change in one of those estimates affects current and future allocation rather than restating expense already recorded. See Accounting Policies, Estimates & Errors for the prospective treatment of estimate changes.
Amortization also does not replace an impairment assessment. Amortization allocates a finite-life asset’s amortizable amount over its useful life. An impairment assessment determines whether the remaining recorded amount is recoverable under the applicable requirements.
Common errors
- Amortizing an intangible asset before it is available for use.
- Treating an indefinite useful life as a permanent conclusion that never needs reassessment.
- Choosing straight-line allocation automatically when another supportable benefit pattern better represents consumption.
- Treating accumulated amortization as a measure of lost market value.
- Continuing the original schedule without considering a supported change in useful life, residual value, pattern, or impairment.