Scenario: token-consumption amortisation
The consumption forecast Illustrative example
The asset is a batch-processing model whose workload is forecast to be front-loaded: heavy use as a backlog is cleared in the first year, then tapering. An illustrative token-consumption forecast of 5:3:2 across the three years is evidenced from the pipeline plan and the historical backlog. Because usage is genuinely uneven and forecastable, a units-of-production profile reflects the pattern of benefit better than straight-line IAS 38 §98.
The units-of-production schedule
The 480,000 amortisable amount is allocated in proportion to forecast consumption, so Year 1 takes the largest charge and Year 3 the smallest.
| Period | Opening | Amortisation | Impairment | Closing | Trend |
|---|---|---|---|---|---|
| Y1 | $480,000 | ($240,000) | - | $240,000 | |
| Y2 | $240,000 | ($144,000) | - | $96,000 | |
| Y3 | $96,000 | ($96,000) | - | $0 | |
| Total | $480,000 | ($480,000) | - | $0 |
Compared with straight-line
Under straight-line the same asset would charge an equal amount each year. The difference is timing, not total: both fully amortise the 480,000 over three years. The units-of-production view carries a lower closing value earlier, matching the earlier consumption of benefit.
| Period | Opening | Amortisation | Impairment | Closing | Trend |
|---|---|---|---|---|---|
| Y1 | $480,000 | ($160,000) | - | $320,000 | |
| Y2 | $320,000 | ($160,000) | - | $160,000 | |
| Y3 | $160,000 | ($160,000) | - | $0 | |
| Total | $480,000 | ($480,000) | - | $0 |
Truing up and the honest caveat
Each period the forecast is trued up against actual token consumption from the ledger, and the remaining charge reprofiled prospectively IAS 38 §104. Whether a consumption profile better reflects benefit than straight-line is a judgement; it is defensible here only because the forecast is evidenced and the unevenness is real. Where the pattern cannot be determined reliably, straight-line remains the correct default.