The Conceptual Shift in Public Sector Impairments
In commercial accounting, an asset is impaired when its carrying amount exceeds its recoverable amount through commercial sale or future cash inflows. Because most public sector assets are held to deliver services rather than generate profits, standard setters had to redesign impairment logic. This led to a structural division codified under IPSAS 21 (Impairment of Non-Cash-Generating Assets) and IPSAS 26 (Impairment of Cash-Generating Assets).
Impairment of Cash-Generating Assets (IPSAS 26)
This standard applies strictly to assets held within State-Owned Enterprises or public units that operate on a commercial commercial baseline. The impairment test mirrors private sector rules (IAS 36):
\(\text{Recoverable\ Amount}=\text{Higher\ of:\ }(\text{Fair\ Value\ Less\ Costs\ to\ Sell})\text{\ and\ }(\text{Value\ in\ Use\ via\ Discounted\ Cash\ Flows})\)
If the carrying value on the books is higher than this recoverable amount, the asset is written down immediately, and an impairment loss is recognized in the income statement.
Impairment of Non-Cash-Generating Assets (IPSAS 21)
This standard applies to the vast majority of core government assets (e.g., schools, police stations, public roads). Because these assets generate no cash inflows, their “Value in Use” cannot be measured using discounted cash flow models. Instead, IPSAS 21 introduces three alternative engineering-accounting models to calculate value in use:
┌──► Depreciated Replacement Cost Approach (Cost to replace asset's remaining service potential)
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Non-Cash-Generating │
Value in Use Models ├──► Restoration Cost Approach (Cost to repair asset back to pre-damaged physical state)
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└──► Service Units Approach (Reduces asset value based on drop in structural output capacity)
- Depreciated Replacement Cost Approach: Measures the current cost to replace the remaining service potential of the asset. The replacement cost is calculated, and then depreciated to reflect the asset’s current age.
- Restoration Cost Approach: Used when an asset suffers physical damage (e.g., a school damaged by a flood). It calculates the estimated financial cost required to restore the asset back to its pre-damaged physical state, recording that restoration cost as the immediate impairment write-down.
- Service Units Approach: Used when the core demand for an asset drops drastically due to demographic shifts (e.g., a public hospital designed for 500 patients that now serves only 50 due to regional depopulation). The asset’s book value is written down proportionally to reflect the permanent drop in physical service utilization.
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