# AS 28: Corporate Assets in CGU Impairment Testing
## What Are Corporate Assets?
Corporate assets are assets that serve multiple CGUs but cannot be directly attributed to any single CGU.
Examples: Head office, admission office building, central servers, HR department assets.
They contribute to the future cash flows of several CGUs but cannot independently generate cash inflows.
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## Case 1 — Corporate Asset Is Allocable in a Known Ratio
Use Bottom-up Approach only:
1. Allocate the corporate asset's CA to each CGU in the given ratio (e.g., 30% to CGU1, 70% to CGU2)
2. For each CGU: Total CA = operating assets + allocated portion of corporate asset
3. Compute IL for each CGU; allocate across all assets (including the corporate asset portion) in ratio of CA
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## Case 2 — Corporate Asset Cannot Be Allocated
Use Two-stage (Bottom-up + Top-down) approach:
### Stage 1 — Bottom-up: Test each CGU without the corporate asset
- Allocate IL to that CGU's operating assets in ratio of CA
### Stage 2 — Top-down: Combine all CGUs + Full Corporate Asset
- Check for additional IL at combined level
- Additional IL → corporate asset absorbs first, then other assets in CA ratio
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## Difference Versus Goodwill
| Goodwill | Corporate Asset | |
|---|---|---|
| Individual RA? | No | Possibly yes |
| Floor on write-down | Can go to zero | Cannot go below its own individual RA |