Segment reporting: reconcile business units to the group
Reconcile segment reporting to the consolidated group before comparing business-unit performance. Segment measures may exclude central expenses, use management-specific profit definitions and contain intersegment transactions. A strong segment margin cannot be interpreted as the same amount of profit available at group level.
Read the measure, not just the segment name
IFRS 8 covers operating segments and related product, geographical and major-customer disclosures. The issuer’s note explains what it reports and how totals reconcile. Do not assume “segment profit” always means consolidated operating profit under the same cost allocation.
Check the reporting structure across periods. A reorganization can move products between units and make one segment appear to accelerate. Use restated comparatives when provided; if they are absent, explain why the trend cannot be read as a clean operating change.
Hypothetical revenue and profit reconciliation
Assume segment A reports revenue of 150, including 20 sold to segment B. Segment B reports 100, all external. Segment profits are 30 and 15. The group has central costs of 12 and an assumed profit elimination of 3.
| Reconciliation | Revenue | Profit |
|---|---|---|
| Segment A | 150 | 30 |
| Segment B | 100 | 15 |
| Intersegment revenue elimination | -20 | Not automatically the same amount |
| Central costs | — | -12 |
| Other profit elimination | — | -3 |
| Consolidated total | 230 | 30 |
Adding segment revenue gives 250, but external group revenue is 230. Adding segment profit gives 45, but group profit is 30 under the assumed reconciliation. The profit elimination is separately assumed; it cannot be inferred directly from the revenue elimination.
Compare economics on a consistent basis
Record each segment’s revenue scope, profit definition, assets if disclosed, allocation policy, intersegment treatment and reconciliation items. Identify which costs remain outside the segment. A business unit with a 20% margin before shared technology and headquarters expense is different from one bearing those costs.
Check whether acquisitions are included for a partial period. Growth in a segment can result from a newly added business rather than higher activity in the original operations. Currency and product mix can also change geographic or product-level comparisons.
When examining an apparent high-return unit, ask whether working capital, capital expenditure and lease obligations are disclosed at the same level. Profit alone may not reveal the investment required. Do not allocate group assets mechanically by revenue share and present the result as a reported segment return.
Common mistakes include counting internal sales twice, subtracting central expenses twice, treating a renamed segment as a continuous series and comparing differently defined segment EBITDA across companies. A reconciliation table should make every adjustment and uncertainty visible.
This method is limited by aggregation and management disclosure. A reported segment can contain several different businesses, so even a correct reconciliation may not establish the economics of a specific product. Narrow the claim to the available reporting boundary.
A further check on the example
Verify the elimination boundary with an external-sales check. Segment A’s external revenue is 130 after removing 20 internal sales; adding B’s 100 gives group revenue of 230. Then reconcile profit separately because transfer prices and unrealized inventory profit can require different adjustments. A segment can appear profitable from sales to another segment even before the group sells to an outside customer. This makes the consolidation note essential when a thesis concerns end-customer demand rather than activity inside the organization.
FAQ
Is the segment with the highest margin the best business?
Not necessarily. Capital needs, shared costs, risk and internal transfer pricing can change the interpretation. Margin is one observation within a broader analysis.
What if prior segments were not restated?
Avoid a precise growth claim across the change. Describe the break, use compatible subperiods if possible and retain an explicit comparability limitation.