In November 2026, the OECD reported that annual consumer-price inflation across its member countries rose to 4.5% in September, from 4.3% in August. Its 6 November statistical release identifies energy as the main source of acceleration, with energy inflation reaching 17.4%, while core inflation remained broadly stable at 3.7%.

These figures describe consumer prices in a past reference period; they are neither medical-cost trends nor forecasts of insurance renewals.

Rewards teams need to understand pressure on employees’ purchasing power, but a multinational aggregate cannot determine the appropriate decision for every workforce. Begin with the country and period relevant to the employees concerned. Then ask which household costs are driving the discussion and what the employer is trying to address. A salary review, an assignment allowance and a health-plan renewal involve different commitments and evidence.

Even where a common group framework is useful, the supporting assumptions should remain visible. A centrally selected inflation figure can create apparent consistency while concealing differences between locations. Finance should be able to trace a proposed increase to the local data used and understand any judgement added by management. The purpose is to improve a decision, rather than to imply that one statistical measure contains the answer.

Keep health plan costs on their own evidence

For insured or self-funded medical benefits, ask for a reconciliation of the factors behind the renewal proposal. That review might examine service prices, utilisation, population changes and benefit design where the available data permit it. A consumer-price series can provide context, but it does not replace analysis of the covered claims. Nor does a medical trend assumption automatically describe an employee’s overall cost of living.

A useful management paper can put the two assessments alongside one another without merging them. Explain the proposed compensation response and the proposed benefits response, with their different data and decision dates. If one source is preliminary or a forecast, label it. This makes it easier for an approving committee to understand why two percentages differ without assuming an error or negotiating solely from the lower number.

Check allowances before they become permanent assumptions

International mobility adds another set of questions. An allowance should be reviewed under the policy and data used to establish it. Check the reference location, review frequency and any exchange-rate assumption before drawing conclusions from an aggregate inflation change. A temporary adjustment should have an owner and a review date so that its continuation receives the same attention as its introduction.

Communications should explain which part of the package responds to which need. Employees may experience a sharp increase in an essential expense even when the employer uses a broader index for a different purpose. A clear explanation can acknowledge that difference without promising full compensation for every price movement. Give employees a route to raise a factual error in the data applied to their case.

Bring the assumptions to the approval discussion

Boards and remuneration committees can ask management to distinguish observed prices from the assumptions used for the next budget period. A sensitivity analysis can show what would happen if a key cost pressure persists, while making clear that the scenario is not a forecast. The paper should identify which decisions can be revised and which create an ongoing contractual commitment.

The committee can also ask whether proposed support reaches the population the decision is intended to help. That is a design and affordability question requiring workforce evidence; it cannot be answered from a country average alone.

The OECD release is therefore a timely prompt to review the quality of the evidence behind rewards decisions. Start with the country-level assumptions, reconcile the explanation of medical costs separately and check that allowance reviews follow policy. That produces a more useful conversation about employee support and affordability than applying the same inflation figure to every element of the package.

Sources

OECD — Consumer Prices statistical release updated 6 November 2026