The rate used to convert future cash flows into today's money, reflecting the time value of money and, in most corporate uses, the riskiness of the cash. One input, quiet authority over the whole investment portfolio.
Few people in an approval meeting could say where the discount rate in the model came from. Yet move it two points and the ranking of every competing project in the portfolio can change.
Last reviewed 3 July 2026 · Free and ungated
Before an investment case is approved, selected senior operators can pressure-test the assumptions the arithmetic rests on.
Get independent perspectivesA discount rate expresses how much less a euro received in the future is worth than a euro today. In corporate investment appraisal it typically reflects the organisation's cost of capital, sometimes adjusted for the risk of the specific project, and it is the rate at which future cash flows are discounted in NPV calculations. A higher rate penalises distant cash flows more heavily.
Because the discount rate compounds over time, it acts as a hidden policy on what kind of organisation you are becoming. A high rate systematically favours initiatives with fast, near-term returns and punishes long-build strategic moves, infrastructure, capability, market entry, whose cash arrives late. That may be the right policy; the point for decision preparation is that it should be a policy someone chose, not an artefact inherited from a template. It is also worth asking whether one uniform rate is being applied to projects with very different risk, an unpriced subsidy for the risky ones.