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Equivalent annual benefit

Equivalent annual benefit divides the project's NPV by the annuity factor for its life and discount rate. It expresses the value created as a level annual amount, which can help compare alternatives of unequal lives when repetition and comparable service assumptions are justified. Unlike equivalent annual cost, it incorporates both receipts and payments. The method is not automatically appropriate for one-off opportunities, changing replacement technologies or projects with different constraints. Compare benefits on a consistent risk, currency and price basis, and state why an annual comparison fits the decision.

Worked example

An investment has NPV $30,000 over four years. At 10%, its annuity factor is 3.169865, giving EAB $30,000/3.169865 = approximately $9,464.13 a year.

Common mistake

Applying EAB rankings to unrelated one-off projects without checking whether annualised comparison represents the actual choice.

Where it appears in your exams

QualificationExamRelationshipPeriod
ACCA FM Direct September 2026–June 2027