Equivalent Annual Cost (EAC) is a capital budgeting metric that converts the total cost of owning and operating an asset over its entire useful life — including initial investment, annual operating costs, and salvage value — into an equivalent uniform annual cost, enabling fair comparison between assets with different useful lives on a per-year basis. EAC is calculated by determining the Net Present Value (NPV) of all costs over the asset's life and then converting this to an equivalent annual annuity using the appropriate discount rate. It is particularly useful for comparing mutually exclusive capital expenditure options — such as choosing between a cheaper short-lived machine and a more expensive long-lived machine — where direct NPV comparison would be misleading due to different time horizons. For financial analysts and CFOs at companies tracked on Ventura Securities, EAC analysis is a valuable tool for optimising equipment replacement decisions, fleet management, and long-term capital allocation across assets with varying lifespans and cost profiles.
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