A prospective benefits funding method for pension schemes in which the actuarial liability makes allowance for projected earnings. The standard contribution rate is the rate that, if payable over the expected future membership of the active members, would generate their expected benefits related to future service. The value of their future service is treated as the difference between the value of total benefits and the value of past benefits calculated by the project unit method. This means that the attained age method and the projected unit method have the same actuarial liability but different standard contribution rates.