Abstract: A method, system, and medium for recommending an optimal withdrawal amount, for a given period, from a retiree's portfolio accounts comprised of relatively risky and relatively safe financial assets used to finance retirement. The user supplies information about the retiree's personal characteristics, including age, gender, and health status. Details of the retiree's financial situation are also supplied, including the retiree's total liquid wealth, the current value of relatively risky and relatively safe assets, and any after-tax pension and other annuity income. Risk (standard deviation of return), return (expected rate of return based on a lognormal or other random distribution), or other measurable differentiating characteristics are retrieved for a portfolio comprised of relatively risky assets. A valuation rate is also retrieved.