Lifetime income, say Vs, may be defined as Vs= ΣTt=sctytwhere ytis income (earnings) at age t, ctis some discount rate and s is the age an individual enters the labor force. Obviously, yti.e., the income path over the individual's span of active life, plays a crucial part in the calculation of Vs. Mostly graphical methods have been employed for estimating the income age profile. This article presents a statistical framework for estimating lifetime income. Moreover, the first and second moments of the distribution of lifetime income are derived, and these results are applied to Dutch income data.