This paper extends the standard generational accounting methodology by inco
rporating prospective changes in the economic environment, assigning the be
nefits of government purchases to generations, distinguishing between publi
c consumption and public investment, and transforming the generational acco
unts into government budgets. It applies the methodology to the Netherlands
. An expected increase in labor-force participation almost offsets the adve
rse effect of aging on the sustainability of the Dutch public finances. Sin
ce the rise in labor-force participation occurs before the bulk of the agin
g, the government will have to run sizable fiscal surpluses in the next dec
ades in order to create the budgetary room for higher age-related governmen
t expenditures in later decades.