Of course, the expenses you need for your retirement are in
today's dollars. To get a better idea of what they will be when you are ready to
retire, you should adjust them for inflation. Unfortunately, no one knows the
future rate of inflation, so you are on your own to make a guess. The table
below shows how much to multiply your expenses by for different rates of
inflation.
For example, if
you have 15 years until retirement and expect a 5 percent inflation rate, you
should multiply your current expenses by the inflation table factor of
2.08.
A current need of $5,000 per year translates to a requirement of
$10,400 per year 15 years later ($5,000 x 2.08)—just to stay even!
Inflation has been under 4 percent over the last few years.
However, we have experienced periods of double-digit inflation (in the 1980s).
Once you have adjusted your expenses for inflation, you should add them up. That
is how much cash inflow you need in retirement. So where is all this money going
to come from, anyway?