If you can limit your yearly withdrawals to 4% of your retirement nest-egg, your funds should last throughout your retirement.
All you need to do is figure out how much money you'll be spending each year, calculate how big your retirement fund has to be to keep your spending amount below 4%, and then keep on saving until you reach the appropriate retirement fund size.
Sounds good, right? But wait...there's a catch.
It's not actually a rule. It's just one conclusion from a much broader study done by three professors at Trinity University.
But reality is never that simple. Remember the study I mentioned? The 4 percent rule refers to one (just one!) retirement scenario where a retiree withdraws money each year from their nest-egg for at least 30 years; a nest-egg filled with stocks and bonds.
4% is the amount of the withdrawal in the first year of retirement.
The study assumed that the withdrawal percentage would increase with the cost of living, based on the consumer price index or CPI.
Using a number of different stock/bond mixes, the study concluded that "withdrawal rates of 3% and 4% are extremely unlikely to exhaust any portfolio of stocks and bonds" before the end of the 30 year period.
Most people stop investigating at this point. But wait, there's more.
Ladies and gentlemen, we have a disclaimer from the authors!
Which means the general feeling is that this rule is "safe". As members of the Safe Investing community, you and I know that no investment or strategy is safe.
As pointed out in the article "Will the year 2000 retiree destroy the 4% rule?" over at www.investingforaliving.us:
At this point, you may be wondering why investment returns are an issue. Think of each withdrawal you make as a loss. You no longer have that money to invest. And each year, that loss gets larger because of inflation.
Remember this chart?
Time and Rate of Return Required to break-even after a One Year Loss of 7%
This is why investment returns are so important; if they're negative. You have to make more with less.
According to Kiplinger Magazine, saving $1,000,000 dollars for retirement means you'll be able to get about $40,000 per year in income.
Saving $1 million dollars is no easy task to begin with...but it's not just about saving the money. As mentioned above, you also have to invest it properly. The article also stated:
With all the people I know who have had their 401k matches suspended, I'm guessing Kiplinger's isn't the only one who thinks retirement is a luxury...if you can call living on $40,000 (so maybe $30,000 after taxes) luxurious.