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AARP Bulletin

Retirement Guide

Make Your Money Last

How much can you safely withdraw from your nest egg each year?

En español | How long can your savings last? That's a critical question if you're planning to retire or have already left the full-time workforce. You have Social Security income and perhaps a pension. Maybe you have a part-time job or are collecting rents from a property you own. But sooner or later, you may have to rely on whatever financial nest egg you have accumulated — mutual funds, bank CDs, stocks, bonds and so on. How much can you withdraw each year and still expect your money to last for life?

For financial planners, the gold standard is 4 percent. You can afford to spend 4 percent of your savings in the first year you retire. In each subsequent year, you'd withdraw the same amount that you took in the previous year, plus an increase for inflation. If you stick to that rule and are properly invested, your money should last for at least 30 years and, in most cases, much longer. You should be financially safe.

Why 4 percent?

The 4 percent rule was developed by financial planner Bill Bengen of La Quinta, Calif., more than two decades ago. Looking back, it would have carried retirees successfully through the worst 30-year periods of the 20th century, including those starting in 1929 and 1973 (the year stagflation began). It's too early to know the 30-year outcome for people who retired in 2000, but Bengen says that the rule is working so far.

See also: 5 ways to age proof your finances

The hitch, for many retirees, is in the words "properly invested." Most withdrawal-rate research is based on the longtime performance of leading U.S. stocks, represented by Standard & Poor's 500-stock average, and intermediate-term Treasury bonds. It assumes that you keep half your money in each (or in low-cost mutual funds that track those market indexes). If you diversify — 42.5 percent of your money in large stocks, 17.5 percent in small stocks and the rest in bonds — the initial "safe" withdrawal rate rises to 4.5 percent, Bengen says.

Many retirees wouldn't dream of being that heavily invested in stocks. Some don't trust stocks at all. You're limiting your future, however, if you don't invest at least some of your long-term money for growth. Those who rely entirely on fixed-income investments can safely withdraw no more than 2.5 percent of their savings in the first year plus annual inflation increases, says Wade Pfau, a professor of retirement income at the American College in Bryn Mawr, Pa.

See also: Is an annuity right for you?

Josh Cohen, head of the institutional defined contribution business at Russell Investments in Seattle, has a different approach. He says you can use the 4 percent withdrawal rate while keeping just 32 percent of your money in stocks with the rest in bonds. After 20 years, you should still have a large enough nest egg to buy an inflation-adjusted annuity that supports you for life.

Next page: Is a 4 percent withdrawal enough to pay bills? »

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