For most people, the word “millionaire,” a term coined in the 18th century, calls to mind images of lavish wealth and extravagant lifestyles. Simply having this much money once represented a ticket to life on easy street. These days, thanks to inflation, cost-of-living increases and lifestyle changes, retiring on $1 million isn’t as carefree. It now requires smart budgeting to ensure this nest egg lasts for a retiree’s remaining years.

Though it does not provide for the sumptuous lifestyle of years past, having $1 million for Social Security benefits to pay the bills each month (see What is the size of the average retirement nest egg?). This is a big reason why the poverty rate for Americans 65 and over is frighteningly high. A retiree with exactly $1 million may not be spending much time at The Breakers in Palm Beach, or the Plaza Hotel in New York. But invested smartly, this sum should ensure he or she can live in a typical U.S. big city – such as Chicago, Los Angeles or Houston – without worrying about poverty or inability to pay the bills.

Let’s take a closer look at two of the key strategies shrewd retirees employ to stretch $1 million throughout the retirement years. One technique is to purchase an bond investments, then withdraw a fixed percentage of that portfolio each year to pay living expenses.

Immediate Annuities

The Good

For retirees who worry about running out of money at some point, an immediate annuity offers perhaps the single most attractive feature of any retirement product: a fixed-income stream that is guaranteed for life – whether the purchaser dies the day after buying the annuity or lives to 120.

Immediate annuities are sold by life expectancy. The longer he or she is expected to live, the lower the monthly payments. For this reason, women, who generally outlive men, receive smaller annuity checks on the same balance.

While life expectancy is used to calculate benefit amounts, the checks do not stop coming once that age is reached and the annuity balance is amortized. Rather, the retiree receives checks for as long as he or she lives. “Purchasing an immediate annuity is like buying a pension. You exchange a lump sum for the insurance company promising to pay you for the rest of your life,” says Georgia Bruggeman, CFP®, Meridian Financial Advisors, LLC, Holliston, Mass.

An annuity is essentially insurance against outliving one’s money, with the insurance company assuming the risk of the individual living too long. A retiree who prioritizes peace of mind in this regard, knowing that his parents and grandparents all lived to 100, should consider an annuity.

The Bad

Annuities feature two distinct disadvantages: tax treatment and illiquidity. While most investment income earned over a long period is taxed at long-term capital gains rates, annuities are taxed at ordinary income rates. The difference between the two depends on the investor’s tax bracket; it might be immaterial, but it might also be significant. For a high-income earner, the top ordinary tax rate, as of 2016, is 39.6%. Long-term capital gains, by contrast, are never taxed at more than 20%.

The other problem with annuities is that owners are effectively limited to their monthly checks. “Buying an immediate annuity when interest rates are still relatively low is not a good idea, especially with the high upfront fees and surrender costs associated with annuities, because the fixed payments will be low and won’t increase even if interest rates go up,” says Elizabeth Saghi, CFP®, president, InAlliance Financial Planning, in Santa Barbara, Calif. What’s more, you cannot withdraw a large chunk from the annuity, such as for an emergency or a major purchase, without incurring penalties.

It comes down to priorities. If having income for life is a bigger priority to a retiree than having access to his or her money in full, an annuity might be the best option. Otherwise, retirees should look elsewhere – or at least not invest all or most of their retirement funds in an annuity. “Any unexpected cash need (health need or otherwise) as well as the potential for future inflation make these products less desirable,” says Evan L. Wolk, managing director, Wolk Financial Management, Inc., Parkland, Fla.

Traditional Portfolio

The Good

Another strategy to make $1 million last through retirement is to place the money in a diversified portfolio and withdraw a set percentage per year, indexing that amount to inflation. Many retirees who use this strategy follow the 4% rule. They withdraw 4% the first year, or $40,000, and they live on this amount. The second year, they take out the same 4% plus the rate of inflation for that year. If inflation were 2%, the second year’s withdrawal would be 102% of $40,000, or $40,800. The third year follows the same pattern, and so forth, with the retiree always taking out 4% plus the accumulated inflation rate. Projecting forward the interest rates and inflation environment of 2016, a retiree can easily make $1 million last more than 30 years using this strategy.

“A globally diversified portfolio allows investors to match their individual risk capacity with their individual risk exposure, provide flexibility in terms of access to their money, potentially provide flexibility in terms of tax exposure and provide potentially higher payout rates than what is provided by products in the insurance market. While a 4% withdrawal rule is a good start, I usually tell clients they can afford 5% to 6% if they are globally diversified with tilts towards the known sources of expected return, such as small cap and value stocks,” says Mark Hebner, the president and founder of Index Fund Advisors, in Irvine, Calif., and the author of “Index Funds: The 12-Step Recovery Program for Active Investors.”

The Bad

The main downside to the traditional portfolio strategy is, unfortunately, no method exists to project with certainty future market returns or inflation rates. The years following the bear market or a period of unusually high inflation – the 1970s featured both – causes a retiree’s $1 million to evaporate much more quickly if it is invested using the strategy outlined above.

The Bottom Line

Investing $1 million in a traditional portfolio and taking yearly withdrawals gives a retiree more flexibility with money than purchasing an annuity does. The returns from mutual funds, historically, have been stronger than annuity returns. And in a low interest rate environment, such as the current one, annuities are going to have less generous payout rates than in times when interest rates are higher.  On the other hand, an annuity offers a retiree one feature a traditional portfolio does not –  an iron-clad guarantee he or she will never outlive his or her money.