• A long life is a gift – but the longer you live, the longer you need your retirement savings to last.
  • Some strategies to stretch your savings include continuing to earn income, planning not to drain your savings too quickly, and knowing exactly how much it costs to live.
  • Visit Business Insider’s homepage for more stories.

What if you live to be 100?

It’s not out of the question.

According to the Centers for Disease Control and Prevention, the average American can live to 78.6 years. If you are in good general health and take care of yourself, you may very well live much longer.

And while that means more time with family, more time to see the world, and more time to finish your great American novel, it also means you’ll need enough retirement savings to last for decades.

Read More: Here’s exactly how to figure out when you can retire

No matter when you plan to retire, the best thing you can do to build savings is to start today (or yesterday, if you can manage it). But once you’re getting close to retiring, there are a few strategies you can use to stretch the savings you have:

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1. Keep earning money, even if it isn’t at your primary job

Increasing your working years can have a significant impact on how long your money lasts.

“Even if you can’t continue your current position, consider doing something to bring in money, such as a part-time gig at Uber or contract work,” says David Barson, a certified financial planner and president of Barson Financial Planning in San Mateo, California. Even a small amount of income can have a large impact on how long your retirement savings last.

Read More: 3 financial decisions that will make it harder to retire

2. Plan not to drain your retirement savings too quickly

Barson says one of the greatest determinants of whether your investment portfolio will last until you reach 100 will be how much you take out for spending. If you expect to live until 100, you want to take out as little as possible.

“Try to take out 3% to 4% of your investment portfolio annually,” he says. For example, if you have $100,000 in your portfolio, it’s a good idea to take out somewhere between $3,000 and $4,000 each year.

Note that while 3% to 4% is a good guideline to start with, you’ll want to customize your withdrawal strategy to best suit your savings and your lifestyle.

“Despite proven success for retirees, the 4% rule been criticized as an over-generalized strategy,” reports Business Insider’s Tanza Loudenback. She continues: “Depending on the age you retire and the frequency, size, and type of investments you have, you may require a bigger or smaller nest egg. The earlier you save and invest, the more time your money has to grow and compound. The further out you are from retirement, the more risk your investments can take on, too.”

3. Keep your retirement portfolio in the market

Retirees often make the mistake of getting too conservative, says Barson. The problem with this is that if you’re taking out 3% to 4% of your investment portfolio annually, it’s unlikely that an especially conservative portfolio will generate enough returns to last until you’re 100.

“Your goal is to make sure you get adequate rates of return so your portfolio grows quickly enough to keep up with inflation and taxes over time,” says Barson.

Read More: 7 ways to make your post-retirement life easier if you want to quit your job in 10 years

4. Know exactly how much it costs you to live

As a retiree, it’s vital to get a handle on your basic living expenses versus your lifestyle expenses, which may include dining out, entertainment, and vacations. Barson recommends having your income (pension, Social Security, and investment withdrawal) deposited into a “house” checking account to cover your monthly living expenses. The remainder of your income can be deposited to a “lifestyle account.”

“If you live longer and your portfolio becomes smaller, you can cut back on the lifestyle expenses while continuing to cover the living expenses and stay in that 3% to 4% range,” says Barson.

5. Resist the urge to help your family more than you can afford

Of course, you love your family and want to help them out. However, spending too much on your kids and grandkids can put your own retirement at risk. “Keep in mind your kids have the ability to make a living while that gets harder for you the older you get,” says Barson.

Plus, reports Business Insider’s Tanza Loudenback, kids are most expensive in college and beyond. She cited a 2018 Merrill Lynch survey that revealed 79% of US parents provide financial support to their adult children, contributing to $500 billion spent annually – double the amount they contribute to retirement accounts.

While living a long life is an incredible gift, it can also take a toll on your finances if you don’t plan accordingly.