• Many of the 3,300 older Americans BI heard from recently regret not preparing enough for retirement.
• Financial planners described how younger people could set themselves up now to retire comfortably.
• This is part of an ongoing series about older Americans' retirement regrets.

For many Americans, their golden years can be a time of reflection — and regret.

Since mid-September, more than 3,300 older Americans have shared their retirement regrets with Business Insider through a reader survey or direct emails to reporters. Many said they wished they'd saved more, waited longer to retire, relied less on Social Security, or been more prepared for unexpected financial setbacks, such as a layoff, a medical diagnosis, or a divorce.

"I didn't really think about retirement in concrete terms," one 65-year-old wrote in response to a survey question about how people wished they planned for retirement differently. "I always felt I had time. Now I'm older, wholly unprepared, and without savings or a 401(k)."

We want to hear from you. Are you an older American with any life regrets that you would be comfortable sharing with a reporter? Please fill out this quick form.

BI talked to financial planners, wealth managers, and a personal-finance writer about what younger generations could do to avoid similar financial mistakes. This story is part of an ongoing series.

Start saving and investing as early as possible, even with a small amount of money

The amount of money Americans need to save for retirement can vary based on lifestyle and the local cost of living. In a survey conducted by Northwestern Mutual in January, the average respondent said they thought they'd need about $1.5 million to retire comfortably. Wealth managers and financial planners encourage young people with this goal — or any others — to understand their options, start early, and take advantage of employer-match programs.

Brad Bartick, a wealth planner at Baird, said Americans should begin saving for retirement while they're in college or in their early 20s. "Sobering though it may be," Bartick said, "success may require you to work a second job" or "earn a higher level of training or education."

He suggests people create a "ruthlessly honest budget" so they can identify places to cut spending and ways to pay down high-interest debt or build up an emergency fund. If money is tight, start by putting $25 to $50 per paycheck aside for retirement.

"That may not seem like much, but it is the behavior of saving — the habit, if you will — that is most important later in life," Bartick said. "Additionally, time will reward your having started early."

Bartick suggested that people whose workplaces offer retirement plans contribute at least the maximum dollar amount their employer will match and raise their savings rate as their salary increases.

A fact sheet published by AARP in December cited an estimate based on Census, IRS, and Federal Reserve data that about 56 million Americans in 2022 lacked access to retirement-savings plans at work. The vast majority of those people earned less than $50,000, meaning they may not have much surplus cash to save for retirement.

Judith Ward, thought leadership director and a certified financial planner at T. Rowe Price, said that not every employer clearly communicates which resources it offers, so workers may have to research what's available. She suggests people aim to save 15% of their salary annually.

A 72-year-old who responded to the survey implored people to "always, always, always take advantage of a 401(k) program with your employer and max it out," adding: "My mortgage was too big initially, so I didn't participate in the program for a few years. Big mistake."

Those lacking a retirement-savings plan at work can use individual retirement accounts, which most banks offer. Traditional IRAs offer tax breaks up front. Roth IRAs offer tax-free qualified withdrawals later in life. Bartick said higher earners should consider a Roth 401(k), as they're likely to be in a higher tax bracket later in life and can therefore save more money.

Bartick described investing as "the great equalizer" for young people looking to build a retirement portfolio, adding that most people can open a brokerage account and invest with few barriers. While investing can be lucrative, it involves risk and isn't a surefire way to build wealth.

Rob Williams, a managing director of financial planning at Charles Schwab, said the biggest regret he hears is that people waited too long to invest, missing out on years of compounding interest.

Retirees who didn't save or invest enough often rely on Social Security in their later years. Several older adults told BI they regretted collecting Social Security at 62 instead of 67, when their full retirement benefits would have kicked in.

A 77-year-old survey respondent who wrote that they "took Social Security too early" said they regretted cashing in on their benefit before reaching full retirement age. They added that working a lower-paying teaching job hurt their Social Security income and retirement savings later in life.

Prepare in case of a divorce or a spouse's death

Dozens of survey respondents said they regretted how they handled finances with their spouse. Some said they weren't on the same page about retirement goals, while others said the death of a partner disrupted their carefully laid plans.

Ward suggested married couples consider retirement as a household and analyze finances together, even if spouses keep their accounts separate.

"One of the biggest retirement mistakes I see is when a spouse assumes they share the same retirement vision," Ward said.

Many older adults told BI that a divorce hurt their finances. One 67-year-old survey respondent who got a divorce said they regretted "not having a 401(k) and thinking I would be OK because my husband worked hard all his life."

A study published in the Journal of Gerontology in 2022 found that from 1990 to 2010, the divorce rate for adults 65 and older nearly tripled. A BI analysis of 2023 individual-level Census Bureau data found that divorced retirees had lower average 401(k) balances, less savings, and a lower monthly retirement income than married people.

Elizabeth Ayoola, a personal-finance writer at NerdWallet, said people could protect some of their money and retirement savings with prenuptial agreements. However, prenups typically apply only to money and assets acquired before a couple ties the knot, so they provide less protection if the couple divorces later in life. She said that including major assets or money in a trust could be an effective way to secure wealth in a divorce, and she advised couples to have transparent conversations about finances at all stages of their relationship.

A spouse's death can also have detrimental financial ramifications. Older Americans told BI they struggled to get by without their spouses' paychecks or Social Security income. Others said a lack of a will threw them into a complex legal battle and probate process for their spouses' assets.

Ayoola advised couples to write a will and consider a life-insurance policy.

Build a nest egg to lessen the sting of sudden bills or loss of income

Some older Americans told BI that unexpected expenses or events, like medical diagnoses or layoffs, depleted their retirement savings.

One 78-year-old survey respondent wrote that her husband had heart problems and was recently laid off. She described wanting to reduce their housing costs but being unable to. "We are trapped in a large home living on Social Security and draining savings until it's gone," she wrote.

Dozens of older Americans said a layoff affected their retirement planning. Carly Roszkowski, a vice president of financial-resilience programming at AARP, advised older workers to continue updating their résumés and keep their skills sharp in case they're laid off.

Younger people may want to diversify their skills and prepare to pivot careers. They may also want to build an emergency fund to support themselves or loved ones if they lose their jobs.

"Build relationships with colleagues, mentors, and industry professionals. Networking can open doors to new opportunities and provide valuable support and guidance," Roszkowski said. "Reverse mentorship programs can be effective in organizations to help bridge generational gaps and build understanding and collaboration between different age groups."

Several older Americans said they stopped working or used up much of their savings because of a medical diagnosis. Healthcare researchers advise investing in routine checkups, factoring medical emergencies into nest eggs, and researching government-assistance options.

When a 69-year-old survey respondent and her husband began to struggle with health issues in their 50s and 60s, she said it took a toll on their savings: "Because of our health, I had to cash in my 401(k) for medical expenses at a very early age."

Financial planners told BI that people should analyze the value of their last-resort funding sources, like homes or life-insurance policies, so they know the total of their assets in a costly emergency. Ward said a healthy emergency fund for young people should include enough to cover three to six months' worth of expenses. As people age, they should allocate more: Retirees should have one to two years' worth of income, Ward said.

Sudden healthcare costs can drain emergency funds. Williams advised that people — whether they're young or heading into retirement — research their insurance options so they can reduce out-of-pocket costs.

Doug Ornstein, a director of wealth management at TIAA, argued that people paying high out-of-pocket healthcare costs in retirement "probably would have to live really bare-bones instead of being able to leave their kids some money or be able to do some trips and travel."

Benefits counselors can also help people determine the government aid they qualify for — the money may help them conserve savings and cover bills. The National Council on Aging estimates that up to 9 million older Americans are eligible for government assistance but not enrolled.

Ayoola said that benefits like SNAP or Medicaid could help lower-income people save money over time. "I would tell them to look around for as many government resources as possible to supplement their income," Ayoola said.

Are you an older American with any life regrets that you would be comfortable sharing with a reporter? Please fill out this quick form.