Should I use period or cohort life expectancy for my retirement plan?

Use cohort figures if they are available for your country and birth year. They account for expected mortality improvements. Period figures provide a safe lower bound but will understate how long you might live if health continues to improve.

What is the right retirement age to set in a life clock?

Set the clock to your planned retirement age, then look at the weeks or hours left from that point forward. That is your planning horizon. If you are already retired, set it to your current age.

How much longer should I plan for if I am in good health?

People in the top quarter of health at 65 can expect to live several years longer than the population figure. A common planning assumption is to add 3 to 5 years to the standard number for your age and sex.

Does the life expectancy gap between men and women affect my pension choices?

Yes. If you are a woman, your retirement savings must last longer than a man's at the same age. If you are a man with a female partner, the joint plan must cover her longer horizon, not yours.

Why do financial advisers sometimes recommend planning to age 90 or 95?

Because planning to the midpoint means a 50 percent chance of running out of money. Planning to age 90 or 95 covers the tail of the distribution and reduces longevity risk to an acceptable level for most people.

Can a life clock help me decide when to take a pension?

It can help you visualise the number of years you need to fund. A pension that starts at 65 and pays for 20 years is very different from one that starts at 65 and pays for 30 years. The clock makes those differences visible in weeks and days.

Life Expectancy and Retirement Planning: How Long Will Your

The single most useful number for retirement planning is not how long you have lived, but how many years you have left — and that number is almost certainly larger than you think.

How many years of retirement will you actually need to fund?

At 65, a man in the United Kingdom can expect roughly 18 more years. A woman of the same age, roughly 21. Those numbers come from national life tables, not from birth headlines. They are the single most important input to any retirement plan. Yet most people, and many financial advisers, start from the wrong baseline.

The common mistake is to think in terms of a fixed retirement length. "I will retire at 65 and live to 85" is a guess dressed up as a plan. Half the people who reach 65 will live longer than the population figure for their sex. Some will live much longer.

The core question is not "How old will I be when I die?" It is "How many years of income do I need to fund, and what is the probability that I will need more?"

Why remaining life expectancy matters more than the at-birth figure

Life expectancy at birth in a country like Japan or Switzerland sits around 84 years. Deduct 65 and you get 19 years. That figure is wrong for a 65-year-old. Wrong because infant and childhood mortality pull down the at-birth number. Someone who has already survived to 65 has cleared the high-risk early years. Their remaining horizon is longer than the at-birth number minus their current age.

For planning, the relevant number is always the figure at your current age. A 70-year-old has about 25,567 days, or 613,608 hours, left at the global mean. At 80, about 29,219 days, or 701,256 hours. At 85, about 31,046 days, or 745,104 hours. These are not predictions. They are the statistical framework within which you must plan.

What happens if I outlive my savings?

Longevity risk is the name for the possibility that you live longer than your savings. It is the mirror image of dying too young. For an individual, the risk is binary: either you run out of money or you do not. For a population, it is a probability distribution.

Annuities exist to pool this risk. When you buy an annuity, the insurance company takes on the longevity risk for a large group. People who die early subsidise those who live long. That is why annuity rates are higher than the risk-free rate of return: the insurer is charging for bearing the tail risk of extreme longevity.

The argument against annuities is that they are illiquid and often expensive. The argument for them is that no other financial product can guarantee an income for life. A retiree who does not annuitise is effectively self-insuring against longevity risk. That means the savings pot must be large enough to survive the tail: the 10 percent or 5 percent chance of living into the late 90s.

A 65-year-old woman in a high-income country has roughly a 1 in 4 chance of living to 90. At 90 years, the global mean lifespan is about 32,872 days, or 788,928 hours. Planning for the midpoint is planning for a 50 percent failure rate. That is not a plan.

How financial advisers use life expectancy (and why they often get it wrong)

Financial planners use remaining figures to frame savings adequacy. The standard approach: take a client's current age, look up the number from a mortality table, and project spending needs out to that age or a few years beyond.

The problem is that many advisers use period life expectancy, which assumes current death rates continue unchanged. Period figures at 65 in the United States might be 19 years for a man and 22 for a woman. But if health improves over the next two decades, as it has for most of the past century, the actual cohort number will be higher. Someone retiring today may experience lower death rates at 75 than the period table assumes for 75-year-olds today.

Cohort life expectancy accounts for projected improvements. It is harder to calculate and less widely published. The difference can be two to four years of additional lifespan for someone retiring at 65. That difference translates directly into required savings.

A second common error: using a single figure for both members of a couple. That mistake can be catastrophic.

Whose life expectancy should a couple use?

Women live longer than men, on average, by about four to six years in high-income countries. For a heterosexual couple, the woman is likely to outlive the man. The retirement savings must support one person for the woman's remaining horizon, not the man's.

The relevant number for a couple is the longer-lived partner's figure. If the man is 65 with 18 years left and the woman is 63 with 22 years left, the pot must last at least 22 years, and probably longer. The woman may inherit the entire pot when the man dies.

Many couples plan as if both will die at the same time. They do not. Widowhood is a near-certain event for married women. The financial consequences are severe: reduced pension income, higher housing costs as a single person, and the loss of economies of scale. A retirement plan that does not explicitly model the longer-lived partner's solo years is incomplete.

The same logic applies to same-sex couples. Use the longer of the two individual figures. If both partners are women, both have above-average longevity. Plan for the longer-lived one.

Healthy life expectancy vs total: planning for care costs

Total life expectancy counts every year lived, including years with disability, chronic illness, or cognitive decline. Healthy life expectancy (HALE) counts only years lived in full health. The gap between the two is the period when care needs are highest.

Globally, the gap sits around 8 to 10 years. An average person spends the last decade of life with significant health limitations. Those years are expensive. Care costs, whether paid to a formal provider, a family member, or through lost income from a caregiving spouse, can consume a large fraction of a retirement portfolio.

Retirement planning that ignores the healthy-life gap assumes spending will drop in later years because the retiree is less active. In reality, spending on medical care, home modifications, and paid assistance often rises sharply in the last years of life. The "go-go, slow-go, no-go" framework captures this: the go-go years have high discretionary spending; the slow-go years have lower spending but higher medical costs; the no-go years have the highest care costs and the lowest discretionary spending.

A plan that uses total life expectancy but budgets as if all years are go-go years will underfund the final decade.

How a life clock sharpens your financial timeline

Set a life clock to your current age, and it shows the time you have lived and the time left if you reach the mean figure for someone your age and sex. Set it to your planned retirement age, and it shows the horizon from that point forward.

The purpose is not to predict your death. It is to make the abstract concrete. A 65-year-old with 20 years left has about 1,043 weeks. That is a finite number. It can be divided into a spending plan, a care plan, and a legacy plan.

The time horizon for retirement planning is not "until I die." It is "until the last possible year I might need income." For a 65-year-old couple in good health, that could be age 95. That is 30 years. That is about 1,565 weeks. That is the number you need to fund.

Anyone who is retired or nearing retirement should calculate their remaining figure at their current age, not the at-birth number. Couples should plan for the longer-lived partner's full horizon. Both should add a buffer for the healthy-life gap. Annuities, if used, should be considered as a hedge against the tail of the distribution, not as a bet on the midpoint.

The default advice, "plan to 85 and you will be fine," is wrong for anyone who is healthy, female, or part of a couple. Plan to 95 instead. The extra savings required are the price of not outliving your money.