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Practice Management

Why advisors should use age-banding to plan for retirees’ spending levels to flex and adjust.

This Practice Management article is intended for financial advisors only (registered representatives of broker/dealers or associated persons of Registered Investment Advisors).

Research around the spending habits of retirees is debunking old myths. Rather than assuming a stable standard of living throughout retirement, this growing volume of research looks more directly at not just the composition of a retiree’s spending goals but also at how expenses change as the retiree moves through different age bands.

Projecting retirement expenses using an age-banding approach may allow for a more nuanced and accurate representation of how spending will change over time. The ramifications cannot be overstated; indeed, retirees may not actually need to save as much or accumulate as large of a nest egg to retire in the first place.

Why Age-Banding?
The traditional view of retirement spending is that the person who no longer works will aim to generate enough income to replace their former earnings, and maintain their existing standard of living. Of course, some aspects of that standard of living itself will no longer be necessary—from taxes paid on employment wages to the savings that were being made to generate that retirement nest egg, and perhaps a handful of expenses that aren’t relevant anymore.

Thus, it may be necessary to replace only 70–80% of pre-retirement income in retirement itself: the so-called “replacement ratio.” Nonetheless, whatever the actual expenses are that need to be supported in retirement, the assumption is simply that the goal is to support them at a continuing rate—for one’s lifetime.

Early approaches to securing retirement income were all various forms of pensions and lifetime annuities, which provided a fixed, ongoing payment for life, made annually or perhaps monthly. With the inflation of the 1970s, though, combined with ever-increasing life expectancy, it became clear that the purchasing power of a fixed pension in retirement could be severely undermined over time, especially for retirees who might live decades after they leave the workforce.

Thus, by the 1990s, the prevailing view—as exemplified by Bill Bengen’s 4% rule research—was that retirees should maintain retirement cash flows that weren’t just level but also adjusted annually for inflation. This simply meant sustaining a level, real, inflation-adjusting standard of living.

At the same time, a growing base of data on retirees in their later years began to reveal that the assumption of stable spending may not actually offer an accurate reflection of reality. Instead, retirees appear to shift their spending behavior over time, in a manner that Michael Stein (who wrote The Prosperous Retirement) first dubbed the three phases of retirement: the “Go-Go” years, or the active first decade of retirement, largely a continuation of the pre-retirement lifestyle; the “Slow-Go” years, referring to the less active second decade of retirement, as health and energy begin to decline and some discretionary spending slows; and the “No-Go” years, comprising the final decade of retirement, as most discretionary lifestyle spending stops altogether, supplanted by healthcare expenses.

In essence, the idea is that spending behavior in retirement is not pegged to a consistent, level amount in nominal or real terms, but instead is distinct across several age bands in the first, second, and third decades of retirement.

During each of those bands, retirees shift not just the level of their retirement spending but also the composition thereof. For instance, Somnath Basu suggested that spending in categories such as basic living, leisure, health care, and taxes may be substantively different—in different ways—across each age band.

And as it turns out, subsequent research into the actual spending patterns of retirees across each age band is beginning to support the age-banding hypothesis.

How Retirement Spending Declines
For more than 30 years, the U.S. Bureau of Labor Statistics has gathered information annually on household spending behavior through its Consumer Expenditure Survey (CES)—with select data available going back to the 1970s and early 1960s—providing a rich database to analyze consumer-spending behaviors across different age cohorts over time. And when researchers delve into the CES data, a clear trend emerges: retirement spending declines persistently over time.

For instance, a study in The Journal of Financial Planning by Ty Bernicke found that, based on the 2002 CES data, for every five years older a retiree was, his/her spending was on average about 15% lower. The cumulative impact meant that those in their late seventies were spending less than half of what those in their late fifties were spending.

Notably, though, the Bernicke study looked at a cross-section of people in the same year to assess the differences in spending by age, rather than actually tracking a cohort of people to see how their spending changed over time. When, however, a subsequent study by the Center for Retirement Research looked at multiple age cohorts in the CES data, they still found that retirement spending dropped persistently, by about 1% per year, as a cohort ages—even after controlling for a number of other factors.

The challenge of cohort analysis is that it still looks only at groups of people who were born in a similar grouping of years, and checks to see how the group as a whole changes its spending behavior over time. It doesn’t actually track the spending behavior of specific individuals, and how it changes over time.

A follow-up study by David Blanchett of Morningstar, though, used the Rand Health and Retirement Study, which actually does provide some longitudinal data on retiree-spending behaviors over time. When Blanchett looked at the available data—which, admittedly, was somewhat limited by the sample size—a slightly different pattern emerged: Real spending declined a little at the beginning of retirement, accelerated its decline in the middle retirement years, and then slowed its decline again in the final decade, in a pattern that was dubbed the “retirement spending smile.”

Notably, the chart above graphs the real—that is, inflation-adjusted—change in spending, showing that real spending declines by an average of about 1% per year in the first decade of retirement, 2% per year in the second decade, and about 1% per year again in the final decade. Given that inflation itself averages more than 2% per year through most of the years in the data set, though, this still means that retirees were maintaining or slightly increasing their nominal spending each year—just by less than the annual amount of inflation.

Spending Pattern Differences
A key aspect of the Blanchett retirement spending smile is that while real spending declines in retirement at a rate that is slower, then a bit faster, then a bit slower again, it’s not just that the absolute level of real spending is changing. The spending pattern itself is largely a reflection of shifts in what retirees are spending on, as they age.

For instance, using the CES data, Blanchett looked at the composition of spending throughout an individual’s lifecycle from age 25 to 85, and found that in the retirement years, there are distinct shifts in the composition of retirement spending. As retirees age, some spending categories steadily decline—for example, insurance premiums, as life insurance, disability insurance, and, eventually, automobile insurance become less necessary; transportation, as the household consolidates to one or even no cars; housing, as spending on new furniture and other household goods slows down; and clothing. Other categories, meanwhile, rise—most notably, health care.

A similar study by J.P. Morgan, which analyzed spending patterns based on how its clients spend using consumer credit and debit card data, and focused on more affluent households—those with $1 million to $2 million of investible assets—similarly found a version of the retirement spending smile, albeit a more lopsided one, wherein real spending clearly decreased in the early retirement years, but appeared to merely level off in the later years, as healthcare spending in particular ramped up for those in their eighties. Still, though, retirement spending was down by about 1% per year through the first 20 years of retirement.

One notable aspect of these results is that while healthcare expenses do ramp up in the later years, healthcare expenditures overall are still only a relatively moderate percentage of the retiree’s total spending, falling roughly within the 15–20% range, and not even fully replacing the decreases in spending in the other categories, such that total spending in a retiree’s eighties is still more than 20% below where it was at the beginning of retirement.

In other words, healthcare expenses really do rise in the later years of retirement, but not enough to raise total spending in those later years.

This speaks to the relative effectiveness of Medicare in holding a household’s healthcare expenditures relatively stable in retirement; while it may cost upward of $5,000 per year for an individual, or $10,000 per year for a couple, to maintain Medicare Part B premiums, plus Part D and a Medigap Supplemental policy—from that point forward, the bulk of the expenses are relatively modest co-pays, such that healthcare spending rises only moderately in the final years.

And, in fact, since the data on health care would include all such expenditures—both for medical needs and for long-term care expenses—the spending for medical-related healthcare expenses appears to be even more stable, as a material portion of the later years’ increase is likely attributable to a small subset of consumers with larger, uninsured long-term care expenses.

Implementing an Age-Banding Approach
So, how might the research on age-banding retirement spending be incorporated into planning projections for clients? The first option would be simply to reflect the tendency for retirees to spend less as they age and move through the Go-Go, Slow-Go, and No-Go years.

For instance, spending could be projected to decrease by 10% each decade in retirement—that is, cutting spending by 10% at age 70, another 10% at age 80, and yet another 10% at age 90. The middle decade could be cut by even more, such as by 15% or even 20%, to reflect Blanchett’s retirement spending smile. And that spending decreases even faster in the middle Slow-Go decade.

Notably, though, while the research suggests these spending decreases as people move across age bands, for any particular individual, the shift is more likely to be driven by a health-related event—for example, Mom falls and breaks her hip, and from that point forward, she doesn’t want to travel or eat out much—rather than reaching an arbitrary age threshold.

Thus, in real life a spending cut might happen to occur promptly as someone moves across an age band, but it may well be off by several years as well. Consequently, an alternative approach also might just be to project retirement spending to increase by 1% less than the expected rate of inflation—for example, 1% less than the inflation rate being used to inflate other fixed-income streams—such that real spending decreases by 1% per year.

This will still cumulatively reflect the likelihood of anticipated spending changes, without making the plan unusually dependent on a big change in a particular future year that might not actually occur at that exact time.

Of course, the reality is that the decreases in retirement spending over time are less a function of absolute reductions in spending across the board and more a result of significant spending decreases in some categories—mostly coming from leisure and discretionary spending—with less-than-full substitutes in other categories, such as healthcare and medical expenses.

Thus, a better implementation of Basu’s age-banding approach might break expenses into more concrete categories, such as his suggested “Basic Living” (essentials), “Leisure” (discretionary), “Health Care,” and “Taxes.”

This makes it feasible to not only adjust different categories of spending at different rates as the retiree ages but also to reflect the different inflation rates that apply to each—especially given how healthcare expenses inflate higher than other expenses.

For instance, spending on essentials might be projected to decline at 10% per decade in real dollars, but leisure could fall by 20% per decade, and health care might be projected to rise by 10% per decade. In addition, health care could be projected with a higher inflation rate than the other categories.

In turn, both the starting levels of the retiree’s budget and the projected adjustment factors could then be specified to the individual situation. For instance, the J.P. Morgan study’s authors found that almost 40% of retirees were “foodies,” who spent disproportionately on food and beverages; about 30% were “homebodies,” who tended to spend more on housing-related goods; and about 5% were “globetrotters,” who engaged in a high volume of travel.

Accordingly, globetrotters might have their own “travel” category that starts out much higher as a percentage of spending, but falls off the most in their eighties, when presumably they wouldn’t travel as much anymore. Meanwhile, the homebodies might have a larger allocation to basic living expenses that inflate more slowly, but decline very little.

Though notably, retirees may not be very good at projecting their own lifestyle changes in the later years of retirement—a version of the so-called “end of history illusion”—and thus may need guidance from their advisor about what kinds of spending cuts to project in various categories in later years.

Doing this kind of projected retirement spending also may be more difficult with today’s planning software, simply because most of the tools weren’t built to handle multiple different spending categories, each with its own inflation rates and age-banded spending cuts. Though in theory entering each spending category as its own goal may be feasible in most goals-based planning software platforms to at least get close, it still may not be possible to project varying inflation rates over time. Cash flow-based planning software, meanwhile, tends to be granular enough to allow the individual cash flows to be projected, though it may be time-intensive to program them.

Nonetheless, while research studies vary as to what the exact magnitudes of spending declines are in various categories—and the age-banded thresholds when they apply—the data from both the BLS’s CES and the RAND Health and Retirement Study both support the idea that retiree spending does not remain stable throughout retirement. It clearly declines, at least to some extent, which can affect everything from how much is considered safe to spend at the beginning of retirement— before these subsequent adjustments apply—to how much the prospective retiree needs to retire, and how much he/she must save as an accumulator to get there.

This all means that projecting any reasonable decrease in retirement spending in later years is arguably a better baseline for retirement planning than the current default of assuming no decreases at all.

—by Michael Kitces
Michael Kitces, a Financial Planning contributing writer, is a partner and director of wealth management for Pinnacle Advisory Group in Columbia, Maryland; co-founder of the XY Planning Network; and publisher of the planning blog Nerd’s Eye View.


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