Don’t Save the Best

A year off now has a price you can read: a smaller pile at 67 or a few extra work-years. The page prints both, so you can see whether it fits.

Michael Finke studies retirement for a living. When his sabbatical came, he took the short version. A friend did the math out loud.

Finke's university offered a choice, as he describes it: "a semester off and get paid your full salary for it… or we can take two semesters off and get paid half of our salary." His answer: "as a finance person my response was oh of course I'm going to take one semester off and get the full salary. That's a no-brainer." His friend, a professor of graphic design, saw it another way: "You could have taken essentially 15 months of retirement in your 40s instead of in your 70s."³

Finke came around to that view. "A year in retirement is probably worth less to me than a year when I can physically enjoy it," he says, and he names the cost in the same breath: "Now you won't have as much money saved for retirement."³ That's his view from an interview, not a research finding. This page prints that cost.

The usual plan puts the long stretch of free time at the very end, after 67. This page asks a smaller question. What does one year of that free time cost if it comes now instead?

The price isn't zero, and it isn't ruinous. Money that stays invested earns returns on its returns, so a dollar pulled out early misses more years of growth than a dollar pulled out late.¹ The tool puts a number on that miss, using its defaults: 32 years old, $70,000 saved, $14,000 a year going in, and a $40,000 year off paid from savings.^M

Figure 6.1. Same Saver, Two Piles

Without the year off, the pile reaches $2,744,010 at 67. With it, $2,185,788.^M That's $558,222 less at the finish, from a $40,000 year. The gap is big because the $40,000 left at 32 and missed 35 years of compounding. That's the honest price of an early year, and this page shows it plainly.

Figure 6.2. Two Ways to Pay

The price can be read two ways. Stop at 67 and the pile is 80% of what it would have been. Keep the same pile and it takes about 4 more years of saving at the same pace.^M Neither number tells anyone what to choose. They're the bill, written out.

What the year buys is harder to put on a chart, but there's evidence. In one study, 129 university faculty on sabbatical were compared with 129 matched colleagues who stayed: "Among the sabbatees, resource loss declined and resource gain and well-being rose during the sabbatical. The comparison group showed no change."⁴ Shorter breaks help too, but they fade: a review of vacation studies found "positive effects on health and well-being (small effect, d=+0.43), but that these effects soon fade out after work resumption (small effect, d=-0.38)."⁵ And across 37 effect sizes, leisure and well-being "are moderately associated (inverse-variance weighted r = .26)." The same review adds a counterweight: "Compared with working samples, retired samples exhibit a stronger relation between leisure engagement and SWB."⁶ Free time matters at every age; the evidence doesn't say it matters more when you're young.

Figure 6.3. Three Households, Three Ages

These are three different households, not one household deciding when to go. Each starts the tool at its own age with $70,000 saved, $14,000 a year and the same $40,000 year off. The 32-year-old keeps 80%, the 40-year-old 78%, the 50-year-old 75%, and each needs about 4 extra work-years to make it up.^M In dollars the gap is $558,222 at 32, $324,890 at 40 and $165,158 at 50, mostly because the younger household's pile has more years to grow either way.

The later years are real, and most people get them: on 2023 death rates, about 79% of men and 87% of women alive at 32 reach 67.⁷ That's a population figure from a period table, not anyone's odds. It's a reminder that the stored years at the end are likely but not promised, which is part of why the question is worth asking at all.

Take the year at 32. To reach the same $2,744,010 at 67 without working longer, savings would go from $14,000 a year to $18,340, an extra $4,340 a year, about 31% more, from 33 on.^M So the same year has three readable prices: 80% of the pile, about 4 more work-years, or $4,340 more a year. The tool shows them side by side.

The tool starts at one year, and that's the story here: a summer or a year, taken while it can be enjoyed. It also lets the reader pick 2, 3, 4 or more years, up to 10. Each year off costs the same amount, savings pause for each one, and the bill grows with every year added.^M At the defaults, two years off already cost more than the $70,000 saved. When that happens, the page shows the month savings run out and how much isn't covered here, instead of quietly dropping it. Past about five years, this looks less like a gap and more like early retirement, and the projection gets shakier. The premium version adds a choice of what pays: from savings, as above, or from a windfall from outside the pile. A windfall leaves the pile untouched, but it isn't free money: it could have gone into the pile and grown there too.

What this is not

This isn't a suggestion to take a year off, or to wait. It's the arithmetic of one choice at one set of inputs. There's no U.S. right to a sabbatical year: the Family and Medical Leave Act gives eligible employees up to 12 workweeks for listed family and medical reasons, and that leave can be unpaid.² About 90% of civilian workers have access to unpaid family leave, which is access, not use, and not a sabbatical.⁸ The $40,000 is a lean teaching number, not a measured sabbatical cost; for scale, U.S. households spent a mean of $78,535 in 2024.⁹ Retirement accounts aren't part of this model. Education, not advice.

Why the early years count twice: A Year Is Not a Year.