What a Retirement Bucket Strategy Can and Cannot Do

Lakshmi wants to stop worrying about the whole thing at once

Lakshmi looks at a single number representing everything she has, and every market fall applies to all of it. She knows, in principle, that she will not spend most of it for fifteen years. It does not feel that way when the number drops.

The bucket approach is a response to exactly that. It divides the corpus by when the money will be spent, which changes very little about what she owns and a great deal about how she experiences owning it.

That is worth being precise about, because it is both the strength of the approach and the thing most often overstated.

How it works

Three pots, defined by time rather than by product.

The near bucket holds the next few years of spending in cash and short-term instruments. It does not move with markets, and it is what Lakshmi actually lives on.

The medium bucket holds several years beyond that in bonds and conservative holdings, providing some growth with limited volatility.

The long bucket holds the rest in equities, funding the years far enough away that a fall has time to recover.

Spending comes from the near bucket. Periodically — annually, or on a rule — the medium bucket refills the near one and the long bucket refills the medium. In a bad year the refill can be deferred, because the near bucket already holds several years of spending and nothing has to be sold at a poor price.

What it genuinely does

It prevents forced selling, which is the substantive benefit. A retiree with several years of spending already in cash is never obliged to sell equities during a fall, and being a forced seller in a bad market is the single most damaging thing that can happen to a retirement portfolio.

It makes the allocation holdable. This matters more than it sounds. A retiree who can point at a specific pot and say "that is my next four years, and it has not moved" is far more likely to leave the equity portion alone through a crash than one looking at a single falling total. The best allocation is worthless if it is abandoned at the bottom, and buckets are a device for not abandoning it.

It makes the decisions concrete. How much to hold safely stops being an abstract percentage and becomes a countable number of years, which is easier to reason about and easier to explain to a spouse.

What it does not do

It does not change your overall allocation, and this is the most common misunderstanding. Buckets are a way of describing and organising an allocation, not a different one. A portfolio divided into three pots holds exactly the same assets in the same proportions as the equivalent undivided portfolio, and it will produce the same return.

It does not remove risk. The long bucket falls when equities fall. What changes is that Lakshmi is not obliged to sell it, which is a real benefit and not the same as not having lost anything.

It does not make the money last longer by itself. Whether her corpus supports her depends on how much she withdraws relative to what she holds, and buckets do not alter that arithmetic. A withdrawal rate that does not work will not work when organised into three pots.

It is not free of judgement. The rules for refilling the buckets, particularly the decision to defer a refill in a bad year, are discretionary and can be got wrong — and deferring for several consecutive years quietly drains the near bucket while the long one recovers, which needs watching rather than trusting.

How large the near bucket should be

Large enough to cover the length of fall Lakshmi wants to be able to ignore, which is a judgement rather than a formula.

The trade-off is straightforward. A larger near bucket means more certainty and less growth, since cash earns less than the portfolio is expected to. A smaller one means more growth and a shorter period she can sit out a fall.

What makes it a real decision rather than an arbitrary one is her own history and temperament: how long a fall would she need to be insulated from before she would do something destructive? Somebody who held calmly through previous falls needs a smaller near bucket than somebody who did not, and what a drawdown reveals is the honest way to find out which she is.

How it relates to flooring

Buckets and flooring solve overlapping problems and are not the same thing.

Flooring separates spending by necessity — what must arrive against what can vary — and funds the essential part with income that does not depend on markets, as income flooring sets out.

Buckets separate the corpus by time — when each part will be spent.

They combine well. A floor covering essential spending, with the remaining corpus organised into buckets for discretionary spending and growth, is a coherent structure. Flooring answers "what if markets are bad for a decade"; buckets answer "what do I sell this year".

What to take away

Buckets organise a retirement corpus by when the money will be spent, and their real benefit is behavioural and practical: no forced selling in a fall, and an allocation the retiree can actually hold through one.

They do not change the underlying allocation, remove risk, or make a corpus last longer. If the withdrawal rate does not work, arranging it into three pots will not fix it. Size the near bucket to how long a fall you need to be able to ignore, watch the refill rule rather than trusting it, and treat the arrangement as a way of holding a good plan rather than as a substitute for having one.