Saving
A household absorbs an income shock in a fairly predictable order
When money stops arriving, the sequence in which a household reaches for each option is largely determined in advance, and most of that sequence can be improved before it is needed.
By Harsh Vardhan4 min read
The order is set long before the shock arrives
When household income drops sharply, very few families sit down and design a response from first principles. They reach for whatever is nearest, in a rough order of least painful to most painful, and the contents of that order were determined by decisions made months or years earlier. Cash first, if there is any. Then cutting whatever can be cut quickly. Then borrowing. Then the things nobody wants to touch.
Because the sequence is predictable, it can be examined in advance in a way that the shock itself cannot. You cannot know whether income will fall, or when, or by how much. You can know with reasonable confidence what your household would reach for first, and whether anything is there.
That reframing is more useful than trying to forecast the shock. Preparation is not prediction. It is making sure the early, cheap steps in a known sequence actually exist, so that the expensive ones are reached later or not at all.
The first stage is a cash buffer doing exactly one job
Cash held for this purpose converts a sudden problem into a slower one. It does not make the shortfall disappear; it buys weeks in which the household can respond deliberately rather than accepting the first available option. That is its entire function, and it explains why the return earned on it is close to irrelevant.
What the buffer is worth is measured in time, not amount. A given sum covers a number of months of reduced outgoings, and reduced is the operative word — a household under strain does not spend at its normal rate, so the relevant divisor is a stripped-down monthly figure rather than the usual one.
The buffer also has a second, less obvious effect. Knowing it exists changes decisions made in the first fortnight, and those early decisions tend to have the longest consequences. Panic in week one is expensive in month six.
Cutting outgoings runs into the shape of a budget
The second stage is reducing what goes out, and here the household meets an awkward structural fact. The categories that could be cut instantly are usually the small ones, and the categories that dominate the total are usually contractual, slow to change or both. Somewhere to live cannot be adjusted this month. A subscription can, and it does not move the number very far.
So the useful preparation is knowing in advance which large commitments have any flexibility in them and how quickly it could be accessed. Some arrangements have provisions for periods of difficulty; some can be renegotiated; some genuinely cannot be touched. Finding out which is which under pressure wastes the days when it matters most.
It is also worth distinguishing costs that can be paused from costs that can be deferred. A deferred cost is still coming, and a household that treats deferral as reduction discovers the difference later, usually while still recovering.
Borrowing during a shock is expensive in a specific way
The third stage is credit, and it is the point at which the shock starts producing costs of its own. Borrowing under pressure tends to be more expensive than borrowing calmly, partly because the household is in a weaker position and partly because the options available quickly are rarely the cheapest ones on offer.
There is a compounding effect worth being explicit about. A shortfall covered by borrowing does not end when income returns; it leaves a balance that has to be repaid out of the recovered income, which slows the rebuilding of everything else. A three-month interruption can occupy a household for a year afterwards.
This is not an argument that borrowing in a crisis is a mistake. Sometimes it is clearly the right instrument, particularly where the interruption is known to be short. It is an argument for understanding that this stage converts a temporary problem into a longer one, which is exactly why the earlier stages are worth having.
Recovery is a stage too, and it is the one that gets skipped
When income returns, most households resume their previous spending pattern quickly and rebuild whatever was used up slowly, if at all. That order leaves the buffer empty going into the next event, and shocks are not evenly spaced. The households that come through a second interruption comfortably are usually the ones that treated rebuilding as a stage of the response rather than an optional afterthought.
A useful exercise afterwards, while the memory is fresh, is writing down what was actually reached for and in what order. It nearly always contains a surprise, and it is the only reliable way to find out where the sequence broke.
All of this varies with the household — with how stable income is, how many people depend on it, what obligations exist and what support is available locally, which differs enormously between countries. It is a description of a common pattern rather than a plan, and anything involving borrowing or a decision of size is worth taking to a regulated adviser.
Common questions
How much of a buffer is enough for an income interruption?
The honest answer is that it depends on how stable the income is, how many sources it has and how quickly it could be replaced. The mechanism to apply is that a buffer is measured in months of reduced outgoings rather than in a fixed sum, so the same amount protects two households very differently.
Should I keep saving while my income has stopped?
Generally the money is doing its job by being available, and adding to it while income has fallen is unusual. The more relevant question is which outgoings can be reduced quickly and which cannot, since that determines how long the existing buffer lasts.
Is it better to cut spending or borrow during a shortfall?
They are not alternatives so much as stages, and most households do some of both. Cutting has no cost beyond the loss of whatever was cut; borrowing has a cost that outlives the interruption. Which mix makes sense depends heavily on how long the shortfall is expected to last, and that judgement is worth discussing with someone qualified.
Harsh writes about spending, saving, debt, mostly the parts other people skip and prefers a plain explanation to a clever one.
