Australia Day is a natural pause to think about resilience, the quality that lets a business absorb a shock and keep going rather than be knocked over by it. For an owner-led business, resilience is less about size or even profit than it is about one unglamorous thing: a cash buffer deliberately sized to carry the business through its own rough weeks.
Most owners have a buffer of sorts, in the sense that there is usually some money in the account. What far fewer have is a buffer with a number behind it, a target chosen on purpose, sized to the way this particular business actually moves through a year. The difference matters, because a vague sense of having enough is exactly the kind of comfort that evaporates the first time a large customer pays late or a quiet stretch runs longer than expected.
A buffer with a number, not a feeling
The trouble with running on a feeling is that the feeling is calibrated to good conditions. The account looks healthy in a normal month, so the buffer seems ample, right up to the point where two or three things go wrong at once and it turns out the cushion was thinner than it felt. A buffer that holds is one with a deliberate target, a figure the owner has chosen and can name, rather than whatever happens to be left after the bills.
Setting that figure starts with the business’s own pattern. How deep is the seasonal trough, the leanest stretch of the year when income thins but costs continue? How exposed is the business to a single large customer paying late? How long would it take to recover from a genuine disruption? The answers point to a buffer measured in weeks of operating costs, sized to this business rather than a rule of thumb borrowed from another. A seasonal business with a deep winter needs more cushion than a steady one with even monthly income, and the buffer should reflect that reality rather than a generic figure.
The right number is also shaped by how quickly the business can pull other levers in a squeeze. A firm that can slow discretionary spending sharply, draw on a committed facility, or lean on a few loyal customers to pay early needs a smaller cash cushion than one with high fixed costs and little room to move. The buffer is not there to cover every conceivable shock on its own. It is there to buy the time to make good decisions rather than forced ones, which means it can be sized to the gap between the worst realistic week and the point at which the other levers start to work. Costing it that way usually lands on a figure that is meaningful but achievable, rather than a round number that feels safe and never gets built.
Build the buffer through the year, not in a crisis
A buffer is almost impossible to build in the moment you need it, which is the whole point of building it before. The time to set the target and start funding it is in the calmer, planning-minded weeks of the year, deciding to hold back a deliberate slice of good months rather than letting the account drift up and down on its own.
Often the fastest route to a buffer is not earning more but releasing cash already trapped inside the business. Money sits idle in slow-paying debtors, in stock held longer than it needs to be, in supplier terms that could be better, in work completed but not yet invoiced. A Working Capital Unlock maps where that cash is caught and produces a prioritised list to release it, which is often how an owner funds a meaningful buffer without waiting for a stronger trading run. The cash to become resilient is frequently already in the business, parked where it cannot help.
Our note on cash flow discipline sets out how owners hold a buffer steady once it is built, rather than quietly spending it back down the first time the account looks comfortable. The discipline of leaving the buffer alone is as important as the work of building it.
Resilience is a decision, made early
The businesses that ride out a bad month, a lost customer or a slow season are rarely the luckiest ones. They are the ones that decided, in a calm moment, how much cushion this particular business needed and then built it on purpose. Resilience reads like a temperament, but underneath it is usually a number, chosen deliberately and protected.
Australia Day is as good a prompt as any to set that number for the year, while the planning energy is still fresh and the pressure is low. Sizing and building a buffer that genuinely holds is the work we do with owners, and our broader insights on managing cash are a practical place to begin shaping a more resilient year ahead.
Frequently asked questions
How much cash buffer should a small business hold?
Enough to carry the business through its own rough weeks, sized to its pattern rather than a borrowed rule of thumb. Look at the depth of the seasonal trough, the exposure to a large customer paying late, and how long recovery from a disruption would take. The answer is a figure in weeks of operating costs. A seasonal business with a deep winter needs more cushion than a steady one with even monthly income.
Why is a deliberate cash buffer better than just having money in the account?
Because a vague sense of having enough is calibrated to good conditions. The account looks healthy in a normal month, so the buffer seems ample, right until two or three things go wrong at once and the cushion turns out thinner than it felt. A buffer with a chosen target, a number the owner can name, holds under pressure in a way that whatever happens to be left after the bills does not.
How can I build a cash buffer without earning more first?
Often the fastest route is releasing cash already trapped in the business, in slow-paying debtors, in stock held too long, in work done but not yet invoiced. A Working Capital Unlock maps where that cash is caught and produces a prioritised list to free it, which frequently funds a meaningful buffer without waiting for a stronger trading run. The cash to become resilient is often already inside the business.
When is the best time to build a business cash buffer?
In the calm, planning-minded weeks of the year, well before you need it. A buffer is almost impossible to build in the moment a crisis hits, which is exactly why it has to be built beforehand. Setting the target early and holding back a deliberate slice of the good months lets the buffer accumulate steadily, rather than leaving the account to drift up and down on its own through the year.
How do I stop spending my cash buffer once I have built it?
Treat the buffer as a separate, named target rather than spare cash, and protect it the way you would a fixed cost. The discipline of leaving it alone is as important as the work of building it, because the temptation to draw it down arrives the first time the account looks comfortable. Our note on cash flow discipline sets out how owners hold a buffer steady once it is in place.
What makes an owner-led business resilient to a bad month?
A cash buffer sized on purpose to the business’s own seasonality, built before it is needed and protected once it is. Resilience reads like a temperament, but underneath it is usually a number, chosen deliberately. The businesses that ride out a lost customer or a slow season are rarely the luckiest. They are the ones that decided, in a calm moment, how much cushion they needed and then built it.
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