Business failure is generally attributed to the business being bad. The immediate cause is almost always running out of cash, which is a distinct problem and can happen to a profitable business.
Profit is not cash
The distinction that catches people who have never run a business.
Profit is revenue minus costs over a period, recognised when earned rather than when received.
Cash is what is actually in the account.
A business can be profitable on paper and unable to pay wages, because customers have not paid yet and suppliers have.
Which is the most common way growing businesses fail — growth consumes cash before it generates it.
The working capital cycle
The specific mechanism.
Money goes out to buy stock or deliver work, then time passes, then money comes in from customers.
The gap must be funded from somewhere.
Which means the faster a business grows, the more cash the gap consumes, and a business doubling in size may need substantially more cash than it generates.
Businesses that take payment before delivering have negative working capital, which is why subscription and prepayment models are structurally advantaged.
Late payment
A persistent problem, particularly for small suppliers to large customers.
Payment terms are set by the stronger party, and enforcement of agreed terms is weak in most jurisdictions.
Which means a small business effectively lends to its large customers, without interest and without choice.
Legislation on payment terms and reporting requirements exists in several countries with limited effect on behaviour.
Practical responses include deposits, staged payments, prompt invoicing and, where possible, credit checking before extending terms.
Concentration
Depending on a small number of customers.
Which is common because the first large customer is transformative, and it creates existential risk when that customer leaves or delays payment.
A reasonable rule of thumb used by lenders is that any customer above a substantial share of revenue is a risk factor.
Reducing concentration takes time and is a strategic priority rather than a task.
Pricing
Underpricing is extremely common and is difficult to correct later.
Because costs are underestimated — particularly the owner's time, which is frequently unpriced — and because winning early customers on price establishes an expectation.
Which produces businesses that are busy and unprofitable, and the busyness disguises the problem for a long time.
Calculating a genuine cost per unit of output, including everything, is the exercise most small businesses have never completed.
Tax
Money collected on behalf of tax authorities is not the business's money, and treating it as available cash is a well-documented route to failure.
Which is why separating it into a distinct account as it is collected is standard advice and is frequently ignored under cash pressure.
Tax authorities are among the most persistent creditors and frequently the ones that force the issue.
What survives
Businesses that watch cash weekly rather than reviewing accounts quarterly.
Those that maintain a buffer sufficient for a period of disruption.
Those that price for profitability from the start rather than intending to raise prices later.
And those that reduce dependency on any single customer, supplier or channel before being forced to.
This is a description of common patterns rather than advice on any specific business, and anyone in financial difficulty should take professional advice early, since options narrow considerably as cash runs down.
Personal guarantees
The term that removes the protection people assume a limited company provides.
Lenders and landlords routinely require directors to guarantee obligations personally, which means business failure becomes personal liability.
Which is negotiable in scope — capped amounts, time limits, release conditions on meeting covenants — and is generally accepted without negotiation.
Understanding exactly what has been guaranteed, across every agreement, is worth an afternoon and is frequently never done.
Insurance
Underinsurance is common and discovered at the worst possible moment.
Business interruption cover, in particular, was tested widely in recent years and many policies did not respond as owners had assumed.
Which is an argument for reading what is actually covered rather than relying on the summary, particularly for the specific events most likely to affect the business.
Record keeping
Poor bookkeeping obscures problems until they are severe.
Which is why the businesses that survive generally know their position weekly, and the ones that fail frequently discover it at year end.
A simple weekly cash position, forecast forward thirteen weeks, is the single most useful management tool available to a small business.
Succession and dependency
Businesses dependent entirely on the owner have limited value and limited resilience.
Which becomes apparent when the owner is ill, wants to sell, or simply wants a holiday.
Documenting processes, developing someone else, and reducing customer dependence on one person all increase both resilience and eventual sale value.
It is the work that never feels urgent and is the difference between a business and a job.