Working capital: the cash hiding in your business

There is often a meaningful pile of cash trapped inside a healthy business, not lost, just stuck. It is sitting in unpaid customer invoices and in stock on the shelf, while the bills you have already paid sit on the other side of the ledger. The amount can run to a month or two of revenue. Free even part of it and you have funded growth without raising a dollar from a bank or an investor.

The name for this is working capital, and it is one of the highest-leverage things a small company can manage. It rarely gets attention because it does not show up on the profit and loss. It lives on the balance sheet, quietly deciding how much cash you have to work with.

What working capital actually is

In plain terms, working capital is the money locked in the day-to-day operating cycle. A simple working definition is receivables plus inventory minus payables. Receivables are what customers owe you; that is cash you have earned but not collected. Inventory is stock you have paid for but not yet sold. Payables are what you owe suppliers; that is effectively a short-term loan they are giving you, so it works in your favor.

Put together: the more your customers owe you and the more stock you hold, the more of your cash is tied up. The more you owe suppliers, on reasonable terms, the less of your own cash you need. The goal is not zero working capital; it is making sure you are not financing your customers and your shelves with cash you would rather keep in the bank.

The cash conversion cycle

The cash conversion cycle is the same idea expressed in days: how long, on average, between paying out cash and getting it back. It is the number of days stock sits before it sells, plus the days customers take to pay you, minus the days you take to pay suppliers. The bigger that number, the longer your cash is gone, and the more cash you need just to keep running.

Walk it through with figures. Suppose your stock sits for 50 days before selling, your customers pay in 45 days, and you pay your suppliers in 30 days. Your cash conversion cycle is 50 plus 45 minus 30, which is 65 days. That means roughly 65 days of operating cost is permanently tied up in the business at any moment. On $1.2 million of annual costs, that is over $200,000 of your cash sitting in the cycle rather than in your account.

Freeing trapped cash

Every day you shave off that cycle releases cash you already have. Three levers, in order of how quickly they usually pay off:

• Collect faster: invoice the day the work is done, not at month end; put clear due dates and payment terms on every invoice; and chase politely but promptly, because a 45-day average often hides a few customers stretching to 70.
• Hold less stock: identify the slow-moving items eating cash, order more often in smaller quantities, and stop buying ahead of demand just because a bulk discount looked attractive.
• Negotiate terms: ask key suppliers for 45 or 60 days instead of 30, which is normal in many industries and costs them little while easing your cash meaningfully.

What it adds up to

Take the example above and improve each lever modestly. Bring collections from 45 days to 35, inventory from 50 days to 40, and supplier terms from 30 days to 45. The cycle falls from 65 days to 30 days. On that same $1.2 million cost base, you have freed somewhere around $115,000 of cash, money that was always yours, now available to hire, to invest, or simply to sleep better.

None of this changes your profit by a cent. It is purely about timing. That is what makes working capital such a quiet advantage: the cash is already in the business, earned and accounted for. Managing the cycle is just the difference between it being stuck and it being yours to use.