Net working capital is your current assets minus your current liabilities – it tells you how much short-term financial cushion your business actually has after accounting for what you owe. Gross working capital is simply your total current assets, with no consideration of debts.
For day-to-day business decisions, net working capital is almost always the more useful number. Here is why.
The Definitions
Gross working capital = Total current assets (cash, receivables, stock, prepaid expenses – everything convertible to cash within twelve months).
Net working capital = Current assets – Current liabilities (subtracting supplier payables, tax liabilities, short-term loan repayments, and other obligations due within the year).
The difference changes the picture dramatically.
Why Net Working Capital Is Almost Always More Useful
Gross working capital ignores what you owe, which makes it misleading on its own. A business with £300,000 in current assets sounds comfortable – but if it also has £290,000 in current liabilities, there is only £10,000 of breathing room. Gross working capital shows the £300,000. Net working capital shows the £10,000 and tells you the truth.
This is why your accountant, your bank, and any potential investor will focus on the net figure. It answers the fundamental question: can this business meet its short-term obligations?
A Worked Example
Consider two businesses:
Business A: A wholesale distributor in Manchester
Current Assets:
– Cash: £40,000
– Trade receivables: £130,000
– Stock: £80,000
– Total (Gross Working Capital): £250,000
Current Liabilities:
– Trade payables: £60,000
– VAT due: £15,000
– Short-term loan repayment: £25,000
– Total: £100,000
Net Working Capital: £250,000 – £100,000 = £150,000
Business B: A construction subcontractor in Birmingham
Current Assets:
– Cash: £25,000
– Trade receivables: £180,000
– Stock (materials): £45,000
– Total (Gross Working Capital): £250,000
Current Liabilities:
– Trade payables: £120,000
– PAYE/NI due: £35,000
– Subcontractor payments due: £60,000
– Short-term loan repayment: £20,000
– Total: £235,000
Net Working Capital: £250,000 – £235,000 = £15,000
Both businesses have identical gross working capital of £250,000. But Business A has a comfortable £150,000 net position, while Business B is running on a razor-thin £15,000 margin. Gross working capital says they are the same. They are not even close.
When Gross Working Capital Does Matter
Despite its limitations, gross working capital matters in specific situations:
Asset-based lending. Lenders who advance funds against your receivables or stock care about the gross figure – the total value of current assets determines how much they will lend.
Understanding scale. If gross working capital is growing, that typically reflects business growth. If it is shrinking while revenue is flat, assets are being drained.
Asset composition. Breaking the gross figure into cash versus receivables versus stock tells you about liquidity. Most assets in cash is a very different position from £200,000 tied up in slow-moving stock.
The Working Capital Ratio: Net Working Capital as a Ratio
The working capital ratio (also called the current ratio) expresses the same relationship as net working capital, but as a ratio:
Working Capital Ratio = Current Assets / Current Liabilities
For Business A: £250,000 / £100,000 = 2.5
For Business B: £250,000 / £235,000 = 1.06
A ratio above 1.0 means you can theoretically meet your short-term obligations. Most guidance suggests 1.2 to 2.0 is healthy for UK SMEs. The ratio format makes it easier to track over time, but it is fundamentally the same insight as net working capital. Check yours with the Working Capital Calculator.
Common Confusion Points
“My working capital is £200,000” – but which one? When someone quotes a working capital figure without specifying, they almost always mean net. Clarify in conversations with lenders or advisors, because the difference can be substantial.
Negative net working capital is not always a crisis. Some business models – particularly those with short collection cycles and long supplier terms – operate with negative net working capital by design. But for most SMEs, it is a warning sign.
Gross working capital does not tell you about liquidity. A business can have high gross working capital but still struggle to pay bills if those assets are locked in slow-selling stock or overdue receivables. The quality of your current assets matters too.
Which Should You Track?
Track net working capital. It tells you whether your business can meet its obligations, and it is the number your bank, accountant, and investors will ask about. Glance at gross working capital when a lender asks for it or when you want to understand total asset scale. Otherwise, net is the figure that drives decisions.
This article is for general information only and does not constitute financial advice. Seek professional advice for decisions specific to your business.