Why profitable businesses still run out of money
A growing landscaping company books $40,000 in profit one quarter and the owner feels great, right up until payroll bounces. How does a profitable business fail to make payroll? The answer is working capital, the money tied up in the gap between what you are owed and what you owe. Profit on the income statement and cash in the bank are not the same thing, and the difference has sunk more healthy-looking businesses than outright losses ever have.
Net working capital is simply current assets minus current liabilities. Current assets are cash, accounts receivable, and inventory, the resources you expect to convert to cash within a year. Current liabilities are accounts payable, short-term debt, and other bills due within a year. If you have $250,000 in current assets and $150,000 in current liabilities, your net working capital is $100,000. That $100,000 is the operational cushion funding day-to-day life while you wait for customers to pay.
The working capital ratio puts it in proportion. Divide current assets by current liabilities and that same business shows a ratio of 1.67. A ratio above 1.0 means you can cover short-term obligations; below 1.0 means your near-term bills exceed your near-term resources, a genuine red flag. Many analysts view a ratio between 1.2 and 2.0 as the comfortable zone. Much higher can mean cash sitting idle instead of fueling growth.
Days working capital reveals the timing trap. This metric translates your working capital into how many days of operations it covers, exposing the squeeze that growth creates. When sales jump, you buy more inventory and extend more credit to customers before any of that cash comes back. Rapid growth can actually drain working capital, which is why fast-expanding companies so often hit a cash wall despite rising profits. This calculator computes all three figures, net working capital, the ratio, and days, so you can see the gap before it bites.