Working Capital, Current Ratio, and Quick Ratio: Can the Business Pay Its Bills?
October 21, 2026
Profitable businesses can still run out of cash. Liquidity ratios test whether a company can pay its short-term obligations with its short-term assets. The three standard measures come straight from the balance sheet: working capital (current assets minus current liabilities), the current ratio (current assets divided by current liabilities), and the quick ratio (liquid current assets divided by current liabilities).
Suppose a company has current assets of $250,000, of which $100,000 is inventory, and current liabilities of $150,000. Working capital is $100,000, the current ratio is 1.67, and the quick ratio, excluding inventory, is (250,000 − 100,000) ÷ 150,000 = 1.0.
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Current assets are cash, accounts receivable, inventory, and other assets expected to turn into cash within a year. Current liabilities are obligations due within a year, such as accounts payable, short-term debt, accrued expenses, and the current part of long-term debt. The current ratio shows how many dollars of current assets cover each dollar of short-term obligations. The quick ratio (acid-test) excludes inventory, which can be slow to sell and may sell below book value, and sometimes prepaid expenses.
| Measure | Formula | Example |
|---|---|---|
| Working capital | Current assets - current liabilities | $250,000 - $150,000 = $100,000 |
| Current ratio | Current assets / current liabilities | 250,000 / 150,000 = 1.67 |
| Quick ratio | (Cash + receivables + securities) / current liabilities | 150,000 / 150,000 = 1.00 |
| Cash ratio | Cash and equivalents / current liabilities | Depends on cash, e.g. 40,000 / 150,000 = 0.27 |
Interpreting the Ratios
A current ratio above 1 means current assets exceed current liabilities. Many analysts view 1.5 to 2 as comfortable for typical industries, but benchmarks vary widely. A quick ratio of 1.0 or more suggests the company can meet its obligations without selling inventory. Very high ratios are not always good, since they may indicate idle cash or bloated inventory. Very low ratios signal liquidity risk.
Retailers often run lower current ratios because inventory turns quickly and suppliers extend credit. Subscription businesses with deferred revenue may have low ratios while still being healthy, since the liability will be fulfilled by service, not cash.
Why Quality Matters
A current ratio can look strong when the assets are poor in quality. Receivables that customers are late paying, or inventory that is obsolete, inflate the numerator. Always look at aging of receivables and turnover of inventory. Also, consider the timing of cash: if $100,000 of payables is due next week and the receivables arrive next month, the ratio does not capture the cash crunch. A cash flow forecast shows timing.
Improving Liquidity
Collect receivables faster by invoicing promptly and following up, offer early payment discounts only if cost-effective, reduce slow-moving inventory, negotiate longer terms with suppliers, refinance short-term debt into long-term, build a cash reserve, and arrange a line of credit before you need it. Be wary of delaying supplier payments too much, which can harm relationships and credit terms.
Using the Ratios in Practice
Lenders often include minimum liquidity ratios in loan covenants. Track the ratios monthly, compare them to your own trend and industry peers, and use them as early warning signs. Pair them with the cash conversion cycle: days of inventory plus days of receivables minus days of payables.
Frequently Asked Questions
What is a good current ratio?
Often 1.5 to 2, but it varies by industry.
Why exclude inventory in the quick ratio?
Because inventory can take time to sell and may not realize its book value.
What is working capital?
Current assets minus current liabilities.
Can a profitable company have a liquidity problem?
Yes, if cash is tied up in receivables or inventory while bills come due.
Is a very high current ratio bad?
It can indicate inefficient use of assets, such as excess cash or inventory.