Quick Ratio vs Cash Ratio: Building Both Yourself in Ten Minutes

The quick ratio takes your current assets and removes inventory and prepaid expenses before dividing by current liabilities, on the logic that inventory has to be sold first and prepaid expenses were never going to convert back to cash at all. What's left is cash, marketable securities, and receivables, the assets that are either already liquid or one collection cycle away from it. This makes the quick ratio a meaningfully more honest picture than the current ratio for any business holding real inventory, since inventory sitting on a shelf isn't paying next month's bills no matter what the balance sheet says it's worth.

The cash ratio goes one step further and removes receivables too, leaving only cash and cash equivalents divided by current liabilities. This answers a narrower, blunter question: if every current liability came due today and not one customer paid you in time, could you cover it with cash alone. It's a harsher test than the quick ratio, and most healthy businesses run a cash ratio well below one, since holding enough pure cash to cover every current liability outright is expensive and usually unnecessary.

Pull your most recent balance sheet and start with total current assets. Subtract inventory and prepaid expenses to get your quick assets, then divide by current liabilities for the quick ratio. Then subtract receivables from that same quick asset figure to get to cash and equivalents alone, and divide by current liabilities again for the cash ratio. Doing this by hand once, rather than pulling it from a dashboard, forces you to actually look at what's inside each line item, which is often more useful than the ratio itself.

Build both ratios from your latest balance sheet in these steps:

1. Pull your most recent balance sheet and write down the total current assets figure to start from.
2. Subtract inventory and prepaid expenses from current assets, and the remainder is your quick assets figure.
3. Divide those quick assets by total current liabilities, and the result is your quick ratio.
4. Subtract receivables from quick assets to leave cash and cash equivalents only.
5. Divide that cash figure by current liabilities to get the cash ratio.

A quick ratio that looks solid while the cash ratio looks thin tells you your near-term liquidity depends heavily on collecting receivables on schedule. That's a very different risk profile from a business where both ratios sit close together, which means liquidity doesn't depend much on collections timing at all. Track the gap between the two over time, not just each ratio in isolation, since a widening gap is often the earliest sign that receivables are slowing down before it shows up anywhere else in your reporting.

Lenders and landlords reviewing a credit application often care more about the quick ratio, since it reflects a realistic near-term liquidity picture without being as punishing as the cash ratio. A board or a founder stress-testing a genuine worst case, a sudden stop in collections, gets more value from the cash ratio, since it answers the harsher question directly. Neither one replaces an actual cash flow forecast; both are a fast gut check you can run from a balance sheet you already have in front of you.

Calculate both ratios on the same day each month, right after your books close, rather than pulling them occasionally when someone asks. A ratio calculated inconsistently, sometimes mid-month, sometimes right after a large payment run, tells you less than a ratio tracked on a fixed schedule, since timing noise inside a single month can move either number more than any real change in your underlying liquidity did. Consistency in when you calculate it matters almost as much as the calculation itself.