Quick Ratio Calculator
Find the UK acid test ratio for business liquidity.
What this calculator does
This quick ratio calculator measures whether a business can meet short-term obligations without relying on selling stock. Enter cash and equivalents, short-term investments, trade debtors, and current liabilities, and it returns the quick ratio, the current ratio for comparison, and working capital in pounds.
The quick ratio is the stricter of the two liquidity tests, and the gap between them carries most of the information. A reassuring current ratio alongside a marginal quick ratio tells you that solvency depends on shifting stock — which is exactly the assumption that fails in a downturn, when stock is hardest to move.
When to use it
Check it before taking on any short-term commitment — a supplier tightening terms, a seasonal stock build, a new hire. Each consumes near-cash assets or adds to current liabilities, and the ratio shows whether the headroom exists.
It is also what lenders test, so knowing your position ahead of a covenant date or a facility application avoids an uncomfortable conversation. And it is a useful way to assess a customer or acquisition target from accounts filed at Companies House: a weak quick ratio at a major customer is an early signal that your own debtor balance with them carries risk.
Understanding the inputs
Cash and equivalents covers bank balances and anything convertible within roughly 90 days. Short-term investments should be holdings you could genuinely liquidate quickly rather than illiquid assets you happen to hold.
Trade debtors should be net of any bad debt provision, and it is worth ageing the ledger first, since anything beyond 90 days rarely merits full weight. Current liabilities include trade creditors, accruals, the VAT and PAYE due to HMRC, the current portion of any loan, and a drawn overdraft. Stock and total current assets feed the current ratio comparison rather than the quick ratio.
How is this calculated?
Quick Ratio = (Cash + Securities + Receivables) / Current Liabilities. Excludes inventory and prepaid expenses.
A worked example
A wholesaler holds £95,000 of cash, £20,000 of short-term investments, and £210,000 of trade debtors, against £320,000 of current liabilities. Quick assets total £325,000, giving a quick ratio of about 1.02 — technically covered, with essentially no margin.
The business also carries £260,000 of stock, so current assets are £585,000, the current ratio is 1.83, and working capital is £265,000. Those figures look reasonably healthy. But if £48,000 of VAT falls due inside the next quarter and £35,000 of debtors are past 90 days, the real position is considerably tighter than 1.02 suggests.
Limitations and assumptions
The ratio is a snapshot on a single date and reveals nothing about timing within the period. A business at 1.2 can still miss a payment if debtors settle in week six and wages fall due in week two. It also treats every debtor as equally collectible, which is seldom the case.
It ignores undrawn facilities completely, understating the liquidity of a business with unused overdraft headroom, and it can be flattered by deferring supplier payments past the balance sheet date. Read it alongside an aged debtor report, a rolling thirteen-week cash forecast, and your available facilities rather than treating the number as a verdict on its own.
Common Questions
- What is a good quick ratio?
- Above 1.0 means current liabilities are covered without selling any stock, which most analysts treat as the minimum. Between 1.0 and 1.5 is generally comfortable. Well above 2.0 can suggest cash sitting idle rather than working, so a higher figure is not automatically a better one.
- Why is stock excluded from the calculation?
- Because stock is the least certain current asset to turn into cash. Selling it takes time, it often moves only at a discount, and in a genuine liquidity squeeze its value falls exactly when you need it most. The quick ratio asks what you could settle using assets already close to cash.
- How does it differ from the current ratio?
- The current ratio includes stock and prepayments; the quick ratio removes both. The gap between them measures how far your liquidity depends on stock. A business showing 1.8 current and 1.0 quick has nearly half its current assets tied up in inventory rather than in cash or debtors.
- Where does the VAT liability sit?
- In current liabilities, and it can be substantial. VAT collected but not yet paid over to HMRC is money in your bank that belongs to the Exchequer, and the quarterly payment is a genuine near-term obligation. Businesses that treat that balance as working capital find the quick ratio a useful corrective.
- Should all trade debtors count as quick assets?
- Only what you will genuinely collect. Debtors over 90 days are frequently worth well below face value, and concentrated exposure to a single struggling customer deserves scepticism. Ageing the debtor ledger before running the ratio usually removes more from the numerator than owners expect.
- Does a ratio below 1.0 mean trouble?
- Not necessarily. Pubs, restaurants, and grocers collect cash immediately while paying suppliers on terms, so they routinely trade below 1.0 without difficulty because stock turns in days. The ratio only means something against sector norms and against how quickly your own working capital actually cycles.
- What do lenders look for?
- Typically 1.0 as a minimum, often written into a facility agreement alongside a debt service covenant, tested quarterly with a director's compliance certificate. What the lender is really assessing is whether a weak quarter forces a distressed stock sale or a missed payment. Trend counts as much as level.
- Can the ratio be flattered at the year end?
- Easily, which is why lenders sometimes test averages rather than a single date. Deferring supplier payments just beyond the balance sheet date reduces current liabilities and lifts the ratio without anything real changing. Reviewing it monthly gives a considerably more honest picture than annual accounts do.
- Does an overdraft facility count?
- The drawn balance sits in current liabilities and worsens the ratio, while undrawn headroom appears nowhere. That is a genuine weakness, since a business with a substantial unused facility is far more liquid than the number implies. Always report available headroom alongside the ratio.