Current ratio and quick ratio: measuring short-term liquidity

Liquidity ratios ask one practical question: if the bills due over the next year arrived today, could the company pay them from what it already has? The current ratio compares all current assets (those expected to turn into cash within a year) with all current liabilities (those due within a year). The quick ratio, also called the acid-test ratio, keeps only the assets that turn into cash fastest. The cash ratio keeps only cash and securities.

These are the first ratios a supplier or a short-term lender checks, and they are easy to compute from any Balance sheet: assets, liabilities and equity explained with Apple. They are also easy to over-read. A ratio below 1 means current liabilities exceed current assets, which sounds alarming. For a struggling manufacturer it can be. For a company like Apple Inc., whose suppliers wait months to be paid and whose cash pile mostly sits in long-term bonds, it is a sign of bargaining power.

This page computes all three ratios for Apple at September 27, 2025, explains each line that feeds them, and shows how to tell when a low reading is harmless and when it is the first sign of trouble.

The current ratio

Current assets are cash, short-term marketable securities, receivables, inventory and other items expected to convert to cash within a year. Current liabilities are payables, accrued expenses, deferred revenue, short-term borrowings and the portion of long-term debt due within a year.

The difference, negative working capital, is the subject of the Working capital and the cash conversion cycle, with Apple’s numbers page, which shows how Apple's cash cycle runs at about minus 71 days. Here the focus is narrower: can the current liabilities be met?

The quick ratio (acid test)

Inventory has to be sold, and the buyer then has to pay, before it becomes cash. Prepaid expenses never become cash at all. The quick ratio drops them and keeps only assets that can pay a bill within weeks.

Apple's vendor non-trade receivables need a word. The 10-K explains that they arise from purchases of components by the outsourcing partners and other vendors that build subassemblies or assemble Apple's products. They are real claims, but the 10-K notes they are unsecured and concentrated among a few individual vendors, and they depend on the same supply relationships as Apple's payables. Whether to count them as "quick" is a judgment, which is why both figures are worth knowing.

For Apple, dropping inventory barely matters. Inventory is only $5.7 billion, under 4% of current assets, a very small figure for a company with $416.2 billion of annual sales. For a retailer or an industrial company, inventory can be the largest current asset, and the gap between the current and quick ratios is wide.

The cash ratio

The strictest test counts only cash and securities that can be sold within days.

Why below 1 is fine for Apple

Read alone, a current ratio of 0.89 and a cash ratio of 0.33 suggest a company that could not pay its short-term bills. Three facts from the same 10-K reverse that impression.

1. The biggest liability is funded by the business itself. Accounts payable of $69.9 billion, 42% of current liabilities, is money owed to suppliers on trade terms. It is paid from the cash that each month's sales bring in, and new payables replace it. As long as sales continue, payables are a revolving source of funding, not a pile of bills waiting to be paid from savings. Deferred revenue of $9.1 billion is an obligation to deliver services that customers have already paid for, not to hand back cash.

2. Most of the cash pile is classified as non-current. Apple held $77.7 billion of marketable securities with maturities beyond a year. Accounting rules place them outside current assets, but they are mostly bonds that can be sold. Counting them, cash and securities of $132.4 billion cover 80% of all current liabilities, and Apple's management states in the 10-K that its $132.4 billion of cash and securities, along with cash from operations and access to debt markets, will meet its cash requirements over the next 12 months and beyond.

3. Operating cash flow is enormous relative to the bills. Apple generated $111.5 billion of operating cash flow in fiscal 2025, about two-thirds of its year-end current liabilities. The debt due within a year (commercial paper 7,979 plus current term debt 12,350, or 20,329) equals about two months of that cash flow.

A balance sheet is a snapshot; liquidity is about flows. The Cash flow statement: operating, investing and financing explained shows those flows directly.

When below 1 is dangerous

The same ratio is a warning when the company lacks Apple's cash generation and market access.

The difference lies in what the ratio leaves out. Check four things before you judge a low current ratio:

• Is operating cash flow positive and stable? Negative cash flow turns a low ratio into a countdown.
• How fast does inventory turn? Slow or obsolete stock is not really liquid.
• What is in current liabilities? Short-term debt that must be refinanced is riskier than trade payables that roll over naturally.
• What else is available? Undrawn credit lines, non-current securities and market access all count. They show up in the notes and in the liquidity section of MD&A.

High ratios aren't automatically good

A current ratio of 3 or 4 can mean idle cash, bloated inventory or customers who are slow to pay. As a rough rule of thumb, many lenders are comfortable with a current ratio between about 1 and 2 and a quick ratio near 1 for a typical industrial company, but strong retailers and consumer businesses often run below 1 by design. Compare with peers in the same industry and with the company's own history.

Pitfalls

• Snapshot timing. Year-end balances can be managed: a company can pay down payables or delay purchases just before the balance-sheet date. Look at quarterly figures too.
• Receivables quality. A large receivables balance from a few weak customers is less liquid than it looks. Check the allowance for credit losses and concentration notes.
• Classification rules. Debt that becomes due within a year moves into current liabilities and can make the ratio drop sharply in one quarter, even if refinancing is routine.
• Different "quick" definitions. Some sources count all receivables, others only trade receivables; some include short-term investments, others don't.

Comparison: liquidity ratios

All four use current liabilities of $165,631 million (2025) and $176,392 million (2024) as the base. For longer-term solvency, see the Debt-to-equity ratio: formula, versions and when it misleads and Interest coverage ratio: can earnings pay the interest bill?.

How Finabase does it

The Valuation tab shows Current Ratio and Quick Ratio in its Financial Health group, as ten-year annual charts from FMP data, next to Debt / Equity, Net Debt / EBITDA and Interest Coverage. The provider's quick-ratio definition may treat receivables or other current assets differently, so expect small gaps from the figures above. The tab's "Financial health" card also shows an Altman Z-Score, which uses working capital as one input.

The Financials tab has rows for cash, current investments, receivables, inventory, current assets, payables, deferred revenue, current debt and current liabilities, annual or quarterly. Click a row to chart its history, for example to see how Apple's current liabilities have moved over time. The screener doesn't filter on liquidity ratios.

Frequently asked questions

What is a good current ratio?

For many industrial companies, between about 1 and 2 is a common comfort zone, but there is no universal target. Companies with fast-moving inventory and strong supplier terms, like Apple at 0.89, can run below 1 safely.

What is the difference between the current ratio and the quick ratio?

The current ratio counts all current assets; the quick ratio leaves out inventory and prepaid items, which can't pay bills quickly. Apple's are 0.89 and 0.77.

Is a current ratio below 1 bad?

Not necessarily. It is a concern when operating cash flow is weak, inventory is slow and short-term debt needs refinancing. It is normal for cash-generative companies that are funded by their suppliers.

Why is it called the acid-test ratio?

The name borrows from the old practice of testing gold with acid: it is a harsher test of liquidity than the current ratio, because it removes assets that may not convert to cash in time.

Summary

The current, quick and cash ratios measure how well a company's short-term assets cover its short-term obligations, each with a stricter view of what counts as liquid. Apple's 0.89, 0.77 and 0.33 at the end of fiscal 2025 look thin, but they reflect supplier funding, long-dated securities kept outside current assets, and $111.5 billion of annual operating cash flow. The same numbers at a company with negative cash flow and debt to refinance would be a warning. Read these ratios alongside cash flow and the liquidity section of MD&A, and compare them only within an industry.