Liquidity metrics measure a business's ability to meet short-term obligations. The current ratio, quick ratio and cash ratio compare current assets, in decreasing order of how readily they convert to cash, against current liabilities.
What liquidity metrics measure
All of them ask the same question in slightly different ways: if the money you owe in the next twelve months came due, could you cover it. The difference between them is how generous they are about what counts as available.
| The formula | What it assumes, and where that breaks | |
|---|---|---|
| Current ratio | Current assets divided by current liabilities. | Assumes inventory and receivables convert to cash on schedule. Slow stock and a large overdue debtor both flatter it. |
| Quick ratio | Current assets less inventory, divided by current liabilities. Also called the acid test. | Strips out inventory but still trusts receivables. Useful the moment stock is a meaningful part of the balance sheet. |
| Cash ratio | Cash and cash equivalents divided by current liabilities. | Assumes nothing. The most conservative of the three, and the closest to the question a lender is actually asking. |
Working capital, current assets minus current liabilities, is the same idea expressed as a dollar figure rather than a ratio. The balances behind all of them are prepared under the AASB accounting standards, and directors carry a standing obligation to satisfy themselves the company can pay its debts as they fall due, which ASIC sets out for directors.
Corporate liquidity is not market liquidity
The same word covers two unrelated ideas and the search results mix them. Corporate liquidity, the subject of this page, is a balance sheet property: can this business pay what it owes. Market liquidity is a property of an asset: can it be bought or sold without moving the price, measured by things like bid-ask spread, order book depth and volume against market capitalisation.
They are only connected at the edges. A company holding listed securities cares about market liquidity because it affects how quickly those holdings convert to cash. For an Australian startup holding cash at a bank and nothing else, market liquidity is not the conversation.
Why the textbook thresholds mislead a startup
You will read that a current ratio around 2 is healthy and below 1 is a warning. That guidance came from mature businesses with steady trading and inventory. A venture-backed company that just closed a round has an enormous ratio and no revenue, and a fast-growing one spending its raise has a shrinking ratio while everything is going to plan. Neither is telling you what you want to know.
For an early-stage company the honest liquidity metrics are runway in months, net burn against the last raise, and the amount and timing of committed cash coming in. The ratios still matter when a bank, a lender or an acquirer is in the room, because that is the language they read in. Being able to say a business is in a good position with no cash flow issues, and have it stand up to a buyer's diligence, is a real asset in an acquisition process.[1]
Liquidity tells you where you stand. The cash conversion cycle tells you why you got there.
Who owns the cash position in a growing company
Early on, the founder. That works while the business is simple, and then it stops. Founder-led finance does not scale at all, and it eventually runs its course, leaving a scrambled financial model and cash conversations that are more of a guess than an answer.[2] Cash is the area where guessing is most expensive, because the consequence is not a bad report, it is a decision you cannot reverse.
The shift founders notice is not a new dashboard. By around day 60 with a proper first finance hire, reports come proactively, the cash position is easily explainable, forecasts are realistic and there is less last-minute scramble before a board meeting, and the change founders remark on most is simply that fewer finance questions land on their desk.[3]
What this says about who you hire next
If the pressure is a capital raise rather than day-to-day control, a fractional arrangement is often the right answer first. For companies that are too early for a permanent hire I refer them on to fractional CFOs who are genuinely excellent at capital raises and everything around them.[4] That is not a lesser option, it is a different one.
Once the conversation moves to banks and funders, the profile changes. In early-stage CFO and Head of Finance roles, founders look for direct ownership and operational experience alongside the strategic work, someone who acts as their commercial eyes and ears and who has demonstrated credibility with banks, funders or investors.[5] Credibility with a lender is not a line on a CV. It is the difference between a facility being extended and a facility being repriced.
Investors read the same ratios you do. Here is what they look for in a finance function.
Common questions
What are the main liquidity metrics?
The three common balance sheet ratios are the current ratio (current assets over current liabilities), the quick ratio or acid test (current assets less inventory, over current liabilities), and the cash ratio (cash and equivalents over current liabilities). Working capital expresses the same idea in dollars rather than as a ratio. They differ only in how generous they are about what counts as available to pay a bill.
What is the difference between the current ratio and the quick ratio?
The quick ratio removes inventory from current assets. That single change matters because inventory is the current asset least likely to convert to cash quickly, and often the one carried at a value the market will not pay. For a business with no inventory the two ratios are nearly identical. A hardware, retail or deep tech business can see them tell very different stories.
Is a current ratio of 2 good?
It is the conventional benchmark and it comes from mature trading businesses, so treat it carefully in a startup. A company that has just closed a funding round will show an enormous ratio with no revenue behind it, and a fast-growing company spending that raise will show a falling ratio while executing exactly to plan. For an early-stage business, runway in months and net burn are the more honest liquidity measures. The ratios matter most when a bank, lender or acquirer is reading them.
Is liquidity the same as solvency?
No. Liquidity is about the short term: can you meet obligations as they fall due over the next twelve months. Solvency asks the broader question of whether total assets exceed total liabilities over time. A business can be solvent on paper and illiquid in practice, which is the more common failure. Australian directors carry a specific duty around paying debts as they fall due, which is why the short-term measures get the attention they do.
References
- From a live client situation: they recently completed one acquisition and are preparing for another, and are in a good position with no cash flow issues.
- My view on founder-led finance: it does not scale at all, and eventually runs its course as a business grows, leading to a scrambled financial model and cash conversations that are more of a guess.
- What founders tell me they notice: by day 60 they see reports produced proactively, an easily explainable cash position, realistic forecasts and less last-minute board preparation scramble, with the most noticeable change being fewer finance questions directed at them.
- How I handle companies that are too early for a search: I refer them freely to my network of great fractional CFO people, who are fantastic at capital raises and all the rest of it. Tom talks about how Story Recruitment works with early-stage founders in an interview on the Honest Wealth Builders podcast.
- What founders brief me on for early-stage CFO and Head of Finance roles: direct ownership and operational experience alongside strategic work, someone operationally focused who can act as their commercial and strategic eyes and ears, with demonstrated credibility with banks, funders or investors.