Liquidity ratios are the family of measures that ask how far a business’s near-term resources cover what falls due, and the three in common use set some part of its current assets against its total current liabilities, both read off one balance sheet at one date. The term is a family name rather than one computed figure: those three keep that denominator and narrow the numerator one rung at a time, starting from total current assets. No accounting standard fixes the membership of the family or the wording of any member. Ratios of this kind are calculated from information on financial statements rather than presented on them (SEC, Beginners’ Guide to Financial Statements).
How the Numerator Narrows
The denominator stays total current liabilities, so the three differ only in what each one counts as available. The widest takes total current assets, and that quotient is the current ratio. The next drops to quick assets, meaning cash and cash equivalents plus marketable securities plus net current receivables, and that is the quick ratio, also called the acid test ratio; which balance sheet lines survive that narrowing is settled there. The narrowest in common use is the cash ratio, which keeps cash and cash equivalents alone: cash equivalents are short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates (FAS 95, paragraph 8).
Each numerator sits inside the one before it and the denominator never moves, so one sheet always produces the readings in that order: the current ratio is never below the quick ratio, and the cash ratio never above either.
Say a client’s current lines at year end are the ones below.
Cash and cash equivalents 100,000
Accounts receivable, net 200,000
Inventories 300,000
Total current assets 600,000
Total current liabilities 400,000
current ratio 600,000 / 400,000 = 1.50
quick ratio (100,000 + 200,000) / 400,000 = 0.75
cash ratio 100,000 / 400,000 = 0.25One page, three answers, in that order. Each of the three presupposes a sheet carrying a current split, the presentation classified balance sheet turns on, so each is only as settled as the classification behind current assets and current liabilities.
What the Three Cannot Show
Timing. Each of the three reads balances at one date and records nothing about when a balance moves, so none can say whether the cash arrives before the payment leaves. The same working capital read in days is the cash conversion cycle, and read as a dollar difference it is net working capital.
What Is Not a Liquidity Ratio
Any measure that takes both blocks on both sides. Total assets over total liabilities, and the leverage readings in asset to liabilities ratio and debt to asset ratio analysis, reach past the current block to the whole sheet rather than to the coming months. Whether a business keeps meeting what it owes over the long run is solvency.
Common Questions
No authority fixes a count. The three that share the total current liabilities denominator are the current ratio, the quick ratio and the cash ratio, in that order, so a longer list adds members rather than changing that ladder.
The widest member under another name, total current assets over total current liabilities, worked through in current ratio. The word current describes the balances being counted, not how recent the reading is.
It depends which member produced it, since one sheet can give a different figure at every rung. Read as a current ratio it means total current assets are half again total current liabilities, and what that cushion holds is in acid test ratio vs current ratio.
Accountably places trained offshore accountants and tax preparers inside US CPA and EA firms, and a firm can put a block of its own close and ratio schedule work through a trial task before anything client facing depends on it.
