Quick Ratio or Acid Test Ratio

What is the Quick Ratio?

The quick ratio measures the liquidity of a business and its ability to meet its short term liabilities and debts. It is calculated by dividing current assets less inventory by current liabilities. It is also known as the Acid Test Ratio or Liquidity Ratio. It is similar to the current ratio except inventory is excluded from current assets in the calculation as inventory can sometimes be difficult to convert into cash.


What is the Quick Ratio Formula?

The ratio is calculated using the formula shown below.

quick ratio formula

  • Current assets are given in the balance sheet and includes cash, accounts receivable, and inventory. Prepaid expenses are excluded from the calculation.
  • Current liabilities are also found in the balance sheet and includes accounts payable and short term (due in less than 1 year) debt. There is discussion as to whether overdrafts should be included in the current ratio calculation. Strictly speaking overdrafts are payable on demand and are therefore part of current liabilities. In practice under normal circumstances, a bank will view the business relationship as an ongoing one and overdrafts could be excluded. In the balance sheet format used below overdrafts have been left out of the calculation.

How to Calculate Quick Ratio in Practice

Quick Ratio Calculation Example 1:

Example Balance Sheet at 30 September 2019
Cash 5,000
Accounts receivable 125,000
Inventory 20,000
Current assets 150,000
Long term assets 390,000
Total assets 540,000
Accounts payable 90,000
Other liabilities 10,000
Current liabilities 100,000
Long-term debt 210,000
Total liabilities 310,000
Capital 60,000
Retained earnings 170,000
Total equity 230,000
Total liabilities and equity 540,000

In the above example the current assets are 150,000, inventory is 20,000 and the current liabilities are 100,000. The quick asset ratio is calculated as follows:

Quick ratio = (Current Assets - Inventory) / Current Liabilities 
Quick ratio = (150,000 - 20,000) / 100,000 = 1.30

Quick Asset Ratio Calculation Example 2:

Example Balance Sheet at 30 September 2019
Accounts receivable 110,000
Inventory 20,000
Current assets 130,000
Long term assets 220,000
Total assets 350,000
Accounts payable 120,000
Other liabilities 40,000
Current liabilities 160,000
Long-term debt 180,000
Total liabilities 340,000
Capital 5,000
Retained earnings 5,000
Total equity 10,000
Total liabilities and equity 350,000

In Example 2 above the current assets are 130,000, inventory is 20,000 and the current liabilities are 160,000. The quick ratio is calculated as follows:

Quick ratio = (Current Assets - Inventory) / Current Liabilities 
Quick ratio = (130,000 - 20,000) / 160,000 = 0.69

Quick Ratio Analysis

It is generally considered that current assets are readily convertible to cash. However, inventory can sometimes be difficult to convert and so is excluded from current assets when calculating the ratio. What the quick asset ratio shows is the ability of the business to generate enough cash to repay its current liabilities should they all be demanded at once when the business does not have the ability or time to sell its inventory.

It example 1 above the ratio is 1.30 which means that for every 1 the business owes it can quickly generate 1.30 in cash to make payment.

In example 2 above the ratio is 0.69 and the business is only able to generate cash of 0.69 for every 1 it owes. Clearly in the unlikely event of all current liabilities being demanded at the same time the business would be unable to make payment.

An increasing quick ratio over time indicates that the business is either tying up more and more money in account receivables, which might indicate a lack of efficiency in debt collection, or it is paying its suppliers and reducing accounts payable too quickly.

A quick ratio which is reducing overtime shows that accounts receivable are reducing or that further credit is being taken from suppliers, possibly showing the onset of liquidity problems in the near future.

Useful tips for Using the Quick Ratio

  • The quick ratio will vary from industry to industry. To make comparisons you need to use a comparable business operating in your sector.
  • A quick ratio in the region of 1:1 is normally considered acceptable. The higher the ratio the more liquidity the business has. However a ratio which is too high implies a lot of money tied up in debtors or as cash sitting in the bank. It is generally accepted that money tied up in this way earns very little or nothing for the business.
  • Some businesses, particularly low margin supermarkets, operate with negative working capital which means that current assets less inventory is less than current liabilities and the quick ratio is less than 1. Providing the level of risk (in not being able to repay all liabilities on demand) is acceptable then it shows that the business is able to fund its investment in debtors using credit from its suppliers thereby reducing its borrowings.
  • A bank manager may include overdraft facilities in the calculations, and will want to see a high quick asset ratio as it shows a lower risk business.
Last modified April 3rd, 2020 by Michael Brown

About the Author

Chartered accountant Michael Brown is the founder and CEO of Double Entry Bookkeeping. He has worked as an accountant and consultant for more than 25 years and has built financial models for all types of industries. He has been the CFO or controller of both small and medium sized companies and has run small businesses of his own. He has been a manager and an auditor with Deloitte, a big 4 accountancy firm, and holds a degree from Loughborough University.

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