Quick Ratio (Acid Test) Explained | Spark Finance
Skip to main content
Spark Finance
Call us: Mon-Fri: 8am-6pmFCA Authorised · FRN 958123
Back to Cash Flow Academy
Cash Flow Academy

Quick Ratio (Acid Test Ratio)

The quick ratio, also known as the acid test ratio, measures a business's ability to meet its short-term liabilities using only its most liquid assets. Unlike the current ratio, it excludes stock, which may take time to sell or may not realise full value at short notice.

Compare Invoice Finance OptionsSpeak to a Finance Expert

Quick ratio formula

Quick Ratio = (Cash + Short-term Investments + Trade Debtors) / Current Liabilities. Or more simply: (Current Assets - Stock) / Current Liabilities.

  • Excludes inventory and prepaid expenses from the numerator
  • Focuses on assets that can be converted to cash quickly (within 90 days)
  • A ratio of 1.0 means liquid assets exactly cover current liabilities

Quick ratio vs current ratio

The current ratio includes all current assets, including stock. The quick ratio is more conservative because it only includes assets that can be turned into cash relatively quickly. For businesses carrying significant stock values, the quick ratio may paint a materially different picture from the current ratio.

What a low quick ratio means

A quick ratio below 1.0 means the business cannot immediately cover its current liabilities from its liquid assets alone. It would need to sell stock or access additional financing. This is not necessarily a crisis if the business has strong cash flow, but it is a warning sign that warrants attention.

Frequently Asked Questions

What is the ideal quick ratio?

A quick ratio of 1.0 or above is generally considered acceptable. Ratios significantly above 1.5 may suggest excess cash that could be better deployed in the business. Ratios below 0.7 may concern lenders.

Ready to secure your funding?

Check your eligibility

in 60 seconds