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Microlesson · 5-min read

Liquidity Ratios

# Liquidity Ratios

Liquidity ratios measure a firm's ability to meet short-term financial obligations (current liabilities). They look at how readily current assets can be converted to cash.

## 1. Current Ratio

$$\text{Current Ratio} = \frac{\text{Current Assets}}{\text{Current Liabilities}}$$

  • A standard benchmark: 2 : 1.
  • Includes inventories and prepaid expenses in CA.

## 2. Quick / Acid Test Ratio

$$\text{Quick Ratio} = \frac{\text{Quick Assets}}{\text{Current Liabilities}}$$

Where Quick Assets = Current Assets − Inventories − Prepaid Expenses.

  • Benchmark: 1 : 1. Removes the least-liquid items (stock and prepaids).

## 3. Absolute Cash Ratio (Absolute Liquidity Ratio)

$$\text{Cash Ratio} = \frac{\text{Cash} + \text{Marketable Securities}}{\text{Current Liabilities}}$$

Most stringent test. Cash + Marketable Securities includes:

  • Cash in Hand
  • Cash at Bank (Dr balance)
  • Marketable Investments / Short-term securities (current investments)

## 4. Basic Defence Interval (Days)

$$\text{BDI} = \frac{\text{Quick Assets}}{\text{Cash Expenses per Day}} \quad \text{(in days)}$$

Where:

  • Cash Expenses per Day = Annual Cash Expenses / 365
  • Cash Operating Expenses = COGS + Selling/Admin/Other Expenses (excluding depreciation & non-cash items)
  • Cash Expenses = Total Expenses − Depreciation − Write-offs

Significance: How many days the firm can keep meeting cash operating expenses purely out of its quick assets — i.e., how long it can defend itself in a no-cash-inflow scenario.

## How They Differ

RatioIncludes Stock?Includes Prepaids?Includes Receivables?
Current
Quick
Absolute Cash

Each ratio peels back a layer of liquidity to test progressively stricter solvency.

Worked example

### Example 1

Example: Current Assets ₹6,00,000 (incl. Stock ₹2,00,000, Prepaids ₹50,000, Cash ₹1,00,000, Marketable Securities ₹50,000, Debtors ₹2,00,000); Current Liabilities ₹3,00,000.

  • Current Ratio = 6,00,000 / 3,00,000 = 2 : 1
  • Quick Assets = 6,00,000 − 2,00,000 − 50,000 = ₹3,50,000; Quick Ratio = 1.17 : 1
  • Cash Ratio = (1,00,000 + 50,000) / 3,00,000 = 0.5 : 1.

### Example 2

Example (Basic Defence Interval): Quick Assets = ₹7,30,000; Annual Cash Expenses = ₹36,50,000. Cash Expenses per Day = 36,50,000 / 365 = ₹10,000. BDI = 7,30,000 / 10,000 = 73 days. The firm can fund its operating expenses for 73 days without fresh inflows.

⚠️ Common exam mistakes

  • Treating Prepaid Expenses as a quick asset — they cannot be converted to cash and must be excluded.
  • Including Inventories in the Cash Ratio — only cash and marketable securities qualify.
  • Including depreciation when computing 'Cash Expenses per Day' for Basic Defence Interval — depreciation is non-cash.
  • Using gross current assets without netting off prepayments/inventories when asked for quick ratio.
Reference:
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