Liquidity ratios: types, formulas and when to use them

Published Tuesday 24 February 2026

Table of contents

• What is liquidity?
• What are liquidity ratios?
• Why liquidity ratios matter
• Types of liquidity ratios
• Current (working capital) ratio
• Quick (acid test) ratio
• Cash ratio
• Using liquidity ratios
• Other liquidity metrics to track
• How to improve liquidity
• Managing your liquidity with confidence
• FAQs on liquidity ratios

Key takeaways

• Calculate your current ratio monthly by dividing current assets by current liabilities, aiming for a healthy range of 1.5 to 2.0 to ensure you can cover expenses while avoiding excess cash that could be reinvested for growth.
• Use the quick ratio to get a stricter assessment of your liquidity by excluding inventory from current assets, as this shows whether you can cover three months of expenses with only your most liquid assets.
• Track all three liquidity ratios together rather than relying on just one, as each provides different insights into your financial health and helps you make more informed decisions about spending and investments.
• Improve your liquidity position by speeding up invoice collection, negotiating better payment terms with suppliers, and reducing unnecessary operating costs to strengthen your cash flow before problems arise.

What is liquidity?

Liquidity is how much cash, or assets you can quickly convert to cash, your business has on hand to pay its bills.

Cash flow issues are one of the biggest reasons new businesses shut their doors, with studies showing that struggles to cover basic bills put nearly one in five at risk of closure.

But it isn't always easy to tell if you have enough cash on hand. Liquidity ratios help you gauge your short-term financial health over the next 12 months or less.

Once you understand your liquidity, you can make smart decisions about operations, expenses, and investments. Without this insight, you may spend too much, grow too fast, or underuse your resources.

What are liquidity ratios?

Liquidity ratios measure the gap between your available cash and your upcoming bills. They show whether your business can cover short-term expenses without selling long-term assets or taking on new debt.

There are three widely used liquidity ratios in accounting:

• Current (working capital) ratio
• Quick (acid test) ratio
• Cash ratio

Each ratio includes different assets in its calculation, giving you a fuller picture of your financial position. Here's what each one means and how to use it.

Why liquidity ratios matter

Liquidity ratios matter because they help you make confident financial decisions. They answer a critical question: can your business pay its bills on time?

Tracking these ratios helps small business owners:

• Cash flow visibility: see whether you have enough cash to cover payroll, rent, and supplier payments
• Growth planning: know if you can afford to invest in new equipment, hire staff, or expand
• Lender confidence: show banks and investors that your business is financially stable, which is critical when only 44% of small and medium businesses report having access to financing and working capital solutions.
• Early warning system: spot potential cash shortages before they become emergencies
• Smarter spending: avoid overcommitting to expenses you can't afford

Without liquidity ratios, you're making financial decisions in the dark. With them, you can plan ahead and act with confidence.

Types of liquidity ratios

The three main types of liquidity ratios each measure your ability to pay short-term debts, but they include different assets in the calculation.

• Current ratio: includes all current assets, including inventory
• Quick ratio: excludes inventory, focusing on assets you can convert to cash within 90 days
• Cash ratio: includes only cash and cash equivalents

The current ratio gives the broadest view of your liquidity. The quick ratio provides a stricter test. The cash ratio shows your most conservative position.

Most small business owners start with the current ratio for a general health check, then use the quick or cash ratio for more specific analysis.

Current (working capital) ratio

The current ratio is your current assets divided by your current liabilities. It shows whether you have enough working capital to cover your business expenses over the next 12 months.

This is the most commonly used liquidity ratio because it provides the broadest view of your short-term financial health.

Current ratio calculation

Current ratio liquidity formula

Find the numbers for this calculation on your balance sheet:

• Current assets: listed near the top of the report
• Current liabilities: listed near the middle

You can use our free balance sheet template to organise these figures.

Unlike the quick ratio, the current ratio includes inventory. Note the following:

• Inventory valuation: uses the cost you paid, not the selling price
• Outdated inventory: adjust the value on your balance sheet if items are worth less than you paid
• Current liabilities: include all bills due within 12 months

The way you do your bookkeeping affects how liabilities appear. If you don't record monthly bills until they clear your bank account, they won't show on your balance sheet. An accountant or your bookkeeping software support team can help you set up accurate tracking.

Current ratio example

Say you have:

• $25,000 in inventory
• $30,000 in your bank account
• $10,000 in accounts receivable
• $5,000 in prepaid expenses
• $2,000 in short-term investments

Your total current assets equal $72,000. Your balance sheet groups these together, so you can find this total under "current assets."

Current liabilities include accounts payable, payroll, sales tax, income tax payable, and short-term loans.

• Example 1: $72,000 assets ÷ $100,000 liabilities = 0.72 ratio
• Example 2: $72,000 assets ÷ $72,000 liabilities = 1.0 ratio

As your liabilities decrease relative to your assets, your ratio increases, indicating stronger liquidity.

What's a good current ratio?

A current ratio between 1.5 and 2.0 is generally healthy for most small businesses and is widely considered a normal and acceptable value, indicating the business has $1.50 to $2.00 in assets for every dollar of liability.

• Below 1.0: You may struggle to cover your bills, especially during slow sales months
• 1.0 to 1.5: Adequate, but limited cushion for unexpected expenses
• 1.5 to 2.0: Healthy position with room to handle fluctuations
• Above 3.0: You may have excess cash or inventory that could be reinvested

When to use the current ratio

Use the current ratio to guide financial decisions:

• Low ratio (below 1.5): consider cutting expenses or financing large purchases with loans instead of cash
• High ratio (above 3.0): look for opportunities to reinvest excess cash or inventory into growth

Limitations:

• Seasonal businesses: the ratio may fluctuate significantly throughout the year
• Long-term factors: the ratio doesn't reflect profitability, loan terms, or future challenges
• Single metric: use alongside other financial ratios for a complete picture

The current ratio has several strengths:

• Requires only two numbers from your balance sheet
• Provides a quick assessment of cash flow health
• Helps identify when to take out loans versus use cash
• Signals when you have capacity to expand or invest

The current ratio also has limitations:

• Fluctuates significantly when either number changes
• Hides seasonal cash flow patterns
• Covers only a 12-month window
• Ignores long-term profitability and loan structures

Quick (acid test) ratio

The quick ratio measures your ability to cover expenses over the next three months without selling inventory or taking out loans. It includes cash, securities, and accounts receivable, but excludes inventory.

Quick ratio calculation

There are two ways to calculate the quick ratio:

Method 1: Add liquid assets

Quick ratio liquidity formula Version 1

1. Add cash + securities + accounts receivable
2. Divide by current liabilities

Method 2: Subtract from current assets

Quick ratio liquidity formula Version 2

1. Start with total current assets
2. Subtract inventory and prepaid expenses
3. Divide by current liabilities

Both methods produce the same result.

Quick ratio example

If you have $30,000 in the bank and $15,000 in securities, your liquid assets total $45,000. With $60,000 in expenses over the next three months, your quick ratio is 0.75.

A ratio of 0.75 means you have 75 cents for every $1 of upcoming expenses.

The quick ratio is also called the acid test ratio because it provides a fast, straightforward assessment. Your balance sheet contains all the numbers you need.

What's a good quick ratio?

A quick ratio of 1.0 or higher is generally healthy. This means you have at least $1 in liquid assets for every $1 of upcoming expenses, and some research suggests the quick ratio has a positive correlation with profitability.

• 1.5 ratio: You have $1.50 for every $1 in expenses (strong position)
• 1.0 ratio: You can just cover your bills (adequate)
• 0.3 ratio: You have only 30 cents for every $1 of bills (potential cash flow issues)

When to use the quick ratio

Use the quick ratio to:

• Compare businesses: assess potential investments or benchmark against competitors
• Track trends: monitor your liquidity over different periods
• Evaluate expenses: decide if you can afford new costs or investments

The quick ratio only shows short-term health. A high ratio after a successful launch doesn't guarantee long-term viability if your product lacks staying power.

The quick ratio has several strengths:

• Calculates quickly with standard balance sheet figures
• Shows whether you can cover short-term expenses
• Helps you compare cash flow across different periods
• Indicates whether you can afford new expenses or investments

The quick ratio also has limitations:

• Ignores operating income you expect to receive
• Covers only a three-month window
• May overvalue securities that fluctuate in volatile markets
• Can be inaccurate if accounts receivable includes uncollectable debts

Cash ratio

The cash ratio is your cash and cash equivalents divided by your current liabilities. It shows whether you can cover payroll, expenses, and loan payments using only the cash you have right now.

This is the most conservative liquidity ratio. It includes the fewest assets and provides the strictest test of your ability to pay bills.

Cash ratio calculation

Cash ratio liquidity formula

The cash ratio calculation only includes assets you can access immediately:

• Included: cash in your bank accounts and securities you can liquidate quickly
• Excluded: inventory, accounts receivable, and expected future revenue

This narrow focus makes the cash ratio useful when you need to know your worst-case liquidity position.

Cash ratio example

Imagine you have $50,000 in cash and $50,000 in stocks. Add them together to get $100,000 in cash and cash equivalents.

Now find the "current liabilities" line on your balance sheet. This includes upcoming expenses like loan payments, monthly bills, taxes due, and payroll.

• Example 1: $100,000 ÷ $250,000 in liabilities = 0.4 cash ratio (you have 40 cents for every $1 of bills)
• Example 2: $100,000 ÷ $25,000 in liabilities = 4.0 cash ratio (you have $4 for every $1 of bills)

What's a good cash ratio?

A cash ratio above 1.0 indicates your business can cover its short-term expenses with cash alone. A ratio below 1.0 means you may need other assets or income to pay your bills.

If your cash ratio is low, consider getting clients to pay invoices faster or reducing discretionary spending.

When to use the cash ratio

The cash ratio doesn't reflect every situation. If you've just invested heavily in a new product line, your ratio may be low, but that doesn't mean your business is struggling. It simply means you've chosen to deploy cash for growth.

The cash ratio has several strengths:

• Provides the fastest calculation of all liquidity ratios
• Offers a realistic view of your ability to cover expenses immediately
• Excludes inventory and receivables that may be difficult to convert quickly

The cash ratio also has limitations:

• Ignores operating income you're likely to receive
• Doesn't account for supplier credit terms or receivables cycles
• Provides no insight into long-term financial health

Using liquidity ratios

Follow these best practices when tracking your liquidity ratios:

• Calculate monthly: choose the same day each month to account for billing cycle variations
• Track trends: a single ratio is less useful than seeing how it changes over time
• Know the limitations: each ratio tells part of the story, not the whole picture
• Combine with other metrics: analyse alongside solvency and efficiency ratios for a complete view
• Consult an advisor: work with an accountant or financial advisor for important decisions

When using accounting software like Xero, you can view your quick ratio at any time from your dashboard.

Other liquidity metrics to track

Beyond the three main liquidity ratios, other metrics can provide additional insight into your cash position.

Days sales outstanding

Days sales outstanding (DSO) measures the average number of days it takes to collect payment after a sale. A lower DSO means faster cash collection and better liquidity.

The days sales outstanding formula

To calculate DSO:

1. Find your average accounts receivable
2. Divide by your revenue per day
3. The result is your DSO in days

If your DSO is high, your customers are taking too long to pay, which ties up your cash. For example, a DSO of 85 days might be an industry standard for an industrial manufacturer but a concerning figure for a retail business.

Consider offering early payment discounts or tightening your collection process.

How to improve liquidity

If your liquidity ratios are lower than you'd like, take these steps to strengthen your cash position:

• Speed up invoicing: use accounting software like Xero to send invoices faster and receive payments more efficiently
• Improve accounts receivable: offer early payment discounts, send automated reminders, and follow up on overdue invoices promptly
• Optimise accounts payable: negotiate favourable payment terms with suppliers, use extended terms where appropriate, and cut non-essential spending
• Reduce operating costs: lease equipment instead of buying, sell unproductive assets, and review expenses regularly
• Manage inventory: keep stock levels at industry standards and use just-in-time ordering to avoid tying up cash
• Increase revenue: expand your customer base or introduce new products without proportionally increasing costs
• Refinance debt: consolidate expensive short-term loans into lower-interest options

Your accountant can help you prioritise these actions. Find experienced accountants and bookkeepers in the Xero advisor directory.

Managing your liquidity with confidence

Liquidity ratios give you a clear view of your short-term financial health. By tracking your current, quick, and cash ratios regularly, you can make informed decisions about expenses, investments, and growth.

Xero's cloud accounting software calculates your quick ratio automatically, giving you real-time visibility into your financial health. Get one month free and see how Xero simplifies financial management for your small business.

FAQs on liquidity ratios

Here are answers to common questions about liquidity ratios.

What does a liquidity ratio of 2.5 mean?

A liquidity ratio of 2.5 means your business has $2.50 in assets for every $1.00 of short-term liabilities. This indicates a strong position to cover upcoming expenses.

What does a high liquidity ratio mean?

A high liquidity ratio means your business can easily pay its short-term debts. However, a ratio above 3.0 may indicate excess cash or inventory that could be reinvested for growth. Research has found a negative relationship between liquidity and profitability.

Which liquidity ratio is most important for small businesses?

The current ratio is typically most useful for small businesses because it provides the broadest view of short-term financial health. Use the quick ratio for a stricter assessment that excludes inventory.

Can a liquidity ratio be too high?

Yes. A ratio above 3.0 suggests you may have idle cash or excess inventory. Consider reinvesting in growth opportunities or paying down debt.

How often should I calculate my liquidity ratios?

Calculate your liquidity ratios monthly, ideally on the same day each month. This helps you track trends and spot potential cash flow issues before they become problems.