Liquidity ratios: types, formulas and how to use them

Published Monday 23 February 2026

Table of contents

• What is liquidity?
• What are liquidity ratios?
• Why liquidity ratios matter
• Current (working capital) ratio
• Quick (acid test) ratio
• Cash ratio
• Another metric for liquidity: days sales outstanding
• How to improve liquidity
• Using liquidity ratios
• FAQs on liquidity ratios

Key takeaways

• Calculate your current ratio monthly by dividing current assets by current liabilities, aiming for a ratio between 1.5 and 2.0 to ensure you can cover short-term expenses without taking on new debt.
• Use the quick ratio to assess your ability to cover expenses over the next three months using only cash, securities, and accounts receivable, targeting a ratio of 1.0 or higher for financial stability.
• Improve your liquidity by speeding up invoicing with accounting software and offering early payment discounts, as automated accounts receivable workflows can reduce collection time by 20-35% compared to manual processes.
• Monitor your days sales outstanding alongside liquidity ratios, aiming for 30-45 days to maintain healthy cash flow and identify opportunities to collect payments faster.

What is liquidity?

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

Cash flow issues are one of the biggest reasons new businesses shut their doors. A U.S. Bank study found that 82% of business failures are due to poor cash flow management. Liquidity ratios help you gauge your short-term financial health over the next 12 months or less.

Understanding your liquidity helps you 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 taking on new debt or selling long-term assets.

Three main liquidity ratios exist:

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

This guide covers the three main liquidity ratios, when to use each one, and how to improve your liquidity if needed. Here's what each ratio means and how to calculate it.

Why liquidity ratios matter

Liquidity ratios tell you whether your business can survive unexpected expenses, seasonal slowdowns, or delayed customer payments.

Here's why small business owners track them:

• Cash flow visibility: see at a glance if you can cover payroll, rent, and supplier bills
• Growth decisions: know when you have enough cushion to hire, expand, or invest
• Lender conversations: banks and investors often ask for liquidity ratios before approving loans
• Early warning system: spot potential cash shortfalls before they become emergencies

With only about two-thirds of small businesses surviving the first two years, tracking your liquidity ratios helps you stay ahead of trouble and make confident financial decisions.

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's expenses over the next 12 months.

Businesses use this liquidity ratio most widely because it gives you a complete picture of short-term financial health, including inventory and other assets the quick and cash ratios exclude.

Current ratio liquidity formula

Current ratio calculation

Find the numbers for this calculation on your balance sheet. Look for total current assets near the top and total current liabilities near the middle. Ignore long-term assets and liabilities.

Unlike the quick ratio, the current ratio includes your inventory. Learn more about the quick ratio vs current ratio. You typically value inventory at what you paid for it, not your selling price.

Key considerations:

• Adjust inventory value if it's worth less than cost (for example, out-of-season stock)
• Current liabilities include all bills due within 12 months
• Your bookkeeping method affects what appears on your balance sheet

Record monthly bills when you receive them so they appear on your balance sheet. An accountant or your bookkeeping software support team can help you set up accurate records.

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

Total current assets = $72,000. (Your balance sheet groups these together, so you can find the total under "current assets.")

Now find current liabilities, which includes accounts payable, payroll, sales tax, income tax payable, and short-term loans.

• If current liabilities are $100,000: $72,000 ÷ $100,000 = 0.72
• If current liabilities are $72,000: $72,000 ÷ $72,000 = 1.0

The lower your liabilities relative to assets, the higher your ratio and the more comfortably you can cover costs.

What's a good current ratio?

Aim for a current ratio between 1.5 and 2.0. This means you have $1.50 to $2 in assets for every $1 of liabilities.

• Below 1.0: consider reducing expenses or increasing assets to cover bills
• Above 3.0: you may have idle resources that could be put to better use

When to use the current ratio

Use the current ratio to guide decisions about expenses and cash management:

• Low ratio (below 1.5): consider cutting expenses or using loans instead of cash for equipment purchases
• High ratio (above 3.0): consider investing excess resources in growth opportunities

If you run a seasonal business, use additional metrics to capture cash flow fluctuations throughout the year.

The current ratio focuses on short-term health, so review long-term profitability, loan structures, and other factors separately.

Strengths:

• Calculates easily using just two balance sheet numbers
• Reveals cash flow issues quickly
• Shows ability to cover short-term expenses
• Helps identify when to take out loans or invest in growth

Limitations:

• Skews easily when either number changes significantly
• Hides seasonal cash flow fluctuations
• Covers only short-term health (12 months or less)
• Excludes insights on 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 shows whether your cash, securities, and accounts receivable can handle payroll, bills, and loan payments in the short term.

Also called the acid test ratio, the quick ratio gives you a stricter view of liquidity than the current ratio.

Quick ratio calculation

You can calculate the quick ratio two ways:

Quick ratio liquidity formula Version 1

Method 1: Add your cash + securities + accounts receivable. Divide by current liabilities.

Quick ratio liquidity formula Version 2

Method 2: Start with total current assets. Subtract inventory and prepaid expenses. Divide by current liabilities.

Both methods give you the same result.

Quick ratio example

Say you have $30,000 in the bank and $15,000 in securities. Your upcoming costs over three months total $60,000.

Quick ratio = ($30,000 + $15,000) ÷ $60,000 = 0.75

A ratio of 0.75 means you have 75 cents for every $1 of upcoming expenses, so you may need to boost cash flow or reduce costs.

What's a good quick ratio?

A quick ratio of 1.0 or higher is ideal. This means you have at least $1 to cover every $1 of upcoming expenses.

• 1.5 or above: indicates a strong position with $1.50 for every $1 of bills
• Below 1.0: consider improving cash flow to cover upcoming bills
• 0.3 or below: prioritise cash flow improvements, as you have only 30 cents for every $1 of expenses

When to use the quick ratio

Use the quick ratio to check your business's liquidity before taking on new expenses. You can also compare your ratio across different periods to spot trends.

If you're considering investing in another company, the quick ratio helps you compare financial health across businesses in the same industry.

This ratio only shows short-term health. A high ratio after a successful launch reflects current health; long-term cash flow depends on your product's staying power.

Strengths:

• Calculates easily from balance sheet data
• Shows whether you can cover short-term expenses
• Reveals cash flow trends across periods
• Helps determine if you can afford new expenses or investments

Limitations:

• Excludes operating income from the calculation
• Covers only a three-month period
• May overvalue volatile securities during unstable markets
• Can be inaccurate if accounts receivable includes uncollectable debts

Cash ratio

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

This ratio includes the fewest assets and you can calculate it fastest, making it useful for a quick snapshot of your most liquid position.

Cash ratio liquidity formula

Cash ratio calculation

When you calculate the cash ratio, only include cash in your bank accounts and securities you can cash out quickly. It excludes:

• inventory and accounts receivable (money customers owe you)
• expected future revenue

The cash ratio gives you the most conservative measure of liquidity, showing only what you could pay today without waiting for sales or collections.

Cash ratio example

Say 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 "short-term liabilities" line on your balance sheet. This includes loan payments, monthly bills, taxes due, and payroll.

• If short-term liabilities are $250,000: $100,000 ÷ $250,000 = 0.4 (you have 40 cents for every $1 of bills)
• If short-term liabilities are $25,000: $100,000 ÷ $25,000 = 4.0 (you have $4 for every $1 of bills)

What's a good cash ratio?

A cash ratio above 1.0 means you have more than enough cash to cover your short-term bills. A ratio of 0.5 or higher is generally acceptable for most businesses.

A cash ratio below 0.5: indicates a need to improve cash reserves to cover expenses. Consider getting clients to pay invoices faster or reducing discretionary spending.

When to use the cash ratio

The cash ratio reflects only part of your financial picture. If you've just invested heavily in a new product line, your ratio may be low, but your business can still be healthy.

Use the cash ratio when making decisions about expenses to judge whether you're running too low on cash.

Strengths:

• Calculates quickly with minimal data
• Provides instant insight into cash utilisation
• Shows realistic ability to cover expenses using only liquid assets

Limitations:

• Excludes operating income from the calculation
• Ignores how supplier credit and receivables cycles affect cash
• Overlooks long-term expenses and challenges

Another metric for liquidity: days sales outstanding

Days sales outstanding (DSO) measures how quickly you collect payment after a sale.

The days sales outstanding formula

Days sales outstanding (DSO) is the average number of days it takes you to get paid after a sale. To calculate it, divide your average accounts receivable by your revenue per day.

A DSO of 30 to 45 days is typical for most industries, with data showing that companies offering Net 30 terms often experience a DSO of 35–40 days. If your number is higher, you have an opportunity to free up cash by improving collections. Consider offering early payment discounts or tightening your collection process.

How to improve liquidity

Improving your liquidity gives you more flexibility to cover unexpected expenses, invest in growth, and weather slow periods. Here are practical steps:

• Speed up invoicing: use accounting software to send invoices faster and receive payments more efficiently, as automated AR workflows can reduce DSO by 20–35% compared to manual processes.
• Improve accounts receivable: offer early payment discounts and send automated reminders to reduce overdue invoices, as companies using automation can collect payments 12–18 days faster than those using manual processes.
• Optimise accounts payable: negotiate better payment terms with suppliers, focus spending on essentials, and pay on time to maintain good supplier relationships
• Reduce operating costs: lease equipment instead of buying, and sell unproductive assets to free up cash
• Manage inventory: keep stock at industry-standard levels and use just-in-time ordering to free up cash
• Increase sales: expand your customer base or introduce new offerings while maintaining operating costs
• Consider refinancing: consolidate expensive short-term debt into lower-interest loans

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

Using liquidity ratios

Calculate your liquidity ratios once a month, ideally at the same point in your billing cycle each time. Track the trend over several months to get a complete picture.

Best practices for using liquidity ratios:

• Review strengths and limitations of each ratio before drawing conclusions
• Analyse alongside solvency and efficiency ratios for a complete picture
• Work with a financial adviser when making major decisions based on these numbers

Liquidity ratios are one part of understanding your business's financial health. Get one month free and see how Xero makes it easy to track your liquidity.

FAQs on liquidity ratios

Here are answers to common questions about liquidity ratios and how to use them in your business.

What does a liquidity ratio of 2.5 mean?

A liquidity ratio of 2.5 means you have $2.50 in assets for every $1 of short-term liabilities. This is generally a healthy position, though ratios above 3.0 may indicate opportunities to put your assets to better use.

Is a high or low liquidity ratio good?

A ratio above 1.0 is generally good, meaning you can cover your short-term obligations. Aim for 1.5 to 2.0 for the current ratio. However, very high ratios (above 3.0) may indicate opportunities to put your assets to better use.

How often should I calculate my liquidity ratios?

Calculate your liquidity ratios once a month, at the same point in your billing cycle each time. This helps you spot trends and address cash flow issues before they become serious.

Do I need to calculate all three liquidity ratios?

One ratio often provides enough insight for most small businesses. The current ratio gives the broadest view and works well for most small businesses. Use the quick ratio if you carry significant inventory, and the cash ratio when you need the most conservative measure of your liquid position.