Working capital: formula, ratio, and how to improve

Published Saturday 28 February 2026

Table of contents

• What is working capital?
• How to calculate working capital
• The importance of working capital in business
• Working capital examples in different businesses
• What is net working capital?
• Working capital vs cash flow: what's the difference?
• How to manage your working capital
• Improve your working capital with Xero
• FAQs on working capital

Key takeaways

• Calculate your working capital regularly by subtracting current liabilities from current assets to ensure you have enough short-term resources to cover upcoming expenses and maintain healthy cash flow.
• Optimize your inventory levels to free up cash without missing sales opportunities, as excess stock ties up working capital while understocking leads to lost revenue.
• Speed up your cash collection by automating invoicing, offering early payment discounts to customers, and following up on overdue accounts to reduce the time between completing work and receiving payment.
• Monitor your working capital ratio and aim for 1.2-2.0 for most small businesses, with service companies operating closer to 1.2 and retail or manufacturing businesses needing ratios closer to 2.0 due to inventory requirements.

What is working capital?

Working capital measures your business's short-term financial health. It's the money left over after subtracting what you owe (current liabilities) from what you own (current assets) over the next 12 months.

A positive number means you can cover your bills. A negative number signals potential cash flow problems.

Current assets and liabilities

Current assets are anything you can convert to cash within 12 months:

• Cash: money in hand or in bank accounts
• Accounts receivable: payments customers owe you
• Inventory: products you can sell
• Prepaid expenses: costs you've paid in advance
• Short-term investments: assets you can liquidate quickly
• Tax refunds: money owed to you by the government

More about current assets

Current liabilities are debts and expenses due within 12 months:

• Accounts payable: bills you owe to suppliers
• Loan payments: principal and interest due this year
• Accrued expenses: wages, utilities, and fees not yet paid
• Deferred revenue: payments received for work not yet completed

More about current liabilities

How to calculate working capital

To calculate working capital, subtract your current liabilities from your current assets:

Working capital = current assets − current liabilities

You'll need to project both figures for the next 12 months. Accounting software like Xero makes this easy by pulling data directly from your balance sheet and financial reports.

Here's how Xero financial reports can help you.

A working capital formula example

Here's how a retail florist calculates their working capital:

1. Add up current assets: cash, inventory, and receivables total $100,000 for the next 12 months
2. Add up current liabilities: accounts payable, loan payments, and accrued expenses total $75,000
3. Apply the formula: $100,000 − $75,000 = $25,000 in positive working capital

This florist has enough assets to cover their liabilities and reinvest the surplus.

Working capital vs working capital ratio

Working capital and the working capital ratio measure the same data differently:

• Working capital: a dollar amount (current assets minus current liabilities)
• Working capital ratio: a proportion (current assets divided by current liabilities)

For example, if you have $100,000 in assets and $75,000 in liabilities:

• Working capital = $25,000
• Working capital ratio = 1.33

The ratio helps you compare financial health across businesses of different sizes. Here's more about the working capital ratio.

The importance of working capital in business

Working capital matters because it reveals whether your business can pay its bills, survive slow seasons, and fund growth.

Working capital supports:

• Operational stability: covers day-to-day expenses like payroll, rent, and supplies
• Market resilience: provides a buffer during slow periods or unexpected costs
• Growth potential: funds new inventory, equipment, or expansion without borrowing
• Lender confidence: banks and investors evaluate working capital to assess your financial health

Positive vs negative working capital

Your working capital result tells you where your business stands financially:

• Positive working capital: your assets exceed your liabilities. You can pay bills on time and reinvest surplus cash into growth.
• Negative working capital: your liabilities exceed your assets. You may struggle to cover debts without borrowing or raising funds. Ongoing negative working capital signals financial trouble.
• Neutral working capital: assets and liabilities are roughly equal. This works if you're converting inventory to cash quickly, but leaves little buffer for unexpected costs.

Extremes aren't ideal. Low working capital limits reinvestment. Very high working capital may mean you're not putting cash to work through innovation or expansion.

Working capital examples in different businesses

Good working capital varies by industry. A retail business with high inventory needs more working capital than a consulting firm with minimal stock. How long it takes to turn inventory into cash, your cash flow patterns, and what assets you hold all affect how much working capital you need.

Here's what working capital looks like across different business types.

Working capital in construction and manufacturing

Construction and manufacturing businesses face irregular cash flow due to long project timelines. You often pay for materials, subcontractors, and labor upfront but don't get paid until the project finishes. This makes working capital essential for covering costs between payments.

Here's an example from a building materials manufacturer:

• Current assets: cash ($100,000) + accounts receivable ($200,000) + inventory ($300,000) = $600,000
• Current liabilities: accounts payable ($150,000) + short-term loans ($100,000) + accrued expenses ($50,000) = $300,000
• Working capital: $600,000 − $300,000 = $300,000 positive

This manufacturer has enough assets to cover liabilities and handle unexpected market changes.

Working capital in service businesses

Service businesses like consultancies and agencies typically need less working capital than product-based companies because they don't hold inventory.

However, service businesses still need working capital for:

• Accounts receivable gaps: you invoice clients but may wait 30–60 days for payment
• Payroll: staff salaries must be paid regardless of when clients pay
• Operating costs: rent, software, and project expenses continue between payments

Working capital in retail

Retail, wholesale, and hospitality businesses typically need higher working capital because they hold significant inventory.

Key considerations for these industries:

• Seasonal demand: you need cash to stock up before peak periods
• Inventory investment: money tied up in stock isn't available for other expenses
• Revenue timing: sales must convert to cash quickly to replenish working capital

Balance your stock levels with how quickly you sell to keep working capital healthy. Overstocking ties up cash. Understocking means missed sales.

What is net working capital?

Net working capital (also called operating working capital) measures operational efficiency by excluding cash and debt from the calculation.

Here's how it differs from standard working capital:

• Working capital: includes all current assets and liabilities
• Net working capital: excludes cash (asset) and short-term debt (liability)

Use net working capital for longer-term financial assessments, especially if you're expanding. It's particularly useful in retail, manufacturing, and distribution where small margins mean running efficiently is key to making money.

The net working capital formula

Look again at the florist example. Suppose their current assets include $20,000 in cash, and their current liabilities include $10,000 in loan debts. The new formula for their net working capital is $80,000 ($100,000 – $20,000) – $65,000 ($75,000 – $10,000) = $15,000.

Working capital vs cash flow: what's the difference?

Working capital and cash flow measure different aspects of your finances:

• Working capital: the money left after covering upcoming costs (a snapshot of financial health)
• Cash flow: how money moves in and out of your business over time (a view of liquidity)

For example, Xero's short-term cash flow projection shows total money in and out for the next 90 days. This tells you about immediate liquidity but doesn't capture the full picture of assets, liabilities, and long-term business health that working capital provides.

How to manage your working capital

Managing your working capital keeps your business financially stable and ready for growth. Strong working capital management helps you pay bills on time, take advantage of opportunities, and avoid cash crunches.

Here's how to improve your working capital.

Manage your inventory

• Optimize stock levels: keep enough inventory to meet demand without tying up excess cash in unsold goods
• Accelerate turnover: offer promotions or discounts on slow-moving stock to free up cash faster
• Automate tracking: use inventory management software to monitor stock in real time, forecast demand, and trigger automatic reorders

Check out Xero's inventory management guide for more advice and learn more about Xero's inventory management features.

Control your expenses

• Audit your spending: identify where you can reduce costs without affecting quality or operations
• Prioritize growth investments: cut non-essential expenses and focus on spending that drives revenue
• Streamline processes: cut unnecessary steps to reduce waste and work more efficiently

Learn more about tracking business expenses.

Monitor your cash flow

• Track inflows and outflows: check your cash flow regularly to anticipate shortages or surpluses before they happen
• Build a reserve: set aside a portion of profits as a buffer for slow periods or unexpected expenses
• Project ahead: use cash flow forecasting to plan for seasonal changes and spending on growth

Here's more info about projecting cash flow. Check out Xero's cash flow guide for additional advice.

Invest in software tools to streamline your operations

Accounting software like Xero helps you manage working capital by automating key financial tasks:

• Automated invoicing: generate and send invoices automatically, track payment status, and follow up on overdue accounts to reduce payment delays
• Payment management: send automatic reminders and offer multiple payment options to get paid faster
• Expense tracking: monitor spending in real time to control costs and protect your cash
• Cloud access: manage finances from anywhere to respond to cash flow issues as they arise

These features give you more control over your financial position, helping you maintain healthy working capital and support growth.

Here's how Xero can help you manage your working capital.

Improve your working capital with Xero

Xero accounting software helps you manage working capital by tracking assets and liabilities while streamlining invoicing and payments.

With Xero, you can:

• Automate invoicing and payments to get paid faster
• Track inventory to optimize stock levels
• See your finances as they happen to make better decisions
• Monitor expenses to control costs
• Forecast cash flow to plan for growth

Here's more about how Xero can help your business. Ready to improve your working capital management? Get one month free.

FAQs on working capital

Here are answers to some common questions about working capital.

What is working capital in simple words?

Working capital is the money your business has available to pay its bills. It's what's left when you subtract what you owe from what you own. Positive working capital means you can cover expenses. Negative working capital means you may need to borrow.

What are three examples of working capital?

Common examples of working capital include:

• Cash in your bank account: immediately available to pay expenses
• Accounts receivable: money customers owe you for completed work
• Inventory: products you can sell and convert to cash

These current assets, minus your current liabilities, make up your working capital.

What is good working capital?

Good working capital depends on your industry and business model. Generally, you want enough to cover 3–6 months of operating expenses. Retail and manufacturing businesses typically need more working capital than service businesses because they hold inventory. The key is having enough to pay bills, handle unexpected costs, and invest in growth without excess cash sitting idle.

What is a good working capital ratio for small businesses?

A good working capital ratio for small businesses is typically 1.2–2.0. A ratio below 1.0 means you don't have enough assets to cover your debts.

Industry benchmarks vary:

• Service businesses: may operate well with ratios closer to 1.2
• Retail and manufacturing: often need ratios closer to 2.0 due to inventory requirements

How can I improve working capital ratio?

Start improving your working capital ratio today:

• Speed up invoicing: send invoices immediately to reduce payment turnaround time
• Negotiate payment terms: ask suppliers for longer terms to slow cash outflows
• Offer early payment discounts: encourage customers to pay sooner
• Control overheads: cut non-essential spending to boost your asset position

Find out how Xero accounting software makes invoicing easy.

What happens if my working capital ratio is too low?

A low working capital ratio means your business may struggle to cover short-term debts. If this continues, you risk insolvency. Warning signs include late payments to suppliers, missed payroll, and relying on credit to cover daily expenses. Address low working capital quickly by speeding up collections, reducing expenses, or looking into loans or other funding.

What is a working capital loan?

A working capital loan provides short-term funding to cover day-to-day business operations when cash flow is tight. It's typically a last resort after other efforts to improve haven't worked. Before taking on new debt, consult a financial advisor to explore all options.

Small Business Administration (SBA)-backed loans make it easier for small businesses to get funding.

Is working capital the same as liquidity?

Not quite. Liquidity measures how easily you can convert assets to cash to cover upcoming costs. Working capital measures how much money remains after you've covered those costs. A business can be liquid (able to pay bills quickly) but still have low working capital if assets and liabilities are nearly equal.