Free cash flow
Free cash flow shows the cash your business has left after operating costs and capital spending.
Published Wednesday 12 August 2026
Table of contents
Free cash flow formula.
Key takeaways
- Free cash flow shows the actual cash your business generates after paying for capital expenditures, giving you a clearer picture than profit alone.
- Tracking free cash flow helps you plan for growth, manage debt, and make confident decisions about reinvesting in your business.
- You calculate free cash flow by subtracting capital expenditures from operating cash flow, using figures from your cash flow statement.
- Positive free cash flow over several quarters signals financial health, while negative free cash flow may indicate heavy investment or potential cash shortages.
What is free cash flow?
Free cash flow (FCF) is the cash your business generates from its operations after subtracting capital expenditures. It represents the money left over once you've covered the costs of maintaining or expanding your assets.
For small business owners, free cash flow bridges the gap between profit on paper and actual cash in the bank. Your income statement might show a healthy profit, but if that money is tied up in equipment purchases or outstanding invoices, you won't have cash available to pay suppliers, cover wages, or invest in growth. Free cash flow tells you what's truly available to spend, save, or distribute.
Why free cash flow matters
Cash flow challenges remain a pressing concern for South African businesses. The Small Business Growth Index for the second half of 2025 found that 41.9% of SMEs reported weak or critical cash flow. Understanding your free cash flow helps you avoid becoming part of that statistic.
Free cash flow reveals your true spending power. While revenue and profit metrics show performance, FCF shows what you can actually do with that performance. It answers practical questions: Can you afford new equipment? Should you take on a new project? Is there enough buffer for unexpected expenses?
Planning ahead becomes easier when you know your free cash flow. You can forecast whether you'll have funds for expansion, seasonal fluctuations, or loan repayments without scrambling at the last minute.
Lenders and investors pay close attention to free cash flow because it demonstrates your ability to generate cash independently. A business with consistent positive FCF is more likely to meet debt obligations and provide returns.
Smarter decisions follow from understanding FCF. When you see exactly how much cash remains after essential spending, you can weigh opportunities against real resources rather than projected profits.
Free cash flow formula
The standard formula for free cash flow is straightforward:
Free cash flow = operating cash flow − capital expenditures
Operating cash flow (OCF) is the cash generated from your core business activities. It includes money received from customers minus cash paid for operating expenses such as rent, wages, and supplies. You'll find this figure in the operating activities section of your cash flow statement.
Capital expenditures (CapEx) are purchases of long-term assets that help your business operate. These include vehicles, machinery, computers, and property improvements. Unlike day-to-day expenses, capital expenditures are investments in assets you'll use for years.
How to calculate free cash flow
Calculating free cash flow takes just a few steps once you have your financial records in order. Here's how to work through the process.
1. Locate your operating cash flow
Find the operating cash flow figure on your cash flow statement. If you use Xero accounting software, you can generate this report directly from your dashboard. The operating cash flow section shows cash received from sales and cash paid for operating costs during a specific period.
2. Identify your capital expenditures
Review your records for purchases of fixed assets during the same period. Look for payments on vehicles, equipment, property, or major upgrades. These appear in the investing activities section of your cash flow statement or in your fixed asset register.
3. Subtract capital expenditures from operating cash flow
Apply the formula: take your operating cash flow and subtract your capital expenditures. The result is your free cash flow for that period. A positive number means you generated surplus cash; a negative number indicates your capital spending exceeded the cash from operations.
4. Review and compare across periods
Calculate FCF for multiple periods to spot trends. Comparing quarter over quarter or year over year helps you understand whether your cash generation is improving, declining, or fluctuating seasonally.
Free cash flow calculation example
Consider a small bakery in Johannesburg reviewing its annual finances. The business generated R850,000 in operating cash flow from selling baked goods and catering services. During the same year, the owner spent R200,000 on a new bakkie for deliveries and upgraded baking equipment.
Using the formula:
Free cash flow = R850,000 − R200,000 = R650,000
This R650,000 represents the cash available for the owner to save, reinvest, pay down debt, or draw as income.
Now imagine a different scenario. Operating cash flow drops to R600,000 due to slower sales, and the owner spends R350,000 on a used delivery vehicle.
Free cash flow = R600,000 − R350,000 = R250,000
The reduced FCF signals less flexibility. The owner might delay other purchases or focus on boosting revenue before making further investments.
How free cash flow compares to other financial metrics
Free cash flow is one of several metrics that measure financial performance. Understanding how it differs from related measures helps you use each appropriately.
- Cash flow: cash flow tracks all cash moving in and out of your business, including financing and investing activities. Free cash flow focuses specifically on what remains after capital spending.
- Working capital: working capital measures your short-term liquidity by comparing current assets to current liabilities. FCF measures cash generation over a period rather than a balance at a point in time.
- Net profit: net profit is an accounting measure that includes non-cash items like depreciation and accrued revenue. FCF reflects actual cash, which may be higher or lower than reported profit.
- EBITDA: earnings before interest, taxes, depreciation, and amortisation ignores capital expenditures entirely. FCF subtracts real capital spending, so it better reflects the cash actually available to your business.
Types of free cash flow
Beyond the standard calculation, analysts sometimes use two variations of free cash flow to understand how cash is distributed among different stakeholders.
Free cash flow to the firm (FCFF) represents the cash available to all providers of capital, including lenders and shareholders. It's calculated before subtracting interest payments and debt repayments, showing what the entire business generates regardless of how it's financed.
Free cash flow to equity (FCFE) is the cash remaining for owners after the business has met its interest and debt obligations. This figure matters most if you want to know what you, as the owner, can actually take out or reinvest.
For most small businesses, the standard free cash flow formula provides sufficient insight. FCFF and FCFE become more relevant when you're raising outside capital or managing significant debt.
How to interpret free cash flow
A single FCF figure offers limited insight. The real value comes from analysing trends and context over time.
Positive free cash flow generally indicates financial health. Your operations generate more cash than you need for capital investments, leaving surplus for savings, debt reduction, or growth initiatives.
Negative free cash flow isn't automatically a warning sign. If you're investing heavily in equipment or expansion, negative FCF may reflect strategic spending rather than operational problems. However, persistent negative FCF without corresponding growth warrants closer examination.
Review FCF over three to four quarters to identify patterns. Seasonal businesses may show negative FCF in slow periods and strong positive FCF during peak seasons. Year-over-year comparisons reveal whether your cash generation is improving.
Free cash flow margin offers a simple benchmark. Calculate it by dividing free cash flow by revenue and expressing the result as a percentage. A higher margin means you convert more of each rand in sales into available cash. Tracking this percentage over time shows whether your efficiency is improving.
How to improve free cash flow
Strengthening your free cash flow requires attention to both the cash coming in and the cash going out. These practical steps can help.
- Speed up collections: send invoices promptly and follow up on overdue payments. Using online invoicing with payment links makes it easier for customers to pay quickly.
- Negotiate better supplier terms: ask suppliers for extended payment terms or early payment discounts. Even an extra 15 days can ease cash flow pressure.
- Review expenses regularly: audit your recurring costs to identify subscriptions, services, or contracts you no longer need. Small savings accumulate over time.
- Manage inventory carefully: excess stock ties up cash. Order based on demand patterns and consider just-in-time purchasing where practical.
- Time capital expenditures strategically: spread large purchases across periods when cash flow is strongest, or consider leasing instead of buying outright.
- Increase revenue strategically: focus on higher-margin products or services, or find ways to increase average transaction values without proportionally increasing costs.
For more guidance, explore the managing cash flow guide.
Benefits and limitations of free cash flow
Free cash flow is a valuable metric, but it works best alongside other financial measures. Here's what it does well and where it falls short.
Benefits:
- Shows actual cash available, not accounting profits that may include non-cash items
- Helps you plan for investments, debt repayments, and distributions
- Provides a clear signal to lenders and investors about financial health
- Reveals whether growth is sustainable or dependent on external funding
Limitations:
- Can fluctuate significantly based on the timing of large capital purchases
- Doesn't account for future obligations like loan repayments or tax liabilities
- May appear negative during healthy growth phases when investment is high
- Requires accurate cash flow statements, which depend on consistent bookkeeping
Manage your cash flow with confidence using Xero
Tracking free cash flow starts with accurate, up-to-date financial records. Xero gives you real-time visibility into your cash position, with automated bank feeds and reports that update as transactions occur. Use cash flow forecasting to project your future cash position and spot potential shortfalls before they happen. Ready to take control of your finances? You can get one month free and see how Xero helps you stay on top of your cash flow.
FAQs on free cash flow
Here are answers to common questions about free cash flow and how it applies to your business.
What is a good free cash flow?
A "good" free cash flow depends on your industry and business stage. Generally, consistent positive FCF that covers your obligations and leaves room for growth is healthy. Comparing your FCF margin to similar businesses in your sector provides useful context.
Can a business have negative free cash flow?
Yes, and it's not always a problem. Businesses often have negative FCF when making large capital investments or during expansion phases. Concern arises when negative FCF persists without generating future returns or when it strains your ability to meet short-term obligations.
What is the difference between cash flow and free cash flow?
Cash flow refers to all cash movements in and out of your business, including operating, investing, and financing activities. Free cash flow specifically measures what's left from operating cash flow after you've paid for capital expenditures.
How often should you calculate free cash flow?
Calculate FCF monthly or quarterly to monitor trends and catch issues early. Annual calculations are useful for year-over-year comparisons, but more frequent reviews help you respond to changes before they become problems.
Is free cash flow the same as profit?
No. Profit is an accounting measure that includes non-cash items like depreciation and may recognise revenue before cash is received. Free cash flow measures actual cash generated after capital spending, which may be higher or lower than your reported profit.
Related terms
Learn more about free cash flow
Handy resources
Advisor directory
You can search for experts in our advisor directory
Cash flow statement template
Download our template to help you stay across cash flow for your business
Financial reporting
Keep track of your performance with accounting reports
Disclaimer
This glossary is for small business owners. The definitions are written with their requirements in mind. More detailed definitions can be found in accounting textbooks or from an accounting professional. Xero does not provide accounting, tax, business or legal advice.