Fixed capital refers to money tied up in long-term assets like property and equipment, while working capital funds the short-term needs of daily operations. Fixed capital buys the things a business holds onto and uses to run, such as land, buildings, and machinery. Working capital, on the other hand, handles recurring expenses like payroll, rent, and inventory. Both forms of capital are crucial: fixed capital gets a business started, and working capital keeps it going day to day.
Fixed Capital vs Working Capital at a Glance
| Attribute | Fixed Capital | Working Capital |
|---|---|---|
| Purpose | Acquires long-term, permanent assets | Funds day-to-day operations |
| Time horizon | Long-term, spanning years | Short-term, within one year |
| Examples | Land, buildings, machinery, equipment, patents | Cash, inventory, accounts receivable |
| Balance-sheet home | Non-current (fixed) assets | Current assets minus current liabilities |
| Liquidity | Illiquid; hard to convert to cash quickly | Liquid; readily converted to cash |
| Typical funding | Equity, term loans, long-term financing | Retained earnings, lines of credit, invoice financing |
| How to measure it | No single formula | Current assets minus current liabilities |
What Is Fixed Capital?
Fixed capital is the money a business invests in the long-term assets needed to launch and sustain operations. It’s spread across permanent assets essential to the business, including land, buildings, machinery, and equipment. These are considered fixed capital because they can’t be easily pulled from the business and generally don’t change form. Non-current intangible assets like patents, copyrights, and long-term receivables also count as fixed capital.
The amount of fixed capital a business requires varies based on its size and industry: a manufacturer with a factory and heavy machinery ties up far more than a consultancy with a laptop and a lease. Regardless of the amount, fixed capital allows a business to start operating from day one and expand over time.
What Is Working Capital?
Working capital is the difference between your current assets and current liabilities on the balance sheet. Current assets include things like cash on hand, accounts receivable, and short-term investments that quickly convert to cash. Current liabilities are debts due within a year, such as bills payable, short-term loans, and dividends payable.
If current assets exceed current liabilities, the business enjoys positive working capital and can meet its short-term obligations. If liabilities surpass assets, the business faces a working-capital deficit, prompting many owners to seek outside funding. In simple terms, working capital is the money readily available to keep the lights on and pay due bills.
Why the Difference Matters
Understanding the type of capital you’re dealing with influences how you fund it. Fixed capital involves long-term investments, so it’s best paired with long-term financing: equity, a term loan, or a mortgage on the property itself. Using short-term money for permanent assets means you’ll refinance on someone else’s timeline.
Working capital is different. It’s short-term and varies by nature, making it ideal for flexible, short-term funding. This is where most borrowing demand exists. Lines of credit were the top financing choice in the 2025 Federal Reserve Small Business Credit Survey, sought by 52% of applicants, with 56% of firms seeking financing for operating expenses. Matching the funding term to the asset’s life is a critical business finance decision.
How to Cover a Working Capital Shortfall
When current liabilities exceed current assets, businesses face a few straightforward options to bridge the gap. Each comes with tradeoffs worth considering before committing.
- Business line of credit. It’s flexible and revolving: you draw only what you need and pay interest on the drawn balance. However, there are tradeoffs. Draw fees often range from 1% to 3% per draw, variable rates track the prime rate (6.75% as of July 2026) plus a margin, and a personal guarantee is standard, even on an unsecured line.
- Invoice financing. If slow-paying customers cause the shortfall, financing your receivables turns unpaid invoices into cash now, but you give up a percentage of the invoice value as the cost.
- Retained earnings. The cheapest source is your own accumulated profit, when available, but relying on it can starve growth if you drain the buffer.
The best choice depends on why the gap exists and its duration. A short, recurring gap suits a line of credit; a receivables gap aligns with invoice financing; a structural gap may indicate a deeper pricing or cost issue that needs addressing first.
Choosing the Right Working Capital Plan
Sound money management involves matching funding to the need and ensuring enough working capital is available to meet obligations as they arise. REIL Capital assists business owners in finding a working-capital plan that fits their needs, whether it’s a business line of credit with a draw-only-what-you-need structure or one of seven financing products ranging from $5,000 to $10,000,000. For a practical look at how working capital is utilized, check out our guide on the four main ways businesses use working capital.
Frequently Asked Questions
What is the difference between fixed capital and working capital?
Fixed capital is money invested in long-term, permanent assets such as land, buildings, and machinery, while working capital is the short-term money that funds day-to-day operations like payroll and inventory. Fixed capital gets a business running; working capital keeps it running.
What is working capital?
Working capital is the difference between a company’s current assets and its current liabilities, the money readily available to meet short-term obligations. Positive working capital means current assets exceed current liabilities; negative working capital signals a shortfall that many businesses cover with outside financing.
What is fixed capital?
Fixed capital is the money a business invests in long-term assets it keeps and uses to operate: land, buildings, machinery, equipment, and intangibles like patents. These assets cannot be converted to cash quickly, which is what separates them from working capital.
How do you calculate working capital?
Working capital equals current assets minus current liabilities. Current assets include cash, inventory, and accounts receivable; current liabilities include short-term debts, bills payable, and dividends due within a year. A positive result means the business can cover its near-term obligations.
Can a business line of credit provide working capital?
Yes. A business line of credit is one of the most common ways to cover a working-capital gap: you draw only what you need for payroll, inventory, or other short-term costs and pay interest only on the amount drawn. Lines of credit were the most-sought financing product in the 2025 Federal Reserve Small Business Credit Survey, sought by 52% of applicants.
