Capital
Learn what capital is, the main types of capital, and how businesses use it to run and grow.
Published Thursday 23 July 2026
Table of contents
Key takeaways
- Capital is the money you use to build, run, or grow your business, and it can also mean your net worth or book value.
- The main types are working capital, equity capital, debt capital, and fixed capital.
- Capital comes from business earnings, borrowing, or investment, and it pays for expenses, assets, and growth.
- Capital is broader than cash, since it also includes assets your business owns.
What is capital?
Capital is the money you use to build, run, or grow your business. It can also refer to the net worth, or book value, of a business.
You most often use capital either to meet upcoming expenses or to invest in new assets and projects. Think of it as the money that goes into the business so you can get a profit back out.
Why capital matters
Capital keeps your business running day to day, so it's worth understanding how much you have and where it goes. Get this right and you can cover your bills and still put money toward growth.
Your business needs enough capital to meet all its upcoming expenses, which is known as working capital. Without enough of it, you could miss bill payments and even have to stop trading. Most owners like to hold more than enough, so the extra can go into improvements that help the business grow.
Types of capital
Capital comes in a few different forms, and each one plays a distinct role in how your business operates and grows. Here are the four types you'll come across most often.
Working capital
Working capital is the money available to cover your short-term needs. You calculate it as your current assets minus your current liabilities.
Equity capital
Equity capital is money raised from the business owners or shareholders. It represents an ownership stake and doesn't need to be repaid like a loan.
Debt capital
Debt capital is money you borrow and pay back over time, usually with interest. Common sources include bank loans, lines of credit, and business credit cards.
Fixed capital
Fixed capital is the money tied up in long-term physical assets. These are things like buildings, machinery, and equipment that your business uses for years rather than selling quickly.
Where capital comes from and how businesses use it
Capital can come from a few different places, and how you raise it shapes what it costs you. Once you have it, you put it to work across the business.
The most common sources are your own business earnings, debt from lenders, and equity from owners or investors. You can compare your options in this guide to financing your business.
Once capital is in the business, you use it to cover everyday expenses, buy assets like equipment, and fund growth such as new products or hiring. Balancing these uses helps you stay steady while still moving forward.
Capital vs money
Capital and money sound like the same thing, but capital is broader than the cash in your account. Knowing the difference helps you read your finances more clearly.
Money is one form of capital, yet capital also includes the assets your business owns. Capital assets are longer-term items like property, vehicles, and equipment that hold value and support your operations. You can see how these fit together on your balance sheet.
Manage your business capital with Xero
When you can see your capital clearly, it's easier to decide what to cover now and what to put toward growth. Cloud accounting software brings your numbers together so you always know where you stand.
Xero helps you track income, expenses, and assets in one place, so managing your capital feels less like guesswork. You can try it and get one month free.
FAQs on capital
Here are answers to some frequently asked questions about capital to help you put these ideas into practice.
What are the main types of capital?
The main types are working capital, equity capital, debt capital, and fixed capital. Each one covers a different need, from short-term expenses to long-term assets.
What is the difference between capital and money?
Money is the cash your business holds, while capital is the wider pool of resources you use to operate and grow. Capital includes cash plus assets like equipment and property.
What are the sources of capital?
Capital usually comes from your business earnings, borrowed funds, or investment from owners and shareholders. Many businesses use a mix of all three.
What are capital assets?
Capital assets are long-term items your business owns and uses over several years, such as buildings, machinery, and vehicles. They hold value and support your day-to-day operations.
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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.