What is Capital Structure?

Understanding capital structure

Every business requires funding to operate and grow. Capital structure refers to the balance between money provided by shareholders, such as share capital and retained profits, and funds borrowed from lenders through loans, bonds or other financing arrangements.

The right capital structure varies depending on factors such as the size of the business, its industry, cash flow, growth objectives and appetite for financial risk. A business that relies heavily on borrowing may benefit from lower financing costs in some circumstances, but it may also face higher repayment obligations and increased exposure to changes in interest rates. Conversely, raising equity can strengthen the balance sheet and reduce debt, although it may dilute existing shareholders’ ownership.

Businesses often review their capital structure when raising finance, refinancing existing borrowing, undertaking acquisitions or planning significant expansion. Finding an appropriate balance between debt and equity is a key consideration in corporate finance, funding strategy and long-term financial planning.

Key features of capital structure

• It represents the balance between debt and equity financing.
• The mix of funding influences financial risk and business flexibility.
• Capital structure affects the cost of raising and servicing finance.
• Businesses may adjust their capital structure as their funding needs change.
• The most appropriate structure depends on the company’s commercial objectives and financial circumstances.

How capital structure works

1. A business identifies the funding required to support its operations or investment plans.
2. Finance is raised through a combination of equity, borrowing or retained earnings.
3. The balance between debt and equity is monitored as the business develops.
4. The capital structure may be reviewed and adjusted in response to changing commercial or financial objectives.

Capital structure in practice

A growing manufacturing company plans to open a new production facility. Rather than relying entirely on bank borrowing, it raises additional equity from existing shareholders alongside a commercial loan. The combination of debt and equity provides the funding required while maintaining an appropriate level of financial flexibility.

Related terms

• Debt finance
• Equity finance
• Leverage
• Recapitalisation
• Refinancing
• Share capital
• Business valuation
• Corporate finance

Common misconceptions

• A higher level of borrowing does not always result in a stronger capital structure.
• Capital structure is not fixed and may change throughout the life of a business.
• Equity financing does not create repayment obligations in the same way as debt.

Frequently asked questions about capital structure

What is capital structure?

Capital structure is the combination of debt and equity that a business uses to finance its activities and support long-term growth.

Why is capital structure important?

It influences a company’s financing costs, financial risk, borrowing capacity and ability to fund future investment.

What is the difference between debt and equity?

Debt involves borrowing money that is generally repaid with interest. Equity represents ownership in a business and is typically provided by shareholders in return for a share of future value.

Can a company change its capital structure?

Yes. Businesses may alter their capital structure by raising new equity, refinancing borrowing, repaying debt or undertaking a recapitalisation.

How does capital structure affect business growth?

An appropriate balance between debt and equity can provide access to funding while supporting financial resilience and long-term strategic objectives.