What this topic is about

• Sources of finance = where a business gets money from to start, survive, or grow.

• In exams, focus on: internal vs external finance, short-term vs long-term finance, and which source is most appropriate in a given situation.

• The IB syllabus for 3.2 Sources of finance covers three internal sources, eight external sources, and the appropriateness of short- or long-term finance.

Internal sources of finance

• Internal sources of finance = money raised from within the business.

• Personal funds (for sole traders) = the owner’s own savings or personal money invested into the business.

  • Advantage: quick access, no interest, no loss of control to outsiders.

  • Disadvantage: limited amount, high personal financial risk.

• Retained profit = profit kept in the business rather than distributed to owners/shareholders.

  • Advantage: cheap source of finance, no interest, no dilution of ownership.

  • Disadvantage: only available if the business is already profitable.

• Sale of assets = selling unused or unwanted assets to raise cash.

  • Advantage: immediate cash injection, no borrowing needed.

  • Disadvantage: one-off source only; may reduce future operating capacity if important assets are sold.

This visual helps show that businesses should match the length of finance to the length of need. It is especially useful for remembering why fixed assets tend to need long-term finance while working capital gaps are often covered by short-term finance. Source

External sources of finance

• External sources of finance = money raised from outside the business.

• Share capital = money raised by selling shares in the business.

  • Best for: larger businesses wanting long-term finance.

  • Advantage: no repayment of capital like a loan.

  • Disadvantage: possible loss of ownership/control and sharing future profits.

• Loan capital = borrowed money that is repaid over time with interest.

  • Best for: businesses needing a significant sum for expansion or asset purchase.

  • Advantage: ownership is retained.

  • Disadvantage: interest costs and fixed repayments increase risk.

• Overdrafts = bank agreement allowing a business to spend more than it currently has in its account.

  • Best for: short-term cash flow problems.

  • Advantage: flexible, convenient for temporary shortages.

  • Disadvantage: high interest, can be withdrawn by the bank.

• Trade credit = suppliers allow the business to buy now, pay later.

  • Best for: short-term working capital and inventory purchases.

  • Advantage: improves cash flow without immediate cash payment.

  • Disadvantage: late payment may damage supplier relationships; discounts may be lost.

• Crowdfunding = raising small amounts of money from many people, usually via an online platform.

  • Best for: start-ups, innovative products, businesses with strong public appeal.

  • Advantage: can also test market interest.

  • Disadvantage: success is uncertain; ideas are exposed publicly.

• Leasing = paying to use an asset without buying it outright.

  • Best for: expensive equipment, vehicles, technology.

  • Advantage: lower upfront cost; useful when cash is limited.

  • Disadvantage: can be more expensive over time; business does not own the asset during the lease.

• Microfinance providers = organizations offering small loans to entrepreneurs who may not access normal bank finance.

  • Best for: very small businesses and entrepreneurs in underserved markets.

  • Advantage: improves access to finance.

  • Disadvantage: loan size is limited; may still carry interest and repayment pressure.

• Business angels = wealthy private investors who provide finance, often to start-ups, usually in exchange for equity.

  • Best for: early-stage businesses with strong growth potential.

  • Advantage: finance plus business expertise/contacts.

  • Disadvantage: partial loss of ownership and influence over decisions.

Internal vs external finance

• Internal finance usually means less risk of outside control and often lower direct cost.

• Internal finance is often limited in amount.

• External finance can provide larger sums and support faster growth.

• External finance often brings interest, repayment obligations, or loss of ownership/control.

• Exam tip: do not just define both — explain why one is better than the other for that business and situation.

Short-term vs long-term finance

• Short-term finance = finance repayable or used within about one year.

• Best matched to: cash flow problems, seasonal stock build-up, working capital shortages.

• Common short-term sources in this topic: overdrafts and trade credit.

• Long-term finance = finance used over more than one year.

• Best matched to: expansion, buying fixed assets, major growth projects.

• Common long-term sources in this topic: share capital, loan capital, leasing, business angels.

• Golden rule: match the term of finance to the term of the need.

Choosing the most appropriate source in exams

• The key command term is often “appropriateness”.

• Always judge finance choice using the business context:

  • Amount needed — small or large?

  • Time period — short-term or long-term?

  • Purpose — cash flow support, start-up costs, expansion, asset purchase?

  • Cost — interest, fees, loss of dividends, loss of ownership?

  • Control — does the owner want to keep decision-making power?

  • Risk — can the business cope with repayments?

  • Stage of business — start-up, growing, established?

  • Access — can the business realistically obtain that finance?

• Strong exam answers compare at least two realistic options before making a justified judgment.

Fast evaluation framework

• Personal funds → good for small start-ups, but limited and risky for the owner.

• Retained profit → strong for established profitable firms, but unavailable to loss-making firms.

• Sale of assets → useful for urgent cash, but not sustainable long term.

• Share capital → strong for major expansion, but dilutes ownership.

• Loan capital → useful for long-term investment if the business can handle repayments.

• Overdrafts → best for temporary cash flow issues, not long-term projects.

• Trade credit → useful for day-to-day operations and stock purchases.

• Crowdfunding → best when the product/story attracts public support.

• Leasing → ideal when a business needs to use an asset without high upfront cost.

• Microfinance → useful for very small businesses excluded from traditional finance.

• Business angels → valuable when a start-up needs both capital and expertise.

Common exam judgments

• A start-up sole trader is often suited to personal funds, microfinance, crowdfunding, or a business angel depending on scale and growth potential.

• A business facing a temporary cash shortage is often better using an overdraft or trade credit than a long-term loan.

• A business buying expensive machinery may prefer loan capital or leasing because the need is long-term.

• A fast-growing company willing to share control may use share capital or business angels.

• A profitable established business may prefer retained profit because it avoids interest and outside interference.

This image shows microfinance in practice: very small-scale finance helping an entrepreneur operate or grow a business. It is useful for linking the term microfinance providers to real-world access-to-finance contexts. Source

Common mistakes to avoid

• Do not say all external finance is debt — share capital and business angels are usually forms of equity finance.

• Do not recommend overdrafts for major long-term expansion.

• Do not forget the drawback of each source.

• Do not confuse retained profit with cash sitting idle — it is profit kept in the business.

• Do not discuss a source without linking it to the business situation.

This image helps anchor share capital to the idea of raising money by selling shares in a public market. It reinforces that equity finance gives access to large amounts of capital but can reduce owner control. Source

20-second exam summary

• Internal finance = personal funds, retained profit, sale of assets.

• External finance = share capital, loan capital, overdrafts, trade credit, crowdfunding, leasing, microfinance providers, business angels.

• Short-term finance fits working capital/cash flow needs.

• Long-term finance fits expansion/fixed asset needs.

• Best exam answers make a context-based judgment about appropriateness, not just a list of definitions.