External Sources of Finance Revision Notes | GCSE AQA Business

1. Why External Finance Matters

Picture this: Aisha wants to open a bakery. She has £2,000 in savings, but the equipment alone costs £15,000. Where does the rest come from? This is the central problem that finance solves. Internal finance can come from retained profit or by selling unwanted assets, while external finance brings in money from outside the business when internal funds are not enough.

External finance means raising money from sources outside the business. This is different from internal finance, which includes retained profit and selling assets. These internal options are crucial for funding and will be explored in a companion lesson. When internal funds run dry — or do not exist yet — businesses turn outward.

The source a business chooses matters enormously. The wrong choice can saddle a start-up with crippling interest payments or force an owner to give up control of their company. Getting this decision right is a core skill the AQA examiner will test you on.

2. The Main External Sources of Finance

There are several external sources of finance, and each one works differently. The key is understanding not just what each source is, but when it is appropriate and what the trade-offs are. Work through each one carefully — examiners frequently ask you to recommend a source for a specific business scenario.

Businesses should compare internal and external finance before borrowing. Retained profit and selling unwanted assets avoid interest and loss of control, but they are limited by how much profit has been kept and what assets the business can spare.

Notice the pattern so far: loans and mortgages suit large, planned expenditure, while overdrafts suit short-term cash flow gaps. This distinction is one examiners test repeatedly. A business choosing an overdraft to fund a new factory would be making a serious strategic error.

Notice how suitability depends on the business need: overdrafts help with short-term cash flow, while loans, mortgages or share issues are usually chosen for larger or longer-term funding.

You now have a full picture of the main external sources. Before moving on, notice that some sources create debt (loans, overdrafts, mortgages, hire purchase) while others involve giving up ownership (share issues, family investment). This debt-versus-ownership trade-off is a classic evaluation point in higher-mark questions. Note that trade credit is a creditor on the balance sheet (a liability the business owes to suppliers) rather than debt finance or equity, and government grants create neither debt nor a transfer of ownership.

3. Comparing Sources: Advantages and Disadvantages

Knowing what each source is gets you to Level 1 in an exam. To reach the higher marks, you need to weigh up the advantages and disadvantages in context. The same source that is perfect for one business can be disastrous for another.

The chart above is a revision tool, but do not memorise it as a list. In the exam, you will be given a specific business scenario and asked to recommend or evaluate a source. Your job is to connect the features of the source to the specific circumstances of that business.

For example, a sole trader with no assets cannot offer collateral for a bank loan. A brand-new business has no retained profit and no trading history to reassure a bank. These constraints push new businesses towards family and friends, government grants, or hire purchase — sources that do not require a proven track record.

4. Calculating the Cost of Borrowing

Here is where the numbers come in — and where many students drop marks by skipping the working. When a business borrows money, the total amount repaid is always greater than the amount borrowed. The difference is the interest, and calculating it correctly is a core exam skill.

The formula above tells you the total repayment, but examiners often ask for the total interest paid — which is the total repayment minus the original principal. Make sure you read the question carefully to give the right figure. In exam questions at GCSE, you will only be asked to calculate simple interest using the formula provided above.

Worked example: Calculating the Total Cost of a Bank Loan

Chloe borrows £20,000 from a bank to buy new kitchen equipment for her restaurant. The loan is at a simple interest rate of 5% per annum over 4 years. Calculate (a) the total interest paid and (b) the total amount repaid.

1. Principal = £20,000 | Interest Rate = 5% = 0.05 | Time = 4 years — Identify all the values before substituting. Converting the percentage to a decimal (5 ÷ 100 = 0.05) avoids errors in the next step.
2. Interest = £20,000 × 0.05 × 4 = £20,000 × 0.20 = £4,000 — Work left to right: 0.05 × 4 = 0.20, then £20,000 × 0.20 = £4,000. This is the extra cost of borrowing.
3. Total Repayment = £20,000 + £4,000 = £24,000 — Add the interest to the original principal. The business repays £24,000 in total, even though it only received £20,000.
4. The loan costs Chloe an additional £4,000 above the amount borrowed, spread over 4 years — approximately £1,000 per year in interest. — Always interpret the number in context. This extra cost must be covered by the revenue the new equipment generates, otherwise the investment is not worthwhile.

Answer: (a) Total interest paid = £4,000. (b) Total amount repaid = £24,000. The loan increases Chloe's total expenditure on the equipment by £4,000 compared to paying cash upfront.

5. New Businesses vs Established Businesses

One of the most common evaluation questions on this topic asks you to assess the suitability of a source of finance for either a new or an established business. These two types of business face very different circumstances, and the same source can be appropriate for one but completely unsuitable for the other.

New businesses face a fundamental problem: they have no track record. Banks are reluctant to lend to businesses that have not yet proven they can generate revenue. This means new businesses are often limited to personal savings, family and friends, government grants, or hire purchase — sources that require less stringent credit history requirements.

Established businesses have more options. They have trading history, assets, and often retained profit. This makes them more attractive to banks, meaning loans and mortgages become accessible. They may also have supplier relationships that allow trade credit, and if they are limited companies, they can issue new shares to raise large sums.

Worked example: Evaluating the Suitability of Finance for a Given Business

Ben is launching a new street food business. He needs £12,000 to buy a catering van. He has no assets and no trading history. Evaluate whether a bank loan or hire purchase is more suitable for Ben. [6 marks]

1. Ben is a new business owner with no assets and no trading history. — Always extract the specific details from the scenario before applying theory. This earns application marks.
2. A bank loan would provide the full £12,000 upfront. However, banks typically require collateral and a proven track record. Ben has neither, so the bank is likely to refuse the application or charge a very high interest rate to compensate for the risk. — Developed point: identify the source, explain how it works, then link to Ben's specific situation.
3. Hire purchase allows Ben to acquire the van immediately by paying a deposit and monthly instalments. The van itself acts as security for the finance company, so Ben's lack of other assets is less of a barrier. He can use the van to generate revenue while paying it off. — Counter the bank loan analysis with a developed argument for hire purchase, again linked to Ben's circumstances.
4. Hire purchase is more suitable for Ben because it does not require collateral beyond the asset itself, making it accessible to a new business with no trading history. Although it costs more overall due to interest, it allows Ben to start trading immediately and generate the revenue needed to cover the repayments. — A clear, justified conclusion that weighs up both options and reaches a decision. This is what separates Level 2 from Level 3 responses.

Answer: Hire purchase is more suitable for Ben. As a new business with no assets or trading history, he is unlikely to secure a bank loan. Hire purchase uses the van as security, making it accessible, and allows him to generate revenue immediately to cover the instalments — despite the higher overall cost.

A strong answer here compares why one source is more accessible, cheaper or less risky than another, rather than only naming the source.

6. Exam Technique and Common Mistakes

This topic appears in every AQA GCSE Business paper in some form. The questions range from 2-mark definitions to 9-mark evaluations. The difference between a Grade 4 and a Grade 7 response on this topic is almost always the same thing: application to the specific business in the question.

A Grade 4 response says: "A bank loan is a good source of finance because it provides a large sum of money." A Grade 7 response says: "A bank loan would provide Mohammed's logistics business with the £50,000 needed to purchase the delivery fleet in one lump sum, with fixed monthly repayments that allow him to budget accurately. However, as an established business with existing assets, Mohammed is well-placed to meet the bank's collateral requirements, making this a realistic option." The second response earns marks because it connects theory to the specific scenario.

For evaluate questions, always present both sides before reaching a conclusion. Use phrases such as "on one hand... however... on balance" to signal to the examiner that you are weighing up evidence rather than listing points. A conclusion without reasoning scores no additional marks — always explain why you have reached your judgement.