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3.7

Cash flow

Unit 3 · Finance and accounts · SL and HL

More businesses fail from running out of cash than from making losses. This page explains why profit and cash are not the same, what working capital is, how to construct and use a cash flow forecast (a regular Paper 2 task), and the strategies for dealing with a cash flow problem.

🎯What you need to be able to do

  • Explain the difference between profit and cash flow.
  • Explain working capital, the working capital cycle and the liquidity position.
  • Construct and interpret cash flow forecasts.
  • Explain the relationship between investment, profit and cash flow.
  • Evaluate strategies for dealing with cash flow problems.

📚The business management

Profit is not cash

Profit is revenue minus costs over a period, recorded when sales are made. Cash flow is the actual movement of money into and out of the business. They differ because:

  • Credit sales: a sale counts as revenue now, but the cash arrives when the customer pays, perhaps 60 days later.
  • Credit purchases: costs are recorded when goods are received but paid later.
  • Capital expenditure: buying a machine uses a lot of cash now, but only the depreciation appears as a cost each year.
  • Stock: cash spent on stock not yet sold is not yet a cost in the profit and loss account.
  • Loans and share capital bring in cash but are not revenue; repaying loans uses cash but is not a cost.

So a profitable business can run out of cash (fast growth, generous credit to customers) and a loss-making one can have cash for a while (from a loan).

Working capital

\[ \text{working capital} = \text{current assets} - \text{current liabilities} \]

Working capital is the money available for day-to-day operations. The working capital cycle is the time between paying for inputs and receiving cash from customers:

A cycle: cash is used to buy raw materials or stock, which is produced and sold on credit, then debtors pay and cash returns. In the centre: working capital equals current assets minus current liabilities.
The longer the cycle, the more working capital a business needs.

The liquidity position is the business’s ability to meet short-term obligations; measured by the current and acid test ratios (3.5) and monitored with cash flow forecasts.

Cash flow forecasts

A cash flow forecast predicts cash inflows and outflows, usually month by month, to show when the business may be short of cash. The standard layout:

Opening balance
cash at the start of the month (= last month’s closing balance)
+ Total cash inflows
cash sales, receipts from debtors, loans, capital injections, asset sales
− Total cash outflows
stock, wages, rent, utilities, loan repayments, equipment, tax
= Net cash flow and closing balance
closing balance = opening balance + net cash flow

Uses: identifies periods of shortage in time to arrange an overdraft; supports loan applications; helps plan the timing of big purchases; a benchmark to monitor actual cash flow. Limitations: based on predictions of sales and costs that may be wrong; unexpected events (a customer failing to pay, a price rise); only as good as the assumptions.

Investment, profit and cash flow

Investment (buying assets, launching products) uses cash first; profit and cash inflows come later, if at all. So a period of heavy investment usually weakens cash flow even when it will raise future profit. Growing businesses need finance for this gap, and poor timing of investment is a common cause of cash crises.

Dealing with cash flow problems

Reduce cash outflows
negotiate longer credit with suppliers; cut or delay spending (non-essential purchases, marketing); lease instead of buy; reduce stock levels; find cheaper suppliers. Risks: supplier relations, lower quality or growth.
Increase cash inflows
chase debtors, give less credit, discounts for prompt payment, debt factoring; promotions to sell stock; sell unused assets or sale and leaseback. Risks: lost customers, lower margins.
Find additional finance
overdraft for short gaps; short-term loan; new owners’ capital. Risks: interest, dilution.

✏️Worked example

A surf school starts January with $15 000 in the bank. Its forecast cash inflows ($000) are 20, 18, 22, 30, 40 and 55 for January to June, rising into the busy season. Monthly outflows are $26 000, plus $30 000 in February for new boards. Calculate the closing balances and recommend how to manage the shortfall.
Jan: 15 + 20 − 26 = 9
Feb: 9 + 18 − 56 = −29
Mar: −29 + 22 − 26 = −33
Apr: −33 + 30 − 26 = −29
May: −29 + 40 − 26 = −15
Jun: −15 + 55 − 26 = 14
A bar chart of closing cash balances in thousands of dollars: January 9, February minus 29, March minus 33, April minus 29, May minus 15 and June 14. The largest shortfall is 33 thousand in March; an overdraft of about 35 thousand covers February to May.
The forecast shows a cash gap from February to May.

Recommendation: the shortage is temporary and caused by seasonality plus a one-off capital purchase. An overdraft facility of about $35 000 would cover the gap and is repaid by June. Better still, the boards (capital expenditure lasting several years) could be leased or bought with a medium-term loan, which removes most of the shortfall; the school could also delay the purchase to April or offer early-booking discounts to bring cash forward.

Check it. Each opening balance equals the previous closing balance; June’s closing balance equals the opening balance plus all inflows minus all outflows: 15 + 185 − 186 = 14.
Recommending a long-term loan for a short, seasonal gap (or an overdraft for a long-term asset). Match the finance to the cause and duration of the problem.

📝Practise

Work through these on paper, then reveal the answer.

1. [2 marks] Define the term working capital.
The money available for day-to-day operations, calculated as current assets minus current liabilities.
2. [2 marks] A shop’s opening balance is $4000; inflows $12 000; outflows $15 500. Calculate the closing balance.
4000 + 12 000 − 15 500 = −$500 (an overdraft is needed).
3. [4 marks] Explain why a profitable business might run out of cash.
Profit is recorded when sales are made, but if customers are given long credit, cash arrives later while suppliers, wages and rent must be paid now. Rapid growth makes this worse: more stock and debtors tie up cash (overtrading). Large capital purchases also use cash immediately although only depreciation reduces profit.
4. [4 marks] Explain two limitations of cash flow forecasts.
(1) They rely on predicted sales and costs, which may be wrong, especially for new businesses or in volatile markets. (2) Unexpected events (a major customer paying late, a supplier price rise, a machine breakdown) are not included, so the forecast can quickly become inaccurate unless updated.
5. [4 marks] Explain how debt factoring can improve cash flow, and one drawback.
The business sells its debtors to a factoring company, which pays most of their value immediately (for example 80–90%) and collects the debts itself, so cash comes in without waiting. Drawback: the factor charges a fee, so the business receives less than the full value, reducing profit; customers may also dislike dealing with a factor.
6. [10 marks] Discuss the strategies a small furniture manufacturer could use to deal with a cash flow problem caused by customers paying late.

Increase inflows: chase debtors, stop further credit to late payers, early-payment discounts, deposits on orders, factoring. Reduce outflows: negotiate supplier credit, cut stock of timber, delay non-essential spending. Finance: overdraft to bridge the gap.

Evaluation: tighter credit may lose customers who expect credit in the trade; discounts and factoring cut margins; supplier negotiation depends on relationships; an overdraft is quick but expensive. The root cause is credit control, so a policy of deposits and credit checks plus a short-term overdraft is a balanced solution.

🔗Go deeper — other people’s work

These are external resources, not mine. If one stops working, tell me and everything above it on this page still stands.

  • Small business guides from banks — free cash flow forecast templates.
  • AccountingCoach — the difference between profit and cash, and the cash flow statement.
  • Tutor2u — revision notes on cash flow forecasting.