Cash and Cash-Flow Forecasting
Why Cash Matters
Cash is the lifeblood of any business. Without it, a business cannot pay its suppliers, meet payroll or cover everyday overheads like rent and utilities. Even a profitable business can collapse if it runs out of cash — a situation that happens more often than most people realise. The formal term for a business that cannot pay its debts as they fall due is insolvency.
Cash matters for three core reasons: to pay suppliers on time and maintain good relationships; to pay employees their wages; and to pay fixed overheads such as rent, insurance and utility bills. Missing any of these payments can trigger legal action or the loss of key business relationships.
Cash is NOT the same as profit. A business records a sale as revenue when it happens — but the cash may not arrive for weeks or months if the customer is on credit terms. Meanwhile, the business still has to pay its own suppliers and staff. This timing gap is why profitable businesses go bust.
Cash vs Profit — A Critical Distinction
Imagine a small marketing agency that wins a £20,000 contract in January. The work is completed in February and invoiced immediately. The client pays in May. The agency has earned a profit on the contract — but for January, February, March and April it has zero cash from that job. During those months it still needs to pay office rent, staff wages and software subscriptions. If its bank account cannot cover those outgoings, it faces a cash crisis despite being profitable.
A second common cause of a cash-profit gap is stock investment. A retailer who buys £30,000 of stock in August to prepare for Christmas has spent real cash but has not yet earned any revenue from it. Until the goods are sold, the cash is tied up in stock and unavailable for other needs.
Cash inflows are all money coming into the business in a given period. Examples include cash sales, receipts from credit customers, bank loans received, and any additional capital injected by the owner.
Cash outflows are all money leaving the business in the same period. Examples include payments to suppliers, staff wages, rent, utility bills, tax payments and loan repayments.
Net cash flow is the difference between inflows and outflows in a period:
Net cash flow = Cash inflows − Cash outflows
A positive net cash flow means more cash came in than went out that period. A negative net cash flow means outgoings exceeded inflows.
The opening balance is the cash a business has at the start of a period. It is always equal to the closing balance of the previous period. The closing balance is the cash held at the end of a period:
Closing balance = Opening balance + Net cash flow
Reading a Cash-Flow Forecast
A cash-flow forecast is a month-by-month table showing predicted inflows, outflows, net cash flow, and opening and closing balances. Lenders and investors use it to assess whether a business can service its debts. The business owner uses it to spot potential cash shortfalls before they happen, and to arrange finance (such as an overdraft) in advance.
Net cash flow = Inflows − Outflows
Opening balance of month 2 = Closing balance of month 1
Closing balance = Opening balance + Net cash flow
These three relationships govern every cash-flow forecast table.
Worked Calculation — Cash-Flow Forecast
Willow Yard Florists has the following predicted figures for March and April:
March: Inflows = £8,400; Outflows = £9,100; Opening balance = £1,200
Net cash flow = £8,400 − £9,100 = −£700
Closing balance = £1,200 + (−£700) = £500
April: Inflows = £11,200; Outflows = £8,600; Opening balance = £500 (last month’s closing balance)
Net cash flow = £11,200 − £8,600 = £2,600
Closing balance = £500 + £2,600 = £3,100
In March the florist has a negative net cash flow, meaning it spent more cash than it received. This does not mean the business is unprofitable — it may have been buying stock ahead of a busy spring period. The positive opening balance prevented a crisis. By April, the forecast returns to a healthy closing balance of £3,100.
This is the single most common misconception in GCSE Business. Many students believe that if a business is making a profit, it will always survive. This ignores the timing difference between earning profit and receiving cash.
A business can show a healthy profit in its accounts for the year and still run out of cash midway through, if large customers are slow payers and suppliers demand payment immediately. In that case, the business may have to seek emergency finance or even cease trading — despite being technically profitable. Cash flow and profit are measured differently and must be managed separately.
Improving Cash Flow
Businesses facing cash-flow problems have several options. They can chase late-paying customers more aggressively, or offer discounts for early payment. They can negotiate longer payment terms with their own suppliers, delaying outflows. They can arrange an overdraft facility with the bank for short-term shortfalls, or take out a short-term loan. Some businesses sell assets they no longer need to raise an immediate cash injection. Understanding which option is most suitable depends on whether the problem is short-term (a timing mismatch) or structural (the business is genuinely unprofitable).