📚 Cash Flow Forecasting and Working Capital | 现金流预测与营运资金
Cash flow is the lifeblood of any business. This article explains how to construct and interpret a cash flow forecast, why cash flow problems occur, and how working capital is managed to ensure a business remains solvent.
现金流是任何企业的命脉。本文将解释如何编制和解读现金流预测、现金流问题为何会发生，以及如何管理营运资金以确保企业保持偿付能力。
1. What is Cash Flow? | 什么是现金流？
Cash flow refers to the movement of money into and out of a business over a period of time. Cash inflows are receipts such as sales revenue, loans received, or money from investors. Cash outflows are payments such as wages, rent, raw materials, and loan repayments.
现金流是指资金在一段时间内流入和流出企业的运动。现金流入是收到的款项，如销售收入、获得的贷款或投资者的资金。现金流出是支付的款项，如工资、租金、原材料和贷款偿还。
Net cash flow is calculated as total inflows minus total outflows. A positive net cash flow means the business receives more cash than it pays out; a negative net cash flow means the opposite.
净现金流等于总流入减去总流出。净现金流量为正意味着企业收到的现金多于支付的现金；为负则意味着企业支付的现金多于收到的现金。
Net Cash Flow = Total Cash Inflows − Total Cash Outflows | 净现金流 = 现金流入总额 − 现金流出总额
The closing balance of a period is the opening balance plus the net cash flow. The opening balance of the next period is simply the closing balance of the current period.
某期期末余额等于期初余额加上净现金流。下一期的期初余额就是本期的期末余额。
2. The Cash Flow Forecast | 现金流预测
A cash flow forecast is an estimate of the cash inflows and outflows of a business over a future period. It is usually prepared on a monthly basis and helps managers anticipate cash shortages or surpluses before they occur.
现金流预测是企业对未来一段时间内现金流入和流出的估算。通常按月编制，帮助管理者在现金短缺或盈余发生之前做出预判。
Consider the simplified forecast for a small retail shop over three months:
以下是一个小型零售店三个月的简化预测：
| Item 项目 | January 一月 | February 二月 | March 三月 |
| Cash inflows 现金流入 | 12,000 | 10,000 | 14,000 |
| Cash outflows 现金流出 | 9,000 | 11,500 | 10,000 |
| Net cash flow 净现金流 | +3,000 | −1,500 | +4,000 |
| Opening balance 期初余额 | 2,000 | 5,000 | 3,500 |
| Closing balance 期末余额 | 5,000 | 3,500 | 7,500 |
Notice that even with a negative net cash flow in February, the business kept a positive closing balance because it had a sufficient opening balance. If the closing balance falls below zero, the business faces a bank overdraft or insolvency.
注意，即使二月份净现金流为负，企业仍然保持正的期末余额，因为它有足够的期初余额。如果期末余额降至零以下，企业就会面临银行透支或资不抵债。
3. Purposes of Cash Flow Forecasting | 现金流预测的用途
Managers use cash flow forecasts to identify potential cash shortages in advance, so they can arrange overdrafts, delay payments, or increase sales before a crisis occurs.
管理者利用现金流预测提前识别潜在的现金短缺，以便在危机发生之前安排透支、延期付款或增加销售。
Forecasts also support business planning and decision-making. For example, a business may use a forecast to decide whether it can afford to buy new equipment in a particular month, or to determine when it will need a loan.
预测还为业务规划和决策提供支持。例如，企业可以利用预测来决定在某个月份是否有能力购买新设备，或确定何时需要贷款。
Banks and investors often require a cash flow forecast before approving a loan. A realistic forecast demonstrates that the business understands its financial position and is likely to repay the debt.
银行和投资者在批准贷款之前通常要求提供现金流预测。现实的预测表明企业了解自身财务状况并且有可能偿还债务。
Comparing the forecast with actual results allows managers to evaluate performance. Variances between forecasted and actual cash flows reveal problems in sales, cost control, or credit collection that need attention.
将预测与实际结果进行比较可以让管理者评估业绩。预测现金流与实际现金流之间的差异揭示了销售、成本控制或信用收款方面需要注意的问题。
4. Constructing a Cash Flow Forecast | 编制现金流预测
To create a cash flow forecast, first estimate all cash inflows for each period. These include cash sales, payments from credit customers, sales of assets, loans, and capital introduced by owners.
要编制现金流预测，首先估算每个时期的全部现金流入。这些包括现金销售、信用客户的付款、资产出售、贷款和业主投入的资本。
Next, estimate all cash outflows. These include purchases of raw materials and stock, wages and salaries, rent and rates, insurance, advertising, fuel, maintenance, interest payments, and tax payments.
接下来，估算全部现金流出。这些包括原材料和存货的采购、工资薪金、租金和房产税、保险费、广告费、燃料费、维修费、利息支付和税款支付。
Be careful to distinguish between credit sales and cash received. A sale made on credit does not affect cash until the customer actually pays. Similarly, purchases on credit become cash outflows only when payment is made.
要小心区分赊销和实收现金。赊销在客户实际付款之前不影响现金。同样，赊购只在付款时才成为现金流出。
After calculating the net cash flow for each month, add the opening balance to obtain the closing balance. Carry the closing balance forward as the opening balance of the next month.
在计算出每个月的净现金流之后，将期初余额加上净现金流得出期末余额。再将期末余额结转为下一个月的期初余额。
Closing Balance = Opening Balance + Net Cash Flow | 期末余额 = 期初余额 + 净现金流
5. Interpreting a Cash Flow Forecast | 解读现金流预测
A persistent negative closing balance indicates a liquidity problem. The business may need a larger overdraft, a new loan, or an injection of capital from the owners.
持续为负的期末余额表明存在流动性问题。企业可能需要更大的透支额度、新贷款或来自业主的资本注入。
A large positive closing balance might seem good, but it could mean the business is holding too much idle cash. This cash could be invested in profitable projects, used to repay debt, or distributed to owners.
较大的正期末余额看似不错，但可能意味着企业持有太多闲置现金。这些现金可以投资于盈利项目、用于偿还债务或分配给所有者。
Seasonal patterns in sales, such as higher inflows during the winter holidays, can be seen clearly in a forecast. This helps managers plan stock levels and staffing requirements in advance.
销售中的季节性模式，例如寒假期间较高的现金流入，可以在预测中清晰地看到。这有助于管理者提前规划库存水平和人员配备需求。
When interpreting a forecast, look at the trend of closing balances over several months. A gradual decline may signal that the business is growing too fast without enough cash to support its expansion.
在解读预测时，要观察连续几个月期末余额的趋势。逐步下降可能预示着企业增长过快，但没有足够的现金来支持扩张。
6. Causes of Cash Flow Problems | 现金流问题的成因
Overtrading is a common cause of cash flow difficulties. A business expands quickly, but the increase in sales requires more stock, more staff, and more equipment before the additional revenue is actually received.
过度交易是现金流困难的常见原因。企业迅速扩张，但销售额的增加需要在额外收入实际到账之前投入更多的存货、员工和设备。
High fixed costs are another cause. Rent, insurance, and salaries must be paid regardless of sales levels. If sales fall, cash outflows remain the same while inflows decline, squeezing the closing balance.
高固定成本是另一个原因。无论销售水平如何，租金、保险和工资都必须支付。如果销售下降，现金流出保持不变而流入减少，从而挤压期末余额。
Seasonal demand leads to uneven monthly inflows, which can cause cash shortages in off-peak months. Businesses must build a cash buffer during high-demand periods to survive the slow months.
季节性需求导致月度流入不均衡，这可能在淡季造成现金短缺。企业必须在需求旺盛时期建立现金缓冲，以度过淡季月份。
Offering too much trade credit or being slow at collecting debts delays cash inflows. If customers pay after sixty days instead of the agreed thirty, the business may face a temporary cash shortage.
提供过多的商业信用或收账缓慢会延迟现金流入。如果客户在六十天后才付款，而不是约定的三十天，企业就可能面临暂时的现金短缺。
Large one-off purchases, such as new machinery or a vehicle, can create a sudden outflow of cash. Without prior planning, such purchases can push the closing balance dangerously low.
大额一次性采购，例如新机器或车辆，会产生突然的现金流出。如果没有事先计划，这类采购可能使期末余额降至危险的低水平。
7. Solutions to Cash Flow Problems | 现金流问题的解决方案
To address cash flow problems, a business can arrange an overdraft facility or a short-term loan. Overdrafts are flexible but carry high interest rates, so they should be used only for short gaps in cash.
为了解决现金流问题，企业可以安排透支额度或短期贷款。透支是灵活的，但利率较高，因此只应用于短期的现金缺口。
Improving credit control is a vital long-term solution. The business should check customer creditworthiness before offering credit, issue invoices promptly, chase late payers, and charge interest on overdue accounts.
改善信用控制是一个重要的长期解决方案。企业应在提供信用之前检查客户的信誉，及时开具发票，追讨逾期账款，并对逾期账户收取利息。
Businesses can also negotiate better terms with suppliers, such as longer payment periods or bulk purchase discounts. This reduces cash outflows in the short term and may lower overall costs.
企业还可以与供应商协商更好的条件，例如更长的付款期限或批量采购折扣。这在短期内减少现金流出，并可能降低总成本。
Reducing expenses, selling surplus assets, or leasing equipment instead of buying it outright can all improve cash flow. In difficult times, cutting unnecessary spending protects the closing balance.
削减开支、出售多余资产或租赁设备而不是直接购买，都可以改善现金流。在困难时期，削减不必要的支出可以保护期末余额。
8. Working Capital | 营运资金
Working capital is the money a business has available for day-to-day operations. It is calculated as current assets minus current liabilities.
营运资金是企业可用于日常经营的资金。其计算公式为流动资产减去流动负债。
Working Capital = Current Assets − Current Liabilities | 营运资金 = 流动资产 − 流动负债
Current assets include stock, debtors, and cash. Current liabilities include creditors, overdrafts, and short-term loans. Working capital shows whether the business can pay its short-term obligations using its short-term resources.
流动资产包括存货、应收账款和现金。流动负债包括应付账款、透支和短期贷款。营运资金显示企业能否用其短期资源偿还短期债务。
Positive working capital means the business can pay its bills on time. Negative working capital signals that current liabilities exceed current assets, which may lead to insolvency if not corrected quickly.
营运资金为正意味着企业能够按时支付账单。营运资金为负则表明流动负债超过流动资产，如果不迅速纠正，可能导致资不抵债。
9. Managing Working Capital | 营运资金管理
Effective working capital management balances liquidity and profitability. Holding too much stock or cash ties up money that could be used elsewhere, while holding too little risks insolvency.
有效的营运资金管理需要在流动性与盈利性之间取得平衡。持有过多的存货或现金会占用本可用于其他方面的资金，而持有过少则面临资不抵债的风险。
Inventory control is essential. A business should order stock just before it is needed, use the just-in-time method where possible, and avoid overstocking slow-selling items. Excess stock occupies warehouse space and reduces cash.
库存控制至关重要。企业应在需要之前订购存货，尽可能采用准时制方法，并避免过量储存滞销品。过多的存货占用仓库空间并减少现金。
Debtor management means setting clear credit terms, collecting debts promptly, and following up on overdue accounts. Reducing the average collection period increases the cash available for operations.
应收账款管理意味着设定明确的信用条款，及时收回应收账款，并跟催逾期账款。缩短平均收款期可以增加可用于经营的现金。
Creditor management involves negotiating favourable payment terms with suppliers while maintaining good relationships. Paying too early reduces cash unnecessarily; paying too late damages the relationship and may lead to supply disruption.
应付账款管理包括与供应商协商有利的付款条款，同时保持良好的关系。过早付款会不必要地减少现金；过晚付款会损害关系并可能导致供应中断。
The working capital cycle measures the time between paying suppliers for stock and receiving cash from customers. A shorter cycle usually means better liquidity. Businesses should aim to speed up stock turnover and credit collections while carefully delaying payments to suppliers.
营运资金周期衡量从向供应商支付存货款项到从客户处收到现金之间的时间。较短的周期通常意味着较好的流动性。企业应努力加快存货周转和信用收款，同时谨慎地推迟向供应商付款。
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