📚 Core Knowledge Summary for Cambridge IGCSE Accounting | 剑桥 IGCSE 会计核心知识点梳理
This comprehensive guide walks you through the essential topics of the Cambridge IGCSE Accounting syllabus, from the fundamental accounting equation to the analysis and interpretation of financial statements. Whether you are revising for your final exam or building a solid foundation, each section pairs clear English explanations with Chinese translations to support bilingual learning and deep understanding.
这本综合性指南带你梳理剑桥 IGCSE 会计课程的核心主题，从基础会计等式到财务报表的分析与解释。无论你是在为最终考试复习，还是打下坚实基础，每个小节都以清晰的英文解释搭配中文翻译，支持双语学习并加深理解。
1. The Accounting Equation and Double-Entry | 会计等式与复式记账
The accounting equation is the foundation of all bookkeeping: Assets = Liabilities + Owner’s Equity. Every business transaction affects at least two items in this equation, ensuring it always balances. The double-entry system records each transaction as a debit in one account and a credit in another, maintaining the equality of the accounting equation.
会计等式是所有簿记的基础：资产 = 负债 + 所有者权益。每一笔企业交易至少会影响该等式中的两个项目，确保等式始终平衡。复式记账系统将每笔交易记录为一个账户的借方和另一个账户的贷方，从而维持会计等式的平衡。
For example, purchasing inventory for cash increases the asset ‘Inventory’ (debit) and decreases the asset ‘Cash’ (credit). The total assets remain unchanged, and the equation stays in balance. Understanding which accounts to debit or credit is crucial: assets and expenses increase with debits, while liabilities, capital, and income increase with credits.
例如，用现金购买存货会增加资产“存货”（借方）并减少资产“现金”（贷方）。总资产保持不变，等式依然平衡。理解哪些账户应借记或贷记至关重要：资产和费用在借记时增加，而负债、资本和收益在贷记时增加。
- Debit (Dr): increases assets, expenses, and drawings / 借记 (Dr)：增加资产、费用和提款
- Credit (Cr): increases liabilities, capital, and income / 贷记 (Cr)：增加负债、资本和收益
2. Source Documents and Books of Prime Entry | 原始凭证与日记账
Source documents provide evidence of business transactions and are used to enter information into the books of prime entry. Common source documents include invoices, credit notes, debit notes, receipts, and bank paying-in slips. The books of prime entry are the first place transactions are recorded chronologically before posting to the ledger.
原始凭证为业务交易提供证据，并用于将信息录入日记账。常见的原始凭证包括发票、贷项通知单、借项通知单、收据和银行缴款单。日记账是在过账到分类账之前，按时间顺序记录交易的最初场所。
The main books of prime entry and their uses are:
- Sales Journal: records credit sales of goods. / 销售日记账：记录商品的赊销。
- Purchases Journal: records credit purchases of goods. / 采购日记账：记录商品的赊购。
- Returns Inwards Journal: records goods returned by credit customers. / 销售退回日记账：记录赊销客户退回的商品。
- Returns Outwards Journal: records goods returned to credit suppliers. / 采购退回日记账：记录退还给赊购供应商的商品。
- Cash Book: records all cash and bank transactions. / 现金簿：记录所有现金和银行交易。
- General Journal: records non-regular transactions such as correction of errors, opening entries, and purchase or sale of non-current assets. / 普通日记账：记录非经常性交易，如更正错误、期初分录以及购买或出售非流动资产。
3. Ledger Accounts and the Trial Balance | 分类账与试算平衡表
Ledger accounts are T-accounts where all transactions relating to a specific asset, liability, capital, income, or expense are collected. At the end of an accounting period, each ledger account is balanced off, and the closing balance is brought down to the next period. The trial balance is a list of all ledger account balances extracted at a particular date, with debit balances in one column and credit balances in another.
分类账是 T 形账户，用于汇总与特定资产、负债、资本、收益或费用相关的所有交易。在会计期末，每个分类账账户进行结账，将期末余额转入下期。试算平衡表是在特定日期提取的所有分类账账户余额的列表，借方余额列为一栏，贷方余额列为另一栏。
A trial balance checks the arithmetical accuracy of the double-entry system. If total debits equal total credits, the books are said to be balanced. However, a balanced trial balance does not guarantee that there are no errors; it only confirms that the sum of debits equals the sum of credits. Errors that do not affect the trial balance include omission, commission, principle, compensating errors, and original entry errors.
试算平衡表检查复式记账系统的算术准确性。若借方总额等于贷方总额，则账簿被认为是平衡的。但试算平衡表平衡并不能保证没有错误，它只能确认借方总和等于贷方总和。不影响试算平衡表的错误包括遗漏错误、账户记错错误、原则性错误、抵消错误和原始分录错误。
4. Adjustments: Depreciation and Bad Debts | 调整：折旧与坏账
Adjustments are made to ensure that expenses are matched with the revenue of the correct period. Depreciation is the allocation of the cost of a non-current asset over its useful life. It spreads the expense to match the benefits the asset provides. The two main methods are straight-line and reducing balance.
进行调整是为了确保费用与正确期间的收入相配比。折旧是将非流动资产成本在其使用寿命内分摊。它分摊费用以配比资产提供的效益。两种主要方法是直线法和余额递减法。
Straight-line depreciation = (Cost − Residual value) ÷ Useful life
直线法折旧 = (成本 − 残值) ÷ 使用年限
Bad debts arise when a credit customer is unable to pay the amount owed. When a debt is written off as irrecoverable, an expense (Bad Debts) is debited and the trade receivable is credited. A provision for doubtful debts is created for debts that may not be collected, recognising a potential loss before it becomes certain.
坏账发生在赊销客户无法支付所欠金额时。当一项债务被确认为无法收回而冲销时，费用（坏账）借方增加，应收账款贷方减少。对于可能无法收回的债务，需计提呆账准备金，在潜在损失确定前便加以确认。
5. Accruals and Prepayments | 应计与预付
The accruals (matching) concept requires that expenses and income are recorded in the period to which they relate, not when cash is received or paid. An accrual is an expense incurred but not yet paid, or income earned but not yet received. A prepayment is an expense paid in advance for the next period, or income received in advance.
应计（配比）概念要求费用和收入应记录在它们所属的期间，而不是现金收付的期间。应计费用是指已发生但尚未支付的费用，或已赚取但尚未收到的收入。预付费用是指为下期提前支付的费用，或提前收到的收入。
Adjusting entries for accruals: debit the relevant expense account, credit ‘Accruals’ (liability). For prepaid expenses: debit ‘Prepayments’ (asset), credit the expense account. These adjustments ensure the income statement shows the true expense for the period and the statement of financial position reports correct assets and liabilities.
应计的调整分录：借记相关费用账户，贷记“应计费用”（负债）。对于预付费用：借记“预付账款”（资产），贷记费用账户。这些调整确保利润表显示当期真实费用，财务状况表报告正确的资产与负债。
6. Preparation of Financial Statements | 财务报表的编制
Financial statements are prepared for sole traders at the end of the accounting period. The income statement (trading and profit and loss account) calculates the gross profit and net profit. The statement of financial position (balance sheet) shows the business’s assets, liabilities, and capital at a specific date.
个体工商户在会计期末编制财务报表。利润表（营业及损益账户）计算毛利和净利润。财务状况表（资产负债表）显示企业在特定日期的资产、负债和资本。
Income Statement structure: Sales − Cost of sales = Gross profit. Cost of sales = Opening inventory + Purchases − Purchases returns + Carriage inwards − Closing inventory. Then subtract expenses (including depreciation, bad debts, etc.) to arrive at net profit. Statement of Financial Position: Non-current assets + Current assets − Current liabilities − Non-current liabilities = Net assets, which should equal Capital (Opening capital + Additional capital + Net profit − Drawings).
利润表结构：销售收入 − 销售成本 = 毛利。销售成本 = 期初存货 + 购货 − 购货退回 + 购货运费 − 期末存货。再减去费用（包括折旧、坏账等）得出净利润。财务状况表：非流动资产 + 流动资产 − 流动负债 − 非流动负债 = 净资产，应等于资本（期初资本 + 追加资本 + 净利润 − 提款）。
7. Partnership Accounts | 合伙企业会计
Partnership accounts introduce the sharing of profits and the concept of partners’ capital and current accounts. A partnership agreement may specify interest on capital, partners’ salaries, and profit-sharing ratios. The appropriation account shows how the net profit is divided among partners.
合伙企业会计引入了利润分配以及合伙人资本账户和往来账户的概念。合伙协议可能会规定资本利息、合伙人薪金以及损益分配比例。利润分配账户显示净利润如何在合伙人之间划分。
Each partner has a capital account (fixed unless new capital introduced) and a current account to record share of profit, interest on drawings, partners’ salary, interest on capital, and drawings. The current account can have a debit or credit balance, representing owing to or due from the partner. The statement of financial position shows partners’ capital and current account balances separately.
每个合伙人都有一个资本账户（通常不变，除非引入新资本）和一个往来账户，用以记录利润份额、提款利息、合伙人薪金、资本利息和提款。往来账户可能有借方或贷方余额，表示合伙人对企业的欠款或企业应付合伙人的款项。财务状况表将合伙人的资本账户与往来账户余额分别列示。
8. Limited Company Accounts | 有限公司会计
Limited companies are separate legal entities from their owners (shareholders). Their financial statements include a statement of changes in equity. Share capital consists of issued shares; a company may have ordinary shares and preference shares. Debentures are long-term loans and appear as non-current liabilities.
有限公司是独立于其所有者（股东）的法律实体。其财务报表包括权益变动表。股本由已发行股票构成；公司可能拥有普通股和优先股。公司债券是长期借款，列作非流动负债。
Companies set aside part of their profit as reserves (revenue reserves and capital reserves). Dividends are distributions of profit to shareholders. The appropriation of profit in a company includes transfers to reserves and dividends paid or proposed. The income statement presents profit from operations, finance costs, and tax expense to give profit for the year.
公司将部分利润提取为准备金（收益准备金和资本准备金）。股利是向股东分配的利润。公司利润的分配包括转入准备金和已付或拟派股利。利润表列示经营利润、财务费用和税收费用，得出本年度利润。
9. Control Accounts and Bank Reconciliation | 控制账户与银行对账
Control accounts summarise large numbers of individual ledger accounts. A sales ledger control account contains totals from the sales ledger (trade receivables), while a purchases ledger control account summarises trade payables. They help localise errors and are used for internal checks.
控制账户汇总了大量个别分类账账户。销售分类账控制账户包含来自销售分类账的总额（应收账款），而采购分类账控制账户汇总应付账款。它们有助于定位错误并用于内部核对。
A bank reconciliation statement compares the cash book balance with the bank statement balance, identifying differences caused by timing (e.g., unpresented cheques, outstanding deposits) or errors. The adjusted cash book balance is then used to prepare the statement. The reconciliation proves the accuracy of both records.
银行对账调节表将现金簿余额与银行对账单余额进行比较，识别出由于时间差异（如未兑现支票、在途存款）或错误造成的差异。调整后的现金簿余额随后用于编制调节表。调节表证明了双方记录的准确性。
10. Incomplete Records | 不完整记录
Incomplete records occur when a business does not maintain a full double-entry system. To prepare final accounts, missing figures must be calculated using control accounts, mark-up/margin analysis, and the accounting equation. Opening and closing capital are used to find profit or loss for the year.
当企业未维持完整的复式记账系统时，就会出现不完整记录。要编制最终账目，必须利用控制账户、加成/毛利率分析及会计等式来计算缺失的数字。期初和期末资本可用于求出本年利润或亏损。
The statement of affairs lists assets and liabilities to determine capital at a point in time. Profit is calculated as: Closing capital − Opening capital + Drawings − Capital introduced. Missing sales or purchases can be derived from total trade receivables or payables accounts reconstructed by using receipts and payments.
财务状况陈述表列出资产和负债，以确定某一时点的资本。利润计算公式为：期末资本 − 期初资本 + 提款 − 投入资本。遗漏的销售额或购货额可通过利用收付款项重建的总应收账款或应付账款账户推导出来。
11. Accounting Principles and Policies | 会计原则与政策
Accounting concepts and conventions provide a framework for preparing financial statements consistently. Key principles include business entity, going concern, accruals (matching), consistency, prudence (conservatism), materiality, and historical cost. These ensure financial information is reliable and comparable.
会计概念与惯例为始终一贯地编制财务报表提供了框架。关键原则包括企业主体、持续经营、应计（配比）、一致性、审慎（稳健性）、重要性和历史成本。这些确保了财务信息的可靠性与可比性。
- Business entity: the business is separate from its owner. / 企业主体：企业与其所有者相分离。
- Going concern: assumes the business will continue operating. / 持续经营：假设企业将继续经营下去。
- Accruals: record expenses and incomes when incurred or earned, not when cash is paid or received. / 应计（配比）：在费用发生或收入赚取时记录，而非现金收付时。
- Consistency: same accounting treatments applied from one period to the next. / 一致性：各期采用相同的会计处理方法。
- Prudence: anticipate no profits but provide for all possible losses. / 审慎：不预计利润，但为所有可能发生的损失做好准备。
- Historical cost: assets are recorded at original cost. / 历史成本：资产按原始成本记录。
12. Ratio Analysis and Interpretation | 比率分析与解释
Ratio analysis helps stakeholders evaluate profitability, liquidity, and efficiency. Profitability ratios include gross profit margin, net profit margin, and return on capital employed (ROCE). Liquidity ratios, such as current ratio and quick (acid test) ratio, indicate the business’s ability to meet short-term obligations.
比率分析帮助利益相关者评估盈利能力、流动性和效率。盈利能力比率包括毛利率、净利润率和资本回报率（ROCE）。流动性比率，如流动比率和速动比率（酸性测试），表明企业履行短期偿债义务的能力。
Gross margin = (Gross Profit ÷ Sales) × 100%
毛利率 = (毛利 ÷ 销售收入) × 100%
Current ratio = Current Assets ÷ Current Liabilities
流动比率 = 流动资产 ÷ 流动负债
Efficiency ratios include trade receivables collection period and trade payables payment period, which measure how quickly the business collects from customers and pays suppliers. Interpreting trends and comparing with industry averages are vital for meaningful analysis. Ratios must be used alongside other financial and non-financial information.
效率比率包括应收账款周转天数和应付账款周转天数，衡量企业从客户收款和支付供应商的速度。分析趋势并与行业平均水平比较对于有意义地分析至关重要。比率必须与其他财务及非财务信息结合使用。
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