📚 Year 10 CIE Accounting: Core Knowledge Summary | 10年级CIE会计：核心知识点梳理
Welcome to your comprehensive revision guide for Year 10 CIE Accounting. This article walks you through every fundamental topic you will encounter, from the basic double-entry system to the preparation of financial statements with adjustments. Use this summary to consolidate your understanding and build a solid foundation for your IGCSE examination.
欢迎使用这份10年级CIE会计综合复习指南。本文将带你梳理所有关键知识点——从复式记账的基本原理，到包含调整的财务报表编制。希望通过梳理，帮助你夯实基础，为IGCSE考试做好充分准备。
1. The Purpose and Principles of Accounting | 会计的目的与原则
Accounting is the process of recording, classifying, summarising, and interpreting financial transactions to provide information for decision-making. Its main purpose is to help stakeholders – such as owners, managers, lenders, and tax authorities – understand the financial performance and position of a business.
会计是记录、分类、汇总和解释财务交易的过程，其目的是为决策提供信息。会计的主要作用在于帮助所有者、管理层、债权人和税务机关等利益相关者了解企业的经营业绩和财务状况。
Several key accounting principles underpin the preparation of financial statements. The business entity concept states that the affairs of the business must be kept separate from the personal affairs of its owner. The going concern concept assumes that the business will continue to operate for the foreseeable future. The historical cost concept requires assets to be recorded at their original purchase price, while the prudence concept ensures that profits are not overstated and potential losses are recognised as soon as they are foreseen. Consistency means that the same accounting methods should be applied from one period to the next, unless a change is justified, and materiality allows insignificant items to be treated in a simpler way. The accruals (matching) concept dictates that revenues and expenses should be recognised in the period they are earned or incurred, not when cash is received or paid.
会计确认、计量和报告必须遵循若干基本原则。企业主体概念规定企业事务必须与所有者个人事务严格分离。持续经营概念假设企业在可预见的未来将继续经营。历史成本概念要求资产按原始购置成本入账，谨慎性概念则要求不高估利润，并及早确认可能的损失。一致性原则要求各会计期间采用相同的会计方法，除非变更有充分理由；重要性原则则允许对不重要的项目简化处理。应计（配比）概念规定，收入和费用应在实现或发生的期间确认，而非在现金收付时确认。
2. The Accounting Equation | 会计等式
The accounting equation is the foundation of the double-entry system. It can be expressed as:
会计等式是复式记账体系的基础，其基本形式为：
Assets = Capital + Liabilities
Every transaction affects this equation, but the equation must always remain in balance. When a business commences, the owner’s capital invested equals the assets funded. Liabilities represent amounts owed to outsiders. As the business trades, revenue increases net assets (and therefore capital), while expenses reduce them. Thus, the expanded equation is:
每笔交易都会影响会计等式，但等式始终保持平衡。企业成立时，所有者投入的资本等于所筹集的资产。负债代表欠外部的金额。随着企业进行经营活动，收入会增加净资产（进而增加资本），费用则减少净资产。因此，扩展的会计等式为：
Assets = Capital + Liabilities + (Revenue − Expenses)
Understanding this equation helps you analyse how transactions such as buying inventory on credit, paying expenses, or introducing further capital affect the financial position.
理解这一等式有助于分析赊购存货、支付费用或追加投资等交易如何影响企业的财务状况。
3. Double Entry Bookkeeping | 复式记账法
The double-entry system records each transaction twice: one account is debited and another account is credited with the same amount. The rule is that for every debit there must be an equal and corresponding credit. This ensures the accounting equation remains balanced after each entry.
复式记账法对每笔交易进行双重记录：一个账户被借记，另一个账户被贷记，金额相等。其规则是：每一笔借必有贷，借贷必相等，从而保证每笔分录后会计等式仍然保持平衡。
A simple way to remember the rules for different account types is the mnemonic DEAD CLIC: Debit increases in Expenses, Assets, and Drawings; Credit increases in Liabilities, Income, and Capital. Conversely, to reduce an asset you credit it, and to reduce a liability you debit it.
记忆不同账户类型的借贷增减规则可使用口诀 DEAD CLIC：借记增加费用（Expenses）、资产（Assets）和提款（Drawings）；贷记增加负债（Liabilities）、收入（Income）和资本（Capital）。反之，要减少资产就贷记该账户，要减少负债就借记该账户。
For example, when a business buys goods for cash, the Purchases account (an expense) is debited, and the Cash account (an asset) is credited.
例如，企业用现金购买商品，则借记购货账户（费用类），贷记现金账户（资产类）。
4. Source Documents | 原始凭证
Every entry in the accounting records must be supported by a source document. These documents provide evidence of transactions and are used to enter data into the books of original entry. Common source documents include invoices (issued for credit sales and purchases), credit notes (issued when goods are returned or an overcharge is corrected), debit notes (issued to request a credit note or adjust an invoice), receipts (acknowledging money received), and bank statements (showing cash movements).
会计记录中的每一笔分录都必须有原始凭证作为依据。原始凭证为交易提供了证据，并被用来登入原始账簿。常见的原始凭证包括：发票（用于赊销和赊购）、贷项通知单（退货或更正经多收款项时签发）、借项通知单（用于要求对方发出贷项通知单或调整发票）、收据（确认收到款项）以及银行对账单（反映现金变动）。
These documents are essential for maintaining an audit trail and for verifying the accuracy of the accounting records.
这些凭证对于保持审计轨迹和核实会计记录的准确性至关重要。
5. Books of Original Entry | 原始账簿
Transactions are first recorded in books of original entry (also called books of prime entry) before being posted to the ledger. The main books are:
交易首先记录在原始账簿（也称日记账簿）中，之后再过入分类账。主要的原始账簿包括：
- Sales Journal: records credit sales of goods.
- Sales Journal (销售日记账): 记录商品赊销。
- Purchases Journal: records credit purchases of goods.
- Purchases Journal (采购日记账): 记录商品赊购。
- Sales Returns Journal: records goods returned by customers.
- Sales Returns Journal (销货退回日记账): 记录客户退回的商品。
- Purchases Returns Journal: records goods returned to suppliers.
- Purchases Returns Journal (购货退回日记账): 记录退回给供应商的商品。
- Cash Book: records all cash and bank transactions.
- Cash Book (现金簿): 记录所有现金和银行存款交易。
- General Journal: records non-regular transactions, such as the purchase of a non-current asset on credit, correction of errors, and opening entries.
- General Journal (普通日记账): 记录非常规交易，如赊购非流动资产、更正错账和期初开账分录。
Totals from these journals are periodically posted to the relevant ledger accounts, which forms the next stage of the accounting cycle.
这些日记账的合计金额会定期过入相应分类账账户，构成本会计循环的后续步骤。
6. Ledger Accounts and the Trial Balance | 分类账与试算平衡表
A ledger account is a 'T-account' format that summarises all transactions of a particular item. The left side is the debit side, and the right side is the credit side. Entries from the books of original entry are posted to these individual accounts. At the end of a period, each account is balanced, and the balance is brought down for the next period.
分类账账户采用“T型账户”格式，汇总某一特定项目的所有交易。左侧为借方，右侧为贷方。原始账簿中的分录会被过入这些独立账户。期末，每个账户结出余额，并将余额结转至下期。
A trial balance is a list of all ledger account balances separated into debit and credit columns. The total of the debit column must equal the total of the credit column. If the trial balance agrees, it only proves the arithmetic accuracy of the double-entry records; it does not guarantee that no errors have been made. Errors such as omission, commission, principle, compensating errors, original entry errors, and complete reversal of entries will not be revealed by the trial balance.
试算平衡表是列示所有分类账账户余额的清单，分为借方和贷方两栏。借方栏合计数必须等于贷方栏合计数。试算平衡表平衡仅能证明复式记账的算术准确性，并不能保证没有错误。漏记、串户、原则性错误、抵销性错误、原始分录错误以及完全反向分录等错误，均无法通过试算平衡表发现。
7. Cash Book and Petty Cash | 现金簿与备用金
The cash book serves both as a book of original entry and a ledger account for cash and bank. A two-column cash book has separate columns for cash and bank on both the debit and credit sides. A three-column cash book includes an additional column for cash discounts (discount allowed on the debit side, discount received on the credit side).
现金簿既是原始账簿，也是现金和银行存款的分类账户。两栏式现金簿的借方和贷方都分别设有“现金”和“银行存款”栏。三栏式现金簿则额外增加一列“现金折扣”（借方记录给予的折扣，贷方记录收到的折扣）。
Petty cash is a small amount of cash kept on the premises to cover minor expenses such as postage, stationery, and travelling. It operates under the imprest system: a fixed float is maintained, and at the end of a period the petty cashier is reimbursed for the exact amount spent, bringing the float back to its original level. A petty cash book records these small payments, analysed into appropriate expense columns.
备用金是存放于企业内部用于小额开支（如邮费、文具和差旅费）的少量现金，采用定额备用金制度管理：设定固定备用金定额，期末备用金保管员报销已花掉的金额，使备用金恢复至原定额。备用金登记簿记录这些小额支付，并按费用类别分栏分析。
8. Bank Reconciliation | 银行对账
A business maintains a cash book record of its bank transactions, while the bank also keeps a record through the bank statement. Differences between the cash book balance and the bank statement balance often arise due to timing differences or errors. The purpose of a bank reconciliation statement is to explain these differences and arrive at the correct bank balance.
企业在现金簿中记录银行存款交易，银行则通过银行对账单保留相应记录。由于时间差或错误，现金簿余额与银行对账单余额经常不一致。银行存款余额调节表的目的就是解释这些差异，得出现金正确的余额。
Common items causing differences include unpresented cheques (cheques issued but not yet cleared by the bank), uncredited deposits (amounts paid into the bank but not yet recorded by the bank), bank charges and interest, standing orders, direct debits, and dishonoured cheques that the bank has reversed. The reconciliation begins with the cash book balance and adjusts it for items in the bank statement not yet recorded in the cash book. Then the adjusted cash book balance is compared with the bank statement balance by adding or subtracting unpresented cheques and uncredited deposits, to prove agreement.
造成差异的常见项目包括：未兑现支票（企业已开出但银行尚未支付的支票）、未贷记存款（企业已存入但银行未记录的款项）、银行手续费和利息、自动转账支付、直接借记收款以及因存款不足被退回的支票等。调节表通常从现金簿余额出发，调整银行对账单上已反映但现金簿尚未记录的项目，得出修正后的现金簿余额；再将修正后余额与银行对账单余额比较，加上或减去未兑现支票和未贷记存款，验证二者是否一致。
9. Control Accounts | 控制账户
In a manual accounting system where the sales and purchases ledgers contain many individual accounts, control accounts are maintained in the general ledger to summarise the total amounts. The sales ledger control account records the total owed by all trade receivables, and the purchases ledger control account records the total owed to all trade payables. These accounts help localise errors and are used to prepare the trial balance quickly.
在手工会计系统中，由于销售分类账和采购分类账含有大量个人账户，总账中会设置控制账户以汇总总额。销货分类账控制账户记录全部应收账款的总额，购货分类账控制账户记录全部应付账款的总额。这些账户有助于缩小错误查找范围，并便于快速编制试算平衡表。
Entries in the control accounts come from totals of the books of original entry. For example, the sales ledger control account is debited with total credit sales, and credited with total receipts from customers, sales returns, and bad debts written off. The balance of the control account should equal the sum of the individual balances in the subsidiary ledger.
控制账户的分录来自原始账簿的合计数。例如，销货分类账控制账户借方登记赊销总额，贷方登记从客户收到的款项总额、销售退回及注销的坏账。控制账户余额应与明细分类账中各个账户余额之和相等。
10. Financial Statements for Sole Traders (Introduction) | 独资企业财务报表简介
For a sole trader, the final accounts consist of the income statement (trading and profit & loss account) and the statement of financial position (balance sheet). The trading account calculates gross profit by deducting cost of sales from net sales. Cost of sales is determined as: opening inventory + purchases − purchases returns + carriage inwards − closing inventory. The profit & loss account then lists other incomes and expenses to arrive at the net profit for the period.
独资企业的期末报表包括利润表（分为购销和损益部分）和资产负债表。购销账部分通过净销售额减去销售成本来计算毛利润。销售成本的计算公式为：期初存货 + 购货 − 购货退回 + 购货运费 − 期末存货。损益部分则列示其他收益和费用，最终得出当期净利润。
The statement of financial position presents the business’s assets, liabilities, and capital at a specific date. Non-current assets are listed first, followed by current assets. Current liabilities are deducted from the total assets to show net assets, which equal the owner’s capital (original capital + net profit − drawings). The layout follows the accounting equation, and it must always balance.
资产负债表列示企业在某一特定日期的资产、负债和所有者权益。非流动资产列于上方，流动资产次之。从资产总额中扣除流动负债，得出净资产，该净资产应等于所有者资本（原始资本 + 净利润 − 提款）。报表格式遵循会计等式，且始终保持平衡。
11. Accruals and Prepayments | 应计与预付项目
Under the accruals concept, expenses and income must be matched to the period to which they relate, regardless of when cash is paid or received. An accrual is an expense that has been incurred during the accounting period but has not yet been paid. A prepayment is an expense that has been paid in advance and relates to a future period. Similar principles apply to income: accrued income is earned but not yet received, and prepaid income is received in advance.
根据应计概念，费用和收入必须与它们所属的会计期间相匹配，而不论现金何时支付或收取。应计费用是指本期已经发生但尚未支付的费用。预付费用是指提前支付、与未来期间相关的费用。收入的处理同理：应计收入是已赚取但尚未收到的收入，预收收入是提前收到款项的、属于未来期间的收入。
The adjustment is made in the ledger and in the income statement. For accrued expenses, the expense account is increased and a liability is created (other payables). For prepaid expenses, the expense is reduced and an asset is shown. In the income statement, the expense figure is adjusted to the amount relating to the period, and the statement of financial position includes the accrued or prepaid amounts as a current liability or current asset respectively.
调整分录需在分类账和利润表中反映。对于应计费用，增加费用账户，同时确认一项负债（其他应付款）；对于预付费用，减少费用账户，同时确认一项资产。在利润表中，费用金额调整为本期应归属的数额；资产负债表中则将应计费用列作流动负债，预付费用列作流动资产。
12. Depreciation and Bad Debts | 折旧与坏账
Non-current assets (except land) lose value over time due to wear and tear, obsolescence, or the passage of time. This loss is charged as depreciation in the income statement, and the accumulated depreciation is deducted from the cost of the asset in the statement of financial position. The straight-line method calculates an equal amount each year:
非流动资产（除土地外）因磨损、过时或时间流逝而逐渐失去价值。这部分价值损耗在利润表中以折旧费用列示，累计折旧则在资产负债表中从资产原值中扣除。直线法每年计提等额折旧：
Annual depreciation = (Cost − Residual value) ÷ Useful life
Alternatively, the reducing balance method applies a fixed percentage to the net book value (cost less accumulated depreciation) each year, resulting in higher depreciation in early years. When an asset is sold, the disposal account is used to remove the asset and calculate the profit or loss on disposal.
另一种方法是余额递减法，每年按账面净值（原值减累计折旧）的一个固定百分比计算折旧，导致早期折旧额较高。当资产出售时，使用处置账户注销资产，并计算处置损益。
Bad debts arise when a customer is unable to pay what they owe. An irrecoverable debt is written off directly: debit Bad Debts (expense), credit Trade Receivable. The prudence concept also requires a provision for doubtful debts to be created for receivables that may not be recovered. An increase in the provision is charged as an expense, while a decrease is shown as income. The net trade receivables figure in the statement of financial position is shown after deducting both the specific bad debts and the provision for doubtful debts.
坏账发生在客户无法偿还欠款时。确凿无法收回的坏账直接注销：借记坏账费用，贷记应收账款。基于谨慎性原则，还需为可能无法收回的应收款计提呆账准备。准备金额的增加计入费用，减少则列为收益。资产负债表中的应收账款净额，需扣减已注销的具体坏账和呆账准备后列示。
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