📚 Year 10 CAIE Accounting: Core Topics Summary | Year 10 CAIE 会计：核心知识点梳理
Understanding accounting is fundamental for any student aspiring to pursue business, finance, or management. The CAIE Year 10 Accounting syllabus introduces the key principles and practices of recording, classifying, and summarizing financial transactions. This article outlines the core topics every student must master, providing concise explanations in both English and Chinese.
对于希望学习商业、金融或管理的学生来说，理解会计知识是基础。CAIE 十年级会计大纲介绍了记录、分类和汇总财务交易的关键原则与实务。本文梳理了每个学生必须掌握的核心知识点，并以中英双语进行简明解释。
1. The Accounting Equation | 会计等式
The accounting equation is the foundation of double entry bookkeeping:
会计等式是复式记账的基础：
Assets = Liabilities + Equity
资产 = 负债 + 所有者权益
This means that everything the business owns (assets) is financed either by borrowing (liabilities) or by the owner’s investment and retained profits (equity).
这意味着企业所拥有的一切（资产）要么通过借款（负债）融资，要么由所有者的投资和留存利润（所有者权益）提供资金。
Every transaction a business makes has a dual effect on the accounting equation. For example, when a business purchases equipment with cash, the asset ‘Equipment’ increases, while the asset ‘Cash’ decreases, keeping the equation in balance.
企业进行的每笔交易都会对会计等式产生双重影响。例如，当企业用现金购买设备时，资产“设备”增加，同时资产“现金”减少，等式保持平衡。
2. Source Documents and Books of Prime Entry | 原始凭证与原始分录簿
Before recording transactions in the accounting system, a business must have evidence in the form of source documents. Common source documents include invoices issued for credit sales, receipts for cash received, credit notes for returns, and cheque counterfoils.
在会计系统中记录交易之前，企业必须有原始凭证作为依据。常见的原始凭证包括赊销开具的发票、现金收款的收据、退货的贷项通知单以及支票存根。
Transactions are first recorded in books of prime entry, which group similar transactions together. These include the sales journal, purchases journal, returns journals, general journal, and cash book. Subsequently, entries from these books are posted to the ledger accounts.
交易首先记录在原始分录簿中，这些账簿将相似交易分类汇总。它们包括销售日记账、采购日记账、退货日记账、普通日记账和现金簿。随后，这些账簿中的分录将过账至分类账账户。
3. Double Entry System | 复式记账系统
Under the double entry system, every financial transaction requires at least one debit entry and one credit entry. The total value of debits must always equal the total value of credits.
在复式记账系统下，每笔财务交易至少需要一个借方分录和一个贷方分录。借方总额必须始终等于贷方总额。
The rules for debits and credits depend on the type of account. Assets and expenses increase with a debit and decrease with a credit. Liabilities, capital, and revenue increase with a credit and decrease with a debit.
借方和贷方的规则取决于账户类型。资产和费用增加记入借方，减少记入贷方。负债、资本和收入增加记入贷方，减少记入借方。
A typical account is presented as a T-account, with the debit side on the left and the credit side on the right. The title of the account appears at the top.
典型的账户以 T 型账户呈现，左边为借方，右边为贷方。账户名称位于顶部。
4. Ledger Accounts and Balancing | 分类账账户及结平
After posting from the books of prime entry, each ledger account must be balanced at the end of an accounting period. Balancing involves finding the difference between total debits and total credits, known as the balance carried down (c/d).
从原始分录簿过账后，每个分类账账户必须在一个会计期间结束时结平。结平是指计算借方总额和贷方总额之间的差额，称为结转余额（c/d）。
This balance is then brought down (b/d) as the opening balance for the next period. Accounts with more total debits have a debit balance, while those with more total credits have a credit balance.
该余额随后转入（b/d）作为下一期的期初余额。借方总额较大的账户有借方余额，而贷方总额较大的账户有贷方余额。
Typical accounts with debit balances include assets and expenses; credit balances include liabilities, capital, and income.
通常具有借方余额的账户包括资产和费用；具有贷方余额的账户包括负债、资本和收入。
5. Trial Balance | 试算平衡表
A trial balance is a list of all ledger account balances, separated into debit and credit columns. Its purpose is to check the arithmetical accuracy of the double entry records.
试算平衡表是一份列示所有分类账账户余额的清单，分为借方和贷方两栏。其目的是检查复式记账记录的算术准确性。
If total debits equal total credits, the trial balance is said to ‘balance’. However, a balanced trial balance does not guarantee that there are no errors; some mistakes, such as omission or principle errors, do not affect the equality.
如果借方总额等于贷方总额，则试算平衡表“平衡”。然而，试算表平衡并不能保证没有错误；有些错误，如遗漏或原则性错误，不会影响等式平衡。
If the trial balance does not balance, the accountant must look for errors such as incorrect addition, posting the wrong amount to one side, or entering a transaction on only one side.
如果试算表不平衡，会计人员必须查找错误，例如加法错误、将错误金额过账到某一边，或者只在一方记录了交易。
6. Income Statement | 利润表
The income statement calculates the profit or loss of a business over a specific period. For a trading business, it starts with revenue from sales, less cost of goods sold (COGS), to find gross profit.
利润表计算企业在一定期间内的利润或亏损。对于贸易企业，它从销售收入开始，减去销售成本（COGS），得出毛利。
Cost of goods sold is calculated as: Opening inventory + Purchases − Purchases returns − Closing inventory. Gross profit is then adjusted by adding other income and deducting operating expenses to arrive at net profit.
销售成本计算公式为：期初存货 + 采购 − 采购退货 − 期末存货。然后毛利加上其他收入，减去经营费用，得出净利润。
Common expenses include rent, wages, insurance, and depreciation. The income statement follows the accruals concept, meaning revenues and expenses are recorded when earned or incurred, not necessarily when cash is received or paid.
常见费用包括租金、工资、保险费和折旧。利润表遵循权责发生制概念，即收入和费用在其赚取或发生时记录，而不一定是现金收付时。
7. Statement of Financial Position | 资产负债表
The statement of financial position shows the assets, liabilities, and equity of the business at a particular point in time. It is effectively a detailed representation of the accounting equation.
资产负债表列示企业某一特定时点的资产、负债和所有者权益。它实际上是会计等式的详细体现。
Assets are classified as non-current (long-term) and current (short-term). Non-current assets include buildings, machinery, and vehicles; current assets include inventory, trade receivables, and cash.
资产分为非流动资产（长期）和流动资产（短期）。非流动资产包括建筑物、机器设备和车辆；流动资产包括存货、应收账款和现金。
Liabilities are similarly split into non-current (e.g., long-term loans) and current (e.g., trade payables, bank overdraft). Equity represents the owner’s capital plus retained profits.
负债同样分为非流动负债（如长期贷款）和流动负债（如应付账款、银行透支）。所有者权益代表所有者资本加上留存利润。
8. Bank Reconciliation | 银行余额调节
A bank reconciliation is prepared to reconcile the closing balance in the cash book with the balance shown on the bank statement. Differences arise due to timing and items recorded by the bank but not yet in the cash book.
编制银行余额调节表是为了核对现金簿的期末余额与银行对账单
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