Core Knowledge Summary for AQA A-Level Accounting | A-Level AQA 会计：核心知识点梳理

📚 Core Knowledge Summary for AQA A-Level Accounting | A-Level AQA 会计：核心知识点梳理

This article summarises the essential topics for the AQA A-Level Accounting (7127) specification, covering financial accounting, management accounting, and investment appraisal techniques. Each concept is presented with clear explanations to aid revision.

本文梳理了 AQA A-Level 会计 (7127) 大纲的核心主题，涵盖财务会计、管理会计和投资评估技术，每项内容配有清晰的解释，助力备考复习。

1. The Accounting Equation and Double-Entry Bookkeeping | 会计等式与复式记账

The accounting equation states that at any time, a business’s assets are equal to its liabilities plus equity. This forms the basis for double-entry bookkeeping, where every transaction affects at least two accounts, maintaining the equation’s balance.

会计等式指出，在任何时点企业的资产等于负债加权益。这是复式记账的基础，每笔交易至少影响两个账户，保持等式平衡。

In double-entry, each debit must have a corresponding credit of equal amount. The rules are: increases in assets are debits, decreases are credits; increases in liabilities and capital are credits, decreases are debits. Income is credited and expenses are debited.

在复式记账中，每笔借方必须有等额的贷方。规则是：资产增加记借方，减少记贷方；负债和资本增加记贷方，减少记借方。收入记贷方，费用记借方。

Using T-accounts, students learn to record transactions and extract a trial balance. The accounting equation can be expanded: Assets = Liabilities + Capital + Profit − Drawings, reflecting the effect of income and expenses on equity.

利用 T 型账户，学生学习记录交易并编制试算平衡表。会计等式可扩展为：资产 = 负债 + 资本 + 利润 − 提款，反映收入和费用对权益的影响。

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2. Adjustments: Depreciation, Irrecoverable Debts, Accruals and Prepayments | 调整：折旧、坏账、应计与预付

At the end of an accounting period, adjustments are needed to match income and expenses to the correct period. Depreciation allocates the cost of a non-current asset over its useful life. The straight-line method charges equal annual amounts, while the reducing balance method applies a fixed percentage to the carrying amount.

会计期末需要进行调整，使收入和费用归属于正确的期间。折旧将非流动资产成本在其使用年限内分摊。直线法每年计提相同金额，而余额递减法则按固定百分比乘以账面价值计提。

Irrecoverable debts are written off as an expense. An allowance for doubtful debts is created based on past experience and prudence, adjusting the trade receivables figure. Increases in the allowance are charged to the income statement.

无法收回的坏账直接冲销为费用。根据以往经验和谨慎性原则计提坏账准备，调整应收账款金额。准备的增加额计入利润表。

Accruals (amounts owing but unpaid) and prepayments (amounts paid in advance) ensure that expenses and income are recorded in the correct period. This follows the accruals concept, a fundamental accounting principle.

应计项目（已发生但未支付的费用）和预付项目（提前支付的费用）确保收入和费用计入正确的期间，这遵循了应计概念这一基本会计原则。

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3. Preparation of Sole Trader Financial Statements | 独资经营者财务报表的编制

A sole trader’s income statement is divided into the trading account and the profit and loss account. The trading account calculates gross profit: Revenue − Cost of Sales. Cost of sales = Opening inventory + Purchases − Closing inventory.

独资经营者的利润表分为营业账户和损益账户。营业账户计算毛利润：销售收入 − 销售成本。销售成本 = 期初存货 + 购货 − 期末存货。

The profit and loss account deducts operating expenses and adds other income to arrive at profit for the year. This profit is then transferred to the capital section of the statement of financial position.

损益账户扣除营业费用并加上其他收入，得出当年利润。该利润随后转入财务状况表的所有者权益部分。

The statement of financial position lists non-current assets, current assets, current liabilities, non-current liabilities, and capital. The total assets must equal total liabilities plus capital, confirming the accounting equation.

财务状况表列示非流动资产、流动资产、流动负债、非流动负债和资本。总资产必须等于总负债加资本，以印证会计等式。

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4. Partnership Accounts: Appropriation and Changes | 合伙会计：利润分配与变动

In a partnership, the profit for the year is shared according to the partnership agreement. The appropriation account shows how profit is allocated: first, interest on capital is credited to partners, then interest on drawings may be charged, partners’ salaries are deducted, and the residual profit is shared in the profit-sharing ratio.

在合伙企业中，年度利润按合伙协议分配。利润分配账户展示利润分配方式：首先将资本利息拨给合伙人，接着可能扣除提款利息，再扣除合伙人工资，剩余利润按利润分配比例分享。

Partners maintain both capital accounts and current accounts. Capital accounts record fixed capital contributions, while current accounts record appropriations, drawings, and profit shares.

合伙人设有资本账户和往来账户。资本账户记录固定资本投入，往来账户则记录利润分配、提款和利润份额。

When a new partner is admitted or an existing partner retires, goodwill and asset revaluations must be accounted for. Goodwill is valued and shared among old partners in their old ratio, and revaluation gains or losses are distributed accordingly before adjusting capital balances.

当新合伙人加入或原合伙人退出时，必须对商誉和资产重估进行会计处理。商誉按旧比例在原有合伙人之间分配，重估损益相应分配，然后再调整资本余额。

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5. Limited Company Accounts: Share Capital, Reserves, and Published Statements | 有限公司会计：股本、准备金与公开报表

Limited companies issue ordinary shares and may also issue preference shares. Ordinary share capital is recorded at nominal value, with any excess over par credited to the share premium account, forming part of equity reserves.

有限公司发行普通股，也可能发行优先股。普通股股本按面值入账，超出面值的部分计入股份溢价账户，构成权益储备的一部分。

Reserves are divided into capital reserves (e.g., share premium, revaluation reserve) and revenue reserves (e.g., retained earnings). They strengthen the company’s financial position and can be used for bonus issues, subject to legal constraints.

准备金分为资本准备金（如股份溢价、重估储备）和收益准备金（如留存收益）。它们增强公司的财务状况，可在法律限制下用于发行红股。

A company’s published financial statements comply with IAS 1 Presentation of Financial Statements. They include a statement of profit or loss and other comprehensive income, a statement of financial position, a statement of changes in equity, and notes.

公司的公开财务报表遵循 IAS 1《财务报表列报》。包括损益及其他综合收益表、财务状况表、权益变动表以及附注。

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6. Ratio Analysis: Profitability, Liquidity, Efficiency, and Investment Ratios | 比率分析：盈利、流动、效率与投资比率

Ratio analysis interprets financial statements to evaluate performance. The following table summarises key ratios that AQA students must master.

比率分析通过解读财务报表来评估表现。下表总结了AQA学生必须掌握的关键比率。

Category	Ratio	Formula
Profitability	Gross Profit Margin	(Gross Profit ÷ Revenue) × 100%
	Net Profit Margin	(Profit for the Year ÷ Revenue) × 100%
	Return on Capital Employed	(Profit from Operations ÷ Capital Employed) × 100%
Liquidity	Current Ratio	Current Assets ÷ Current Liabilities
	Acid Test Ratio	(Current Assets − Inventories) ÷ Current Liabilities
Efficiency	Inventory Turnover	Cost of Sales ÷ Average Inventories
	Trade Receivables Collection	(Trade Receivables ÷ Credit Sales) × 365 days
	Trade Payables Payment	(Trade Payables ÷ Credit Purchases) × 365 days
Investment	Earnings per Share	Profit after Tax ÷ Number of Ordinary Shares
	Price/Earnings Ratio	Market Price per Share ÷ Earnings per Share
	Dividend Yield	(Dividend per Share ÷ Market Price per Share) × 100%

Profitability ratios show how well a business generates profit from sales and capital. Liquidity ratios assess the ability to meet short-term obligations, while efficiency ratios measure how effectively assets are used. Investment ratios help shareholders evaluate returns.

盈利比率反映企业从销售和资本中创造利润的能力。流动比率评估偿还短期债务的能力，效率比率衡量资产运用的有效性。投资比率帮助股东评估回报。

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7. Marginal Costing and Breakeven Analysis | 边际成本法与盈亏平衡分析

Marginal costing classifies costs into variable and fixed elements. Contribution per unit is the selling price less variable cost per unit. It is used to cover fixed costs and then generate profit.

边际成本法将成本分为变动成本和固定成本。单位贡献毛益是售价减去单位变动成本，先用于弥补固定成本，之后产生利润。

Contribution per unit = Selling Price − Variable Cost per unit

The breakeven point is where total revenue equals total costs (profit = 0). It can be calculated in units as: Fixed Costs ÷ Contribution per unit. Margin of safety is the difference between actual sales and breakeven sales.

盈亏平衡点是总收入等于总成本（利润为零）时的产量。计算公式为：固定成本 ÷ 单位贡献毛益。安全边际是实际销量与盈亏平衡销量之差。

Breakeven Point (units) = Fixed Costs ÷ Contribution per unit

Target profit analysis involves adding desired profit to fixed costs before dividing by contribution per unit. Limiting factor analysis identifies the scarce resource and maximises contribution per unit of that factor.

目标利润分析将期望利润加入固定成本再除以单位贡献毛益。限制因素分析识别稀缺资源，并最大化每单位该资源的贡献毛益。

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8. Budgeting and Variance Analysis | 预算与差异分析

Budgets are financial plans that coordinate business activities and provide targets. Cash budgets forecast cash inflows and outflows to manage liquidity, while master budgets integrate income statements and statements of financial position.

预算是协调业务活动、提供目标的财务计划。现金预算预测现金流入和流出以管理流动性，而总预算则整合利润表和财务状况表。

Standard costing sets predetermined costs for materials, labour, and overheads. Variances are the differences between actual

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