Topic module

Double Entry, Source Documents and Ledgers

Recording transactions from source documents through books of prime entry and ledger accounts, balancing accounts and transferring figures to financial statements.

Long-form learning
Concept to Risk to Memory to Check-up

How to study A-level Accounting

Build each solution in a fixed order: identify the accounting relationship, record or calculate methodically, reconcile the result, then interpret it for the relevant decision and stakeholder.

Core concepts

Concept 1

Every transaction has equal debit and credit effects within the double-entry model.

Exam cue: Name the two accounts before deciding which is debited and credited.

Concept 2

Source documents support entries in books of prime entry, which are posted to ledger accounts and summarised for reporting.

Exam cue: Classify each account and decide whether it increases or decreases.

Concept 3

The effect on assets, liabilities, capital, income and expenses determines the entry rather than the everyday meaning of debit or credit.

Exam cue: Keep cash, credit, returns and settlement transactions distinct when selecting the book and ledger entry.

Risk pitfalls and guardrails

Treating debit as always bad and credit as always good.

Guardrail: Do not select a familiar formula or entry until you have classified the accounts, period, user and decision named in the task.

Recording only the cash side of a transaction.

Guardrail: Do not select a familiar formula or entry until you have classified the accounts, period, user and decision named in the task.

Posting a credit purchase or sale directly as a cash transaction.

Guardrail: Do not select a familiar formula or entry until you have classified the accounts, period, user and decision named in the task.

Memory anchors

Double Entry

Every transaction records equal total debits and credits.

Source Document

A source document provides evidence and details of a transaction.

Book of Prime Entry

A book of prime entry groups transactions before ledger posting.

Ledger

A ledger collects entries by account.

Asset Increase

An increase in an asset is normally recorded as a debit.

Income Increase

An increase in income is normally recorded as a credit.

Checkpoint rule

Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.

Knowledge Check (after reading)

Short check-up to confirm understanding of this module.

Check-up Questions

1-2 question checkpoint

A business buys office equipment for £6,000 by bank transfer. Which entry is correct?

Goods costing £2,400 are bought on credit from Zed Supplies for resale. Which entry records the purchase?

Answer all questions to submit.

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