ACF5950 · Introduction to Financial Accounting
Double-Entry Accounting: Journals, Ledgers and the Trial Balance
Week 3 turns transaction analysis into the formal recording process: the rules of debit and credit for each element, recording in the general journal, posting to ledger accounts, and extracting an unadjusted trial balance. You learn the normal-balance map — assets, expenses and drawings increase with debits; liabilities, equity and income increase with credits — and why a balanced trial balance proves arithmetic equality but not the absence of error. Journalising, posting and the trial balance are core, heavily-weighted skills in both the Quiz/Test and the 50% hurdle exam. The week shown is the unit's standard arc — confirm the exact teaching week on Moodle / the unit outline.
What this chapter covers
- 01The account and the T-account: debit (left) and credit (right) sides
- 02The debit/credit rules and normal balances: assets, expenses, drawings ↑ debit; liabilities, equity, income ↑ credit
- 03The rule of double entry: total debits = total credits for every transaction
- 04The general journal: date, account debited, account credited (indented), amounts, narration
- 05Posting journal entries to ledger accounts and balancing each account
- 06Preparing an unadjusted trial balance and checking debits = credits
- 07What the trial balance does and does not prove (omitted entries, wrong accounts, compensating errors go undetected)
Journalise, post and prove the trial balance
- +1Journalise events 1 and 2: (1) Dr Cash 40,000 / Cr Capital 40,000 (an asset and equity both rise); (2) Dr Equipment 9,000 / Cr Cash 9,000 (asset swap).
- +1Journalise events 3 and 4: (3) Dr Accounts receivable 6,500 / Cr Service revenue 6,500 (asset and income up); (4) Dr Wages expense 2,200 / Cr Cash 2,200 (expense up, asset down).
- +1Post and balance the ledger: Cash = 40,000 − 9,000 − 2,200 = 28,800 (debit); Equipment 9,000 (debit); Accounts receivable 6,500 (debit); Wages expense 2,200 (debit); Capital 40,000 (credit); Service revenue 6,500 (credit).
- +1Trial balance: total debits = 28,800 + 9,000 + 6,500 + 2,200 = 46,500; total credits = 40,000 + 6,500 = 46,500. Debits equal credits, so the trial balance balances.
Key terms
- Debit and credit
- The two sides of every account: debit is the left side, credit the right. Assets, expenses and drawings increase with debits; liabilities, equity and income increase with credits.
- Normal balance
- The side on which an account is usually balanced. Debit-normal accounts: assets, expenses, drawings. Credit-normal accounts: liabilities, equity, income.
- General journal
- The chronological book of original entry, recording each transaction as a date, the account debited, the account credited (indented), the amounts, and a narration.
- Posting
- Transferring the debit and credit amounts from the journal to the corresponding ledger accounts.
- General ledger
- The complete collection of an entity's accounts, in which each account's running balance is maintained.
- Trial balance
- A list of all ledger account balances at a date used to check that total debits equal total credits; it proves arithmetic equality but not the absence of error.
Double-Entry Accounting: Journals, Ledgers and the Trial Balance FAQ
How do I remember which accounts increase with a debit?
Use the normal-balance map: assets, expenses and drawings are debit-normal (they increase with debits); liabilities, owner's equity and income are credit-normal (they increase with credits). A common memory aid groups the debit-normal accounts as Drawings, Expenses and Assets. Every transaction still needs equal total debits and credits.
If the trial balance balances, are the books correct?
Not necessarily. A balanced trial balance only shows that total debits equal total credits. It will still balance if you omit an entire entry, post to the wrong account of the same type (say the wrong expense), reverse an entry entirely, or make two errors that cancel out. Balancing is an arithmetic check, not a guarantee of accuracy.
What is the difference between the journal and the ledger?
The journal is the chronological record — transactions are entered in date order as they occur, each with its debit, credit and narration. The ledger is organised by account — each account collects all the postings that affect it so you can compute its balance. Journalising comes first; posting moves the amounts into the ledger.
Can AI help me with double-entry journal entries in ACF5950?
Yes, as a tutor. Sia can explain the debit/credit rule for each element, work through journalising and posting a transaction set, and check that your trial balance ties. It is for learning and rehearsal, not for completing graded work — Monash academic-integrity rules apply, so confirm the AI policy for the Quiz/Test, Project and exam on Moodle.
Exam move
Make the debit/credit rules reflexive before you attempt speed. Learn the normal-balance map cold, then practise the full loop repeatedly: journalise a set of six to ten transactions with narrations, post to T-accounts, balance each account, and extract a trial balance that ties. Always ask two questions per entry — which elements change, and does total debit equal total credit? Deliberately study the errors a trial balance cannot catch (omissions, wrong-account postings, compensating errors) because exam questions probe exactly that. This recording process is high-frequency in the Quiz/Test and the hurdle exam and is the input to every adjusting and statement-preparation task later, so accuracy here compounds across the unit and protects your WAM.
Working through Double-Entry Accounting: Journals, Ledgers and the Trial Balance in ACF5950? Sia is AskSia’s AI Business and Economics tutor — ask any ACF5950 Double-Entry Accounting: Journals, Ledgers and the Trial Balance question and get a clear, step-by-step explanation grounded in how ACF5950 is taught and assessed. Read this chapter free, then take your hardest questions to Sia.
