ACC1701B Chap.2 Transactions, Debits and Credits
Transactions, Debits and Credits
Direction before side
Double-entry starts with the business event, not with a memorised journal. Decide whether an event has occurred, name the affected accounts, classify each account, and determine whether it increased or decreased. Only then apply the debit-credit convention. Assets, expenses and dividends normally increase with debits; liabilities, equity and revenue normally increase with credits.
A decrease uses the opposite side. Keeping classification, direction, normal balance and entry side as four distinct decisions prevents the words debit and credit from being mistaken for good and bad outcomes.
Translate the event before recording it
Owner cash received for shares increases cash and contributed equity, not revenue.
Cash paid for equipment exchanges one asset for another at purchase, not an expense for the period. A service completed on credit creates revenue and a receivable even though cash has not arrived. Collection of that receivable later exchanges receivable for cash and does not earn revenue again.
Writing this ordinary-language account story before the entry makes the final debit and credit a consequence of analysis rather than a guess.
Equality is necessary but incomplete
Total debits must equal total credits for every complete entry, and a trial balance tests that arithmetic across the ledger. Equality cannot show that the correct account, amount or reporting period was used.
An equipment purchase posted to an expense can balance while understating assets and profit. An omitted transaction affects neither column. Equal but reversed amounts can also preserve the totals.
Match entries to invoices, contracts, bank records and dates so recognition and classification are tested independently of arithmetic.
Use the equation as a second check
After posting, state which assets, liabilities and equity components changed and verify that the accounting equation remains balanced. Then recompute key results such as ending cash and profit without relying on the entry totals.
This catches a transaction placed on equal sides but in the wrong account family. In a written solution, name the event, show the entry, explain the statement effect and separate cash from performance. That chain is more informative than a journal alone and makes a directional error visible before it moves into adjustments or ratios.
What this chapter covers
- 01
Economic events and transactions
- 02
Account families
- 03
Normal balances
- 04
Double-entry equality
- 05
Journal entries
- 06
Trial-balance limitations
- 07
Independent document and accounting-equation checks for balanced entries
- 08
Collection distinguished from earning revenue
Worked example · free
Record a month of events
- 2Name accounts.
- 2Choose directions.
- 2Post equal sides.
- 2Recompute cash and profit.
Key terms
- Debit
- The left side of an account, used for increases in normal debit-balance accounts.
- Credit
- The right side of an account, used for increases in normal credit-balance accounts.
Transactions, Debits and Credits FAQ
Does debit mean bad?
No. Debit and credit are account sides, not favourable and unfavourable outcomes. Their effect depends on the account family and whether that account is increasing or decreasing.
Why can a trial balance agree and still be wrong?
The wrong account, amount or period can be used with equal debit and credit totals, and a completely omitted event affects neither column. Match entries to independent documents and dates.
When is collection revenue?
Collection is revenue only when the earning event and receipt coincide. Collecting an existing receivable increases cash and reduces that asset without creating new revenue or profit.
Exam move
Use a four-column worksheet headed account, direction, normal balance and entry side. For each event, complete the first two columns before looking at debit or credit. Practise with owner financing, borrowing, credit sales, collections, cash expenses, equipment purchases and liability repayments so every major account family appears in both increase and decrease form.
Read the completed entry back as a business sentence: which resource, claim, revenue or expense changed and why? Then verify total debits and credits and independently restate the accounting-equation effect. Add error drills in which the entry balances but uses the wrong account, amount or date. Explain why the trial balance cannot detect that error and identify the invoice, contract, bank record or cutoff evidence that could.
When reviewing mistakes, classify them as event recognition, account family, direction, normal balance or arithmetic. Redo only the failed stage before rewriting the whole journal. Mix collection and earning events frequently because recording revenue twice is a common conceptual error. Finish a set by recomputing cash and profit from the transaction list without reading your journal totals.
Agreement across the journal, equation and independent calculation is stronger evidence than balanced columns alone. Under time pressure, keep the verbal account story to one short line, but never skip it.
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