Every journal entry in double-entry accounting follows one standard format: the date, the account(s) debited listed first at the left margin, the account(s) credited listed next and indented, the amounts in debit and credit columns, and a one-line narration underneath. Total debits must equal total credits — no exceptions, ever. This page walks through the full anatomy, three worked examples of increasing difficulty, and the mistakes that show up most often in real books.
The anatomy of a journal entry
| Element | Where it sits | What it does |
|---|---|---|
| Date | Left column | The transaction date — not the date you got around to recording it |
| Accounts debited | Flush left, first | Named exactly as in the chart of accounts |
| Accounts credited | Indented, after debits | The indentation separates credits visually before you even read the columns |
| Debit / credit columns | Right side | Column totals must be equal |
| Narration | Below, in brackets | One line that lets an auditor reconstruct the story without you in the room |
| Reference / folio | Beside accounts | Links the entry to its ledger posting — automatic in software |
The indentation convention is centuries old and survives in every modern system’s entry screen, because it works: debits left, credits pushed right, readable at a glance.
Example 1 — the simplest case: a cash sale
Mar 5 Cash.............................. 5,000
Sales revenue................. 5,000
(Cash sale — invoice #1042)
Cash is an asset and assets increase on the debit side; revenue increases on the credit side. Two lines, balanced, done. If the debit/credit directions ever feel uncertain, sketch the two accounts as T-accounts first — the entry then writes itself.
Example 2 — a compound entry: buying equipment with cash plus a loan
On March 12 the business buys a $40,000 machine, paying $10,000 cash and financing $30,000:
Mar 12 Equipment......................... 40,000
Cash.......................... 10,000
Loan payable.................. 30,000
(Machine purchase — 25% down, balance financed)
Three lines, still one entry, still balanced: one debit of 40,000 against credits totaling 40,000. Compound entries with multiple debits and multiple credits are routine — payroll is the classic case, with a full sequence shown in payroll journal entries.
Example 3 — an adjusting entry: accruing unbilled expenses
At month end, $2,400 of legal work has been performed for the business but not yet invoiced:
Mar 31 Legal expense..................... 2,400
Accrued liabilities........... 2,400
(March legal services — invoice pending)
No cash moved, no document arrived — and the entry is still required, because the expense belongs to March. Adjusting entries like this are what separate accrual books from a checkbook; they follow the identical format, and they are what the adjusted trial balance picks up before statements are prepared.
General journal vs special journals
High-volume businesses do not push every transaction through the general journal. Repetitive flows get their own special journals — sales journal, purchases journal, cash receipts journal, cash disbursements journal — each a table pre-shaped for one entry pattern, with totals posted to the general ledger periodically. The general journal then carries only what is left: adjustments, corrections, closing entries, and anything unusual. The format rules on this page apply identically in all of them.
The five questions every entry answers
- When? — the transaction date, not the recording date.
- Which accounts? — precise names from the chart of accounts, never “misc”.
- Which direction? — debit or credit, following normal-balance rules.
- How much? — balanced totals, to the cent.
- Why? — a narration specific enough to survive an audit two years later.
The mistakes that actually happen
Four errors account for most bad entries in small-business books. Reversed direction — debiting revenue on a sale (the giveaway: margins suddenly look impossible). Unbalanced lines — impossible in software, common on paper and in spreadsheets. Vague narrations — “adjustment” and “correction” are the two words auditors trust least; write what happened. Recording date instead of transaction date — which quietly shifts expenses between periods and distorts every comparison. None of these is caught by the books balancing: a perfectly balanced entry can still be perfectly wrong, which is why the narration and account choice deserve the same care as the arithmetic.
Why are credits indented in journal entries?
Pure convention for instant readability — debits flush left, credits indented — inherited from manual bookkeeping and preserved in every textbook and accounting system since.
Can a journal entry have more than two lines?
Yes — compound entries with multiple debits or credits are routine. The only unbreakable rule is that total debits equal total credits.
What is a narration in a journal entry?
The one-line description under the entry explaining what happened — reference numbers, parties, purpose. It has no effect on the numbers but enormous effect on auditability.
What is the difference between the general journal and special journals?
Special journals batch repetitive transactions (sales, purchases, cash in, cash out); the general journal records everything else — adjustments, corrections and closing entries.
Do adjusting entries follow the same format?
Exactly the same: dated lines, debits before indented credits, balanced totals and a narration — the only difference is that no cash or document triggers them.
What makes a journal entry complete?
Date, correctly named accounts on the correct sides, balanced amounts, and a narration sufficient for someone else to reconstruct the transaction later.