Double-entry bookkeeping records both sides of a business transaction. Every journal entry has equal total debits and credits, making it possible to track what the business owns, owes, earns and spends together.
A bank statement alone cannot do that. Money received might be revenue, a loan or an owner's investment. Money paid might be an expense, equipment or repayment of a liability. The account classification matters as much as the cash movement.
Start With the Accounting Equation
Assets = Liabilities + Equity. Assets include cash and amounts customers owe. Liabilities include supplier balances and loans. Equity represents the owners' interest after liabilities. Revenue and expenses affect profit, which in turn affects equity.
For background on financial statement concepts, see the IFRS Foundation's Conceptual Framework. This introduction explains mechanics; it does not determine the reporting standard applicable to your company.
What Debits and Credits Mean
Debit and credit describe the two sides of an entry. They do not simply mean money out and money in. As a basic rule, asset and expense increases are debits; liability, equity and revenue increases are credits. Decreases use the opposite side. Contra accounts and more complex transactions require additional care.
An account's name should describe its purpose. Separate customer receivables, supplier payables, loan balances and owner balances rather than posting everything to a generic income or expense account.
A Worked Example: From Investment to Collection
The following fictional entries exclude VAT, payroll and other adjustments to keep the mechanics visible.
| Transaction | Debit | Credit |
|---|---|---|
| Owner invests 10,000 | Bank 10,000 | Share capital 10,000 |
| Buy equipment for cash, 2,000 | Equipment 2,000 | Bank 2,000 |
| Earn and invoice a service, 3,000 | Receivables 3,000 | Service revenue 3,000 |
| Customer pays that invoice | Bank 3,000 | Receivables 3,000 |
After these entries, bank is AED 11,000 and equipment is AED 2,000. Receivables are zero. Total assets of AED 13,000 equal capital of AED 10,000 plus profit of AED 3,000, before depreciation or any other expenses. Collecting the invoice did not create revenue a second time.
Check More Than a Balanced Trial Balance
A trial balance lists account balances and tests whether total debits equal total credits. It can reveal an unbalanced posting, but it cannot prove every transaction is correct. A duplicate invoice, omitted transaction or expense posted to the wrong account can still leave it balanced.
- Reconcile each bank and payment account to its statement.
- Match receivables and payables to the detailed customer and supplier lists.
- Review unusual negative balances and unexplained suspense entries.
- Keep source documents attached to transactions and adjustments.
- Check that loans and owner contributions are not recorded as sales.
The monthly close checklist turns these checks into a repeatable process. Accounting software can enforce balanced entries, but it still needs correct inputs and review. See our cloud accounting support for setup and reporting assistance.
Frequently Asked Questions
Does Debit Always Mean an Expense?
No. A debit can increase an asset, reduce a liability or represent other account movements.
Is a Balanced Trial Balance Proof of Accurate Books?
No. Balanced entries can still be incomplete, duplicated or misclassified.
Do I Need to Enter Every Journal Manually?
No. Accounting software commonly creates entries from invoices and payments. Review the resulting accounts and avoid entering the same transaction twice.
Reviewed October 2, 2026. General educational information, not personalised accounting, tax or legal advice. Check current official guidance for your circumstances. Profitrack is an independent private consultancy, not a government authority.