Dictionary / Double-Entry Bookkeeping

What does Double-Entry Bookkeeping mean in accounting?

Quick definition

General

Double-entry bookkeeping means every transaction hits at least two accounts, and the debits equal the credits.

Read more below

You buy $200 of supplies on a credit card: supplies expense increases and the card liability increases. The books stay in balance. QuickBooks Online and Xero do this automatically. You still choose the accounts.

Financial report sheets and a presentation folder illustrating financial statements

Examples

Collecting an invoice (two accounts, no new sale)

A customer pays a $1,200 invoice by check and you deposit it. Debit checking $1,200 and credit accounts receivable $1,200. Income was already recorded when you issued the invoice. Coding the deposit to sales would count the same job twice.

An owner draw that is not an expense

You take a $3,000 owner draw from checking. Debit owner draws (equity) $3,000 and credit checking $3,000. If you debit office expense instead, profit is understated and equity is wrong. Same cash out, different accounts.

Why it matters

Double-entry is why a balance sheet can balance and why you can see both the expense and the unpaid card. If you only track cash out, you hide bills, loans, and invoices. For the owner overview, see bookkeeping basics.

Further reading

Compare this term with reference material from other accounting and finance websites.

Keep learning

Start with the bookkeeping basics, then compare software when you are ready to pick a tool.

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Frequently asked questions

What is an example of double-entry bookkeeping?

Pay a $200 vendor bill from checking: debit accounts payable $200, credit checking $200. The expense was recorded when you entered the bill. The payment only clears the liability and the bank.

What are common double-entry bookkeeping mistakes?

Coding a bill payment as an expense (double-counting), depositing invoice payments to income instead of AR, and treating owner draws as expenses. All three unbalance the story even when cash still 'matches' in a loose sense.

What are the four rules of double-entry?

The useful rules for a small shop: every transaction has two sides, debits equal credits, assets and expenses increase with debits, and liabilities, equity, and income increase with credits. You do not need to memorize T-accounts if the software stays in balance and you pick the right accounts.

Do I need double-entry if I use QuickBooks or Xero?

You are already using it. Those products post two (or more) sides on every invoice, bill, and bank match. Your job is the accounts, not the arithmetic.