Which statement reflects the essence of the double-entry system?

• A. Every transaction records at least two accounts with equal debits and credits.
• B. Only one account is affected per transaction.
• C. Debits always increase assets and credits always increase liabilities.
• D. All transactions are recorded in a single ledger.

Answer: (A)

The essential idea is that every transaction is recorded with two sides that balance each other. In double-entry accounting, each event affects at least two accounts, with debits and credits that have the same total. This keeps the accounting equation in balance and shows exactly how the transaction changes the financial position, giving a complete picture of what happened.

For example, when you buy supplies with cash, you debit the Supplies account (increasing assets) and credit Cash (decreasing assets) for the same amount. The two sides balance, so the record reflects both the use of cash and the acquisition of supplies.

Other statements don’t fit because they imply only one account is affected, or they describe effects that aren’t universally true for every account type (debits don’t always increase assets and credits don’t always increase liabilities; the effect depends on the account). Also, transactions aren’t recorded in a single ledger from the start; they are entered in a journal and then posted to the general and subsidiary ledgers.