Double-entry bookkeeping.
In plain English
Double-entry bookkeeping records both sides of every transaction so that total debits always equal total credits and the accounting equation stays in balance. Assets equal liabilities plus equity, and each entry keeps that identity true. Buying equipment with cash lowers one asset and raises another. Borrowing raises an asset and a liability at the same time. The built-in check is why errors surface at all: if the books do not balance, something was entered wrong, which is what the trial balance tests.
01Why it matters
Every accounting report you will ever read, from a small business profit statement to a public filing, is produced by this one mechanism, and knowing it makes those reports far less mysterious.
02The math, step by step
Say a business buys a 5,000 dollar computer on credit. It debits equipment 5,000 dollars and credits accounts payable 5,000 dollars. Assets rise 5,000 dollars, liabilities rise 5,000 dollars, and equity does not move. Paying the bill later debits payables and credits cash, both by 5,000 dollars.
Illustrative example. The amounts here are hypothetical, chosen to show how the math works, not real quoted rates or figures.
03What this is NOT
It is one transaction captured from two angles, not a duplicate. Debits and credits are directions in the ledger, not good and bad. A debit raises an asset and lowers a liability, which is why a single purchase touches two accounts and still adds up.
04Receipts
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Plain-English answers from our glossary. Receipts included. Never advice.
Educational tool. Answers come only from ClearMoneySchool's published glossary and are not advice. Why we never give advice