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Debit and credit


In double entry bookkeeping, debits and credits (abbreviated Dr and Cr, respectively) are entries made in account ledgers to record changes in value resulting from business transactions. Generally speaking, the source account for the transaction is credited (that is, an entry is made on the right side of the account's ledger) and the destination account is debited (that is, an entry is made on the left side). Total debits must equal total credits for each transaction; individual transactions may require multiple debit and credit entries to record.

The difference between the total debits and total credits in a single account is the account's balance. If debits exceed credits, the account has a debit balance; if credits exceed debits, the account has a credit balance. For the company as a whole, the totals of debit balances and credit balances must be equal as shown in the trial balance report, otherwise an error has occurred.

Accountants use the trial balance to prepare financial statements.

The first known recorded use of the terms is Venetian Luca Pacioli's 1494 work, Summa de Arithmetica, Geometria, Proportioni et Proportionalita (translated: Everything That Is Known About Arithmetic, Geometry, Proportions and Proportionality). Pacioli devoted one section of his book to documenting and describing the double-entry bookkeeping system in use during the Renaissance by Venetian merchants, traders and bankers. This system is still the fundamental system in use by modern bookkeepers.

One theory is that in its original Latin, Pacioli's Summa used the Latin words (to owe) and (to entrust) to describe the two sides of a closed accounting transaction. Assets were owed to the owner and the owners' equity was entrusted to the company. At the time negative numbers were not in use. When his work was translated, the Latin words debere and credere became the English debit and credit. Under this theory, the abbreviations Dr (for debit) and Cr (for credit) derive from the original Latin. However, Sherman casts doubt on this idea because Pacioli uses Per (Latin for "from") for the debtor and A (Latin for "to") for the creditor in the Journal entries. Sherman goes on to say that the earliest text he found that actually uses "Dr." as an abbreviation in this context was an English text, the third edition (1633) of Ralph Handson's book Analysis or Resolution of Merchant Accompts and that Handson uses Dr. as an abbreviation for the English word "debtor." (Sherman could not locate a first edition, but speculates that it too used Dr. for debtor.) The words actually used by Pacioli for the left and right sides of the Ledger are "in dare" and "in havere" (give and receive). Geijsbeek the translator suggests in the preface: 'if we today would abolish the use of the words debit and credit in the ledger and substitute the ancient terms of "shall give" and "shall have" or "shall receive," the personification of accounts in the proper way would not be difficult and, with it, bookkeeping would become more intelligent to the proprietor, the layman and the student.'


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