Class 11 Accountancy Notes
~5 min readThis is the first computational chapter, and everything the rest of the syllabus depends on. You take a document, find its effect on the accounting equation, convert that effect into a debit and a credit, and write the entry in the journal. Master the three rules of debit and credit here and every later chapter becomes routine.
Debit the person who receives value and credit the person who gives value. This produces the two memorable rules: debit the receiver of value, and credit the giver of value. Because a personal account's debit balance is what the person owes the business, the rule is simply the mirror image of the reality.
A business transaction is any event that changes the assets, liabilities, capital, revenue or expenses of the business. Cash is not necessary: a credit purchase of machinery is a transaction even though no cash moves, and the only test is whether the accounting equation is affected.The source document is the original evidence of the transaction — a bill, a receipt, a cash memo, a bank statement, a debit note, a credit note or a payslip. It is the authority for the entry, and the accountant must see it before recording anything.
Vouchers are not source documents
The equation of a business is the statement of its financial position at every moment. The two sides are always equal because every transaction has two aspects: it affects the assets and the capital on one side, and the accounting equation cannot be disturbed, only rearranged.
How to answer an analysis question in three columns
The debit and credit rules are the two aspects of every transaction restated in a fixed form. They are not arbitrary: the debit side of every account is the left-hand side of that account, and the debit of a real account is always an asset.
The single most common error in the chapter
The journal is the book of original entry, where every transaction is recorded chronologically, once, in debit and credit form, with a narration explaining the purpose. Recording only the essential details of a transaction rather than every part of it is called narrating, and a journal entry is not complete without it.
Two rules for the narration
Nearly every journal entry in this chapter is one of six patterns. Learn them as pairs of accounts and the analysis becomes routine, because the only work left is finding the amount and naming the narration.
Goods withdrawn by the owner
The ledger is the principal book of account, containing all accounts in alphabetical order, with columns for particulars, folio, amount and a running balance. The journal gives the full story of each transaction; the ledger collects all entries for one account together, which is what makes a balance possible.
Ruling off an account correctly
Quick Revision
Memorise these equations — direct application numericals and derivations in CBSE & JEE frequently hinge on these.
Accounting equation
Holds before and after every transaction.
Expanded equation
Used for the analysis of each transaction.
Debit balance of an account
Assets, debtors, drawings and expenses.
Credit balance of an account
Liabilities, creditors, capital and incomes.
Real account rule
Assets.
Personal account rule
Persons, firms and banks.
Nominal account rule
The reverse of the real account rule.
Exam Strategy
High-yield question patterns observed across CBSE boards, JEE Main & Advanced, and NEET.
FAQ
A source document is the external evidence of a transaction, such as a bill, a receipt or a bank advice, and it is issued by the other party or by the bank. A voucher is the internal document prepared by the accountant from that source document, containing full particulars of the transaction and the ledger folios, and it is the voucher that authorises the entry in the books. A voucher is prepared for every source document, and it is the voucher, not the source document, that forms part of the accounting record.
Because every transaction, whatever its form, has two aspects and the equation shows both of them. The equation cannot be disturbed by a transaction, only rearranged, which is why the total of debits always equals the total of credits and why a trial balance agrees. It also classifies the effect of each transaction into one of a small number of types, and the analysis question in this chapter is simply a request to name which type applies.
First identify the type of account. For a real account, debit what comes in and credit what goes out. For a personal account, debit the receiver of value and credit the giver of value. For a nominal account, debit all expenses and losses and credit all incomes and gains. If you are unsure, remember that the debit side is always the left-hand side of a T-account, and a debit balance in the ledger means the account still has a value in the business, which is true of assets, debtors, drawings and expenses.
The journal is a chronological record in which every transaction appears once, with its debit, credit and narration. The ledger is a classified record in which all entries relating to one account are brought together, so a balance can be struck. Posting transfers the journal entry into the relevant ledger accounts, and the folio columns in both books allow the two to be traced in either direction.
For an account with a debit balance, the difference between the totals of the two sides is entered as balance c/d on the credit side after the account is ruled off, so that both sides are equal. The same figure is then entered as balance b/d on the debit side at the top of the next page. For a credit balance the two are reversed. The point of the two entries is that the account totals agree while the balance continues.
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