Study Guides/Commerce/Subsidiary Books โ€” Meaning and Types
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Subsidiary Books โ€” Meaning, Types and Advantages

Subsidiary books are special books of original entry in which transactions of a similar nature are recorded together, instead of recording every transaction in one journal. In a large business there are too many transactions to record in a single journal, so the journal is divided into several smaller books, each meant for one kind of transaction. These smaller books are called subsidiary books or special journals. For example, all credit purchases are recorded in the purchases book and all credit sales in the sales book.

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What are subsidiary books?

Answer

Subsidiary books are special books of original entry in which transactions of a similar nature are recorded together. Instead of recording every transaction in one journal, a business divides the journal into several smaller books, each for one type of transaction โ€” for example, the purchases book for credit purchases and the sales book for credit sales. They are also called special journals.

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Key Facts

Subsidiary books are special books in which transactions of a similar nature are recorded together.

They are also called books of original entry or special journals.

The journal is divided into subsidiary books because a single journal is impractical for large businesses.

Main types: purchases book, sales book, purchases return book, sales return book and cash book.

Bills receivable book and bills payable book record bills of exchange.

The journal proper records transactions that do not fit other subsidiary books.

Advantages include division of work, specialisation, easy reference and better control.

Meaning of Subsidiary Books

Subsidiary books are the books of prime (original) entry in which transactions are first recorded before being posted to the ledger. Instead of using one journal for all transactions, a business divides it into several special books, each for a particular type of transaction.

This division is necessary because: โ€ข A large business has a huge number of transactions. โ€ข Recording all of them in one journal would be difficult and time-consuming. โ€ข Dividing work among several books allows different clerks to work at the same time.

Subsidiary books are also called 'books of original entry' or 'special journals'.

Types of Subsidiary Books

The main subsidiary books are:

  1. Purchases Book (Purchase Day Book): records all credit purchases of goods.
  2. Sales Book (Sales Day Book): records all credit sales of goods.
  3. Purchases Return Book (Return Outward Book): records goods returned to suppliers.
  4. Sales Return Book (Return Inward Book): records goods returned by customers.
  5. Cash Book: records all cash and bank receipts and payments.
  6. Bills Receivable Book: records bills of exchange received from debtors.
  7. Bills Payable Book: records bills of exchange accepted in favour of creditors.
  8. Journal Proper (General Journal): records transactions that do not fit into any of the above books (such as opening entries, adjustments and credit purchase of assets).

Advantages of Subsidiary Books

  1. Division of work: Different books can be maintained by different clerks at the same time, saving time.
  2. Specialisation: A clerk handling one book becomes expert and efficient at it.
  3. Easy reference: Transactions of one type are found in one place.
  4. Saves labour and time: Similar transactions are recorded together, avoiding repetition.
  5. Easy checking and control: It is easier to detect errors and fix responsibility.
  6. Helpful information: Each book provides ready information, such as total credit sales from the sales book.

Because of these advantages, almost all businesses use subsidiary books instead of a single journal.

Questions and Answers

What are subsidiary books?+

Subsidiary books are special books of original entry in which transactions of a similar nature are recorded together. Instead of recording every transaction in one journal, a business divides the journal into several smaller books, each for one type of transaction โ€” for example, the purchases book for credit purchases and the sales book for credit sales. They are also called special journals.

What are the main types of subsidiary books?+

The main subsidiary books are: purchases book (credit purchases), sales book (credit sales), purchases return book (return outward), sales return book (return inward), cash book (cash and bank transactions), bills receivable book, bills payable book, and the journal proper for transactions that do not fit the other books.

Why are subsidiary books used instead of one journal?+

Subsidiary books are used because a large business has too many transactions to record in a single journal. Dividing the work into special books lets different clerks work at the same time, makes each clerk specialised and efficient, saves time and labour, keeps similar transactions in one place, and makes checking and control easier.

What is recorded in the journal proper?+

The journal proper (or general journal) records transactions that cannot be entered in any of the other subsidiary books. These include opening entries, closing entries, adjustment entries, rectification of errors, and the credit purchase or sale of assets (not goods).

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