There is a difference between a purchase book and a purchase ledger. A purchase book records only credit purchases and a purchase ledger records all the cash purchases in chronical order. The daily balance of purchase book is transferred to purchase ledger. Therefore, purchase ledger is a comprehensive account of all purchases.
The same rule applies to sale book and sale ledgers.
● It is quite clear that maintaining a subsidiary book is facilitation to journal entries, practically it is not possible to post each and every transaction through journal entries, especially in big organizations because it makes the records bulky and unpractical.
● Maintenance of subsidiary books gives us more scientific, practical, specialized, controlled, and easy approach to work.
● It provides us facility to divide the work among different departments like sale department, purchase department, cash department, bank department, etc. It makes each department more accountable and provides an easy way to audit and detect errors.
● In modern days, the latest computer technology has set its base all over the world. More and more competent accounts professionals are offering their services. Accuracy, quick results, and compliance of law are the key factors of any organization. No one can ignore these factors in a competitive market.