Financial Accounting Home Page

 

Books of Prime Entry

 

Introduction

 

The purpose of this page is to outline the underlying system of double entry bookkeeping. The page simply takes an overview of a general system and defines and describes each element of that system. The page closes with a few examples of how the system works. This page assumes that you have some knowledge of the double entry bookkeeping system already so there is no detailed explanation of it.

 

Please note that even though many organisations have fully automated and computerised bookkeeping systems now, the contents of this page are still appropriate there, even if the names and descriptions might appear unfamiliar in those settings.

 

The Books of Prime Entry

 

All organisations have what are called books of prime entry or books of original entry: this is a fancy name for the basic records of any bookkeeping system. The books of prime entry include the

 

  • purchases journal
  • purchase returns journal
  • sales journal
  • sales returns journal

 

some people would include the cash book or the cash account as a book of prime entry, too

 

The purpose of the books of prime entry is to make a record of all accounting transactions as they arise. So, when an invoice comes in from a supplier of raw materials, it will be recorded in the purchase journal, once it has been certified as a valid invoice.

 

Similarly, when our organisation generates an invoice for one of our own customers, it too will be entered in a book of prime entry, the sales journal.

 

Question: give an example when each of the returns journals might be used.

 

A journal is simply a form of diary and it lists transactions in chronological order: as they happen, when they happen. A journal entry will normally consist of

 

  • date
  • account to be debited or credited
  • references to ledger account or page number (often called a folio or Fo)
  • narrative: a brief description of the entry

 

Note Jx means Journal page number x

 

Example of a Journal Entry

 

Here is a transaction that we have entered into the Journal, or that we have journalised:

 

we bought a dining table for the canteen on credit for £500 from the A Table Co on 12 October 2002

 

 

Question: enter the following transaction in the Journal

 

we bought a motor vehicle for use in the business on 15 October 2002 on credit for £1,500 from A Shady Car Dealer Ltd

 

You need to know that the motor vehicle account in the ledger is page 3 and A Shady’s account is page 4 in the ledger; and you can write your answer into the journal page above if you like, just print it out to do that.

 

 

The Ledgers

 

Following on from the books of prime entry we have the ledgers of an organisation. The ledgers put the accounting transactions into action: the ledgers record all of the values as debits and credits in the appropriate places in the bookkeeping system.

 

Ledgers comprise accounts in which we record the detail of all accounting transactions. An organisation can have just a few accounts, such as with a small business, or it can have millions of accounts, such as with a mutli national enterprise.

 

Each account records the date, value and references for a transaction or group of transactions and these accounts are divided into two:

 

  • debit side
  • credit side

 

Note: Lx means Ledger account page number x

 

Question: fill in the ledger account entries for the transactions we worked on in the Journals section for the purchases of the dining table and the motor vehicle. Here are the transactions again, to remind you:

 

  • we bought a dining table for the canteen on credit for £500 from the A Table Co on 12 October 2002
  • we bought a motor vehicle for use in the business on 15 October 2002 on credit for £1,500 from A Shady Car Dealer Ltd

 

The ledger etc details for the table were given in the Journal section and you need to know that the motor vehicle account in the ledger is page 3 and A Shady’s account is page 4 in the ledger; and you can write your answer into the journal page above if you like.

 

 

 

 

 

The Cash Book

 

The cash book is a ledger account and it has a debit and a credit side, just like any other ledger account.

 

 

Let’s imagine a cash transaction now to show that the cash book works in just the same way as any other ledger account, we will show the corresponding ledger account entry too.

 

Let’s imagine that on 21 October 2002 we paid A Table Co the £500 that we owe them, in full. The cash book is Ledger account 5 and we will not demonstrate the journal entry for this transaction. although you ought to do it!

 

 

 

Question: show the cash book and corresponding ledger account entry if you are told that on 25 October 2002 we paid £975 to A Shady Car Dealer Ltd in part payment of our debt to them.

 

 

 

Again, it would be good for you to complete the Journal entries too, but they are not shown here: we have assumed we have been using Journal page 1 throughout, however.

 

Overview of the Bookkeeping System

 

Now that we have talked about the various aspects of the bookkeeping system, let’s see how they all work with each other.

 

 

Question: why do you think that the cash book is the central part of a bookkeeping system: explain this idea in your own words?

 

At the bottom of the bookkeeping system diagram there is what we have called the trial balance. We haven’t mentioned the trial balance yet but it’s a vital aspect of the work of a bookkeeper so let’s look at that now.

 

The Trial Balance

 

When we have completed a day or a week or a month of accounting transactions, we should check that the work we have done has been done properly and accurately. That is, we should take a look at all of our workings and check them to try to make sure we haven’t made any mistakes. One step we need to take in order to check our work is to prepare a trial balance.

 

A trial balance (TB) is a summary list of every account to be found in a ledger. What the TB does is to list the closing balance on each account and whether it is a debit or a credit balance. If everything has been recorded accurately the total of all the debits MUST equal the total of all of the credits. You can check that with the work we have done so far on this page to prove this … and here is that proof. Here we have the trial balance based on the work we have done so far: take a careful look at it and make sure you understand where all of the balances come from, check that you agree with the values and make sure you can see why the total debits does, and MUST, equal the total credits.

 

 

Beyond the Trial Balance

 

What we have seen so far is really just the tip of the iceberg. We have discussed the books of prime entry and taken a brief look at some aspects of them. We have even discussed the trial balance, which is the end of accounting period check on the work of the bookkeeper. However, for accountants, the trial balance is just the beginning, yet for the bookkeeper it’s the end!

 

The bookkeeper enters all of the details of all accounting transactions in a period: as we have seen. At the end of the period the bookkeeper draws up a trial balance and makes any corrections that are necessary.

 

The accountant, now, takes the trial balance and from there will take account of any accruals and prepayments, provisions for depreciation and bad debts and so on and draft a set of final accounts, that will include the trading and profit and loss account and the balance sheet.

 

The bookkeeper is a vital link in the accounting chain and this page has skimmed the surface of some of the things that the bookkeeper needs to do and to know to do the work that the accountant relies upon.

 

 

This page was requested by Sritharan Sanmugam, a student from Canada: thanks for asking Sritharan!

 

 

 

© Duncan Williamson

14 October 2002 revised August 2003

© Webmaster Duncan Williamson 2002