Cash Book & Subsidiary Books 2026: Types, Format & BRS (JAIIB AFM Notes)
If there is one topic in the JAIIB AFM syllabus that quietly decides your marks. It is cash book and subsidiary books. These financial books are the foundation of every accounting system. And the examiner loves testing them - from the format of a triple column cash book to the difference between a debit note. A credit note.
This 2026 guide is your single. Complete resource on cash book. Subsidiary books for the JAIIB Accounting and Financial Management (AFM) paper.
We cover every type of cash book. All the subsidiary books. Bank reconciliation.
The trial balance and the final financial statements - in plain English. With clean formats and exam-ready tips. Bookmark this page and revise from it.
Key Takeaways
- The cash book records all cash transactions. Doubles up as both a journal. A ledger - so no separate cash account is opened.
- A cash book always shows a debit balance (cash in hand). Forms part of current assets.
- Subsidiary books are specialised journals - purchase book. Sale book. Return books. Bills books - that split the workload and keep records manageable.
- Purchase. Sale return books use a debit note and credit note respectively. Mixing these up is a classic exam mistake.
- A bank reconciliation statement (BRS) explains the difference between your cash book balance. The bank passbook balance on a given date.
What Are Financial Books? Cash Book and Subsidiary Books Explained
In accounting. Every transaction is first recorded in a book of original entry before it reaches the ledger. The cash book.
Subsidiary books are exactly these books of original entry. Together they capture cash dealings and high-volume credit transactions in an organised. Scientific way.
Instead of routing thousands of similar entries through one bulky journal. A business splits them into dedicated books. Cash goes into the cash book.
Credit purchases go into the purchase book. Credit sales go into the sale book. And so on.
This division is the heart of the topic -. A favourite area for JAIIB AFM questions.
Why This Topic Matters for JAIIB AFM
AFM is a scoring paper for students who master the basics, and these financial books are the basics. Get the formats, rules and notes below firmly in your memory, back them with mock tests, and you protect a reliable cluster of marks in the exam.
Cash Book: Meaning, Types and Golden Rule
The cash book is a record of all transactions related to cash. Think of expenses paid in cash. Revenue collected in cash.
Payments made to creditors. Payments received from debtors. Cash deposited in a bank or cash withdrawn for office use - every one of these lands in the cash book.
A crucial point that students often miss: the cash book behaves like a ledger account. There is no need to open a separate cash account in the ledger. And the balance of the cash book is posted directly to the trial balance.
Golden Rule to Remember
A cash account is a real account. So the rule is: what comes in - debit. What goes out - credit.
All cash received goes on the debit side. All payments and expenses go on the credit side. As a result.
The cash book always shows a debit balance (cash in hand). Which is part of current assets.
The Four Types of Cash Book
There are four main types of cash book you must know for JAIIB AFM. The table below summarises them at a glance before we break each one down.
| Type of Cash Book | Columns on Each Side | Used For |
|---|---|---|
| Single Column | Cash only | Recording pure cash receipts and payments |
| Double Column | Cash + Discount | Recording cash plus discount allowed/received |
| Triple Column | Cash + Discount + Bank | Recording cash, discount and bank transactions |
| Petty Cash Book | Small expense heads | Recording small, routine day-to-day expenses |
1. Single Column Cash Book
The single column cash book has just one amount column on each side. Records only cash transactions. Since the cash account is a real account.
What comes in is debited and what goes out is credited. All received cash is posted on the debit side. All payments and expenses on the credit side.
| Date | Particulars (Dr.) | L.F. | Amount | Date | Particulars (Cr.) | L.F. | Amount |
|---|---|---|---|---|---|---|---|
| Cash received | XX | Payments / expenses | XX |
2. Double Column Cash Book
The double column cash book adds a discount column on each side. The discount column on the debit side represents the discount allowed to debtors of the company. The discount column on the credit side represents the discount received from suppliers or creditors. Making payments.
At the period end. The total of the discount column on the debit side is posted to the ledger account "Discount Allowed to Customers" as "To Total As Per Cash Book". Similarly. The credit side discount total is posted to the "Discount Received" account as "By Total of Cash Book".
3. Triple Column Cash Book
When one more column - the bank column - is added on both sides of the double column cash book. It becomes a triple column cash book. All banking transactions are routed through this book. So there is no need to open a separate bank account in the ledger. It records cash, discount and bank together.
4. Petty Cash Book and the Imprest System
Every organisation faces many small. Routine payments - postage, cartage, stationery and the like. To handle these efficiently. Cash is kept with an employee (the petty cashier) who makes these small payments. Records them in the petty cash book.
Most firms use the imprest system, where a fixed float is maintained. Suppose the main cashier gives Rs 5,000 to Mr A for day-to-day expenses. If Mr A spends Rs 4,200 in a period.
The main cashier reimburses exactly Rs 4,200, restoring the balance back to Rs 5,000. This saves the chief cashier's time and provides much better control. The most commonly used form is the analytical or columnar petty cash book.
Which splits payments under expense heads such as stationery. Cartage, loading and postage.
Subsidiary Books: The Specialised Journals
For high-volume credit transactions. Businesses use subsidiary books - specialised journals dedicated to one type of transaction. In a large organisation it is simply not practical to push every entry through the main journal. As it makes the records bulky and unmanageable.
There are six subsidiary books you must know for JAIIB AFM. The table below maps each book to what it records. The document it relies on.
| Subsidiary Book | What It Records | Key Document |
|---|---|---|
| Purchase Book | Credit purchases of goods | Inward Invoice |
| Sale Book | Credit sales of goods | Outward Invoice |
| Purchase Return Book | Goods returned to suppliers | Debit Note |
| Sale Return Book | Goods returned by customers | Credit Note |
| Bills Receivable Book | Bills accepted by debtors | Bill of Exchange |
| Bills Payable Book | Bills accepted to suppliers | Bill of Exchange |
Purchase Book and Sale Book
The purchase book records only the credit purchases of goods. Note carefully: a purchase book is not a purchase ledger. The sale book has all the same features.
Except that it records all the credit sales. Cash purchases. Cash sales never enter these books - they flow through the cash book instead.
Purchase Return Book and Sale Return Book
Sometimes goods must be returned. When you return goods to a supplier - usually. They are defective or of poor quality - the entry goes in the purchase return book.
A debit note is issued. When a customer returns goods to you. They fail the promised quality standard.
The entry goes in the sale return book. A credit note is issued to that customer.
Bills Receivable Book and Bills Payable Book
Bills are raised by creditors on debtors. The debtor accepts the bill and returns it. A bill accepted by a debtor is called a "Bill Receivable" in the books of the creditor.
And a "Bill Payable" in the books of the debtor. These are recorded in the bills receivable book. The bills payable book respectively.
Capturing the term, due date and amount.
Subsidiary Book vs Ledger: Don't Confuse Them
A frequent JAIIB AFM trap is mixing up a subsidiary book with a ledger. There is a clear difference. A purchase book records only credit purchases.
A purchase ledger is the comprehensive account of all purchases. To which the daily balance of the purchase book is transferred. The same logic applies to the sale book and the sale ledger.
Why Businesses Maintain Subsidiary Books
The advantages of subsidiary books are exactly the kind of crisp points examiners ask for:
- Facilitation of journal entries: it is not practical to post every transaction through journal entries. Especially in big organisations, as it makes records bulky.
- A scientific. Specialised approach: they give a more practical. Controlled and easy way to work.
- Division of work: work can be split across departments - sales. Purchases. Cash. Bank - making each department accountable. Making it easy to audit and detect errors.
- Accuracy and compliance: with modern computer technology and competent professionals. Accuracy. Quick results. Compliance with the law have become decisive in a competitive market.
Bank Reconciliation Statement (BRS)
On a particular date. Reconciling your own bank balance with the balance shown in the bank passbook is called bank reconciliation. A bank reconciliation statement (BRS) sets out three things: the balance as per your cash book or bank book. The balance as per the passbook. And the reasons for the difference between the two.
This statement can be prepared at any time. Depending on the firm's convenience and the volume of bank transactions. In today's world.
Where most banking transactions are electronic. Customers receive alerts for every transaction. The time needed to reconcile the bank has reduced sharply.
Common Reasons for the Difference
- Add: Cheques issued to parties. Not yet presented for payment in the bank.
- Less: Cheques deposited in the bank but not yet cleared.
- Less: Bank charges debited by the bank. Not yet entered in our books.
- Less: Bank interest charged by the bank. Not yet entered in our books.
- Add: Payments directly deposited by a party without intimation to us.
| Particulars | Debit Balance as per Bank Book | Credit Balance (Overdraft) |
|---|---|---|
| Balance as per Bank Book | 50,000 | -50,000 |
| Add: Cheques issued but not presented | 3,25,000 | 3,25,000 |
| Less: Cheques deposited but not cleared | -50,000 | -50,000 |
| Less: Bank charges not entered in our books | -1,200 | -1,200 |
| Less: Bank interest not entered in our books | -10,000 | -10,000 |
| Add: Payment directly deposited by party | 1,75,000 | 1,75,000 |
| Balance as per Pass Book / Statement | 4,88,000 | 3,88,000 |
Trial Balance: Bringing It All Together
The trial balance is a summary of all the debit. Credit balances of ledger accounts. The total of the debit side.
The credit side of the trial balance must match. It is prepared on the last day of the accounting cycle. Gives a comprehensive list of balances.
This list is the springboard for the financial reports. From the trial balance. The trading account is drawn to find the gross profit.
The profit. Loss account to find the net profit or loss for the year. And finally the balance sheet to conclude the financial position of the firm.
Financial Statements: Trading, P&L and Balance Sheet
Financial statements are prepared to ascertain the profit or loss of the business. To know its financial position. The trading. Profit and loss account ascertains the net profit for an accounting period. While the balance sheet reflects the position of the business on a given date.
Each of these has an almost fixed format. You simply place the balances of the ledger accounts - taken from the trial balance - into the prescribed format. And the desired results emerge in the form of financial figures.
Owner's Equity
The owner or sole proprietor invests in the business. Earns profit, and withdraws money for personal use (called drawings). The equity relationship is:
Investment (Capital) ± Profit or Loss - Drawings = Owner's Equity
Current Assets and Current Liabilities
Current assets are assets convertible into cash within the next accounting year. They include cash in hand. Cash at bank.
Fixed deposit receipts (FDRs). Inventory, debtors, bills receivable, short-term investments, and staff loans and advances. Prepaid expenses are also a part of current assets - note that they are not convertible into cash.
But they save cash for the next accounting year.
Current liabilities are immediate liabilities to be paid within one year from the date of the balance sheet. They primarily include sundry creditors. Expenses payable, bills payable, short-term loans and advances from customers.
How to Study Cash Book and Subsidiary Books for JAIIB
Knowing the theory is one thing; scoring on it is another. Here is a practical. Repeatable plan that works even for busy, full-time bankers.
- Lock the golden rule first. "What comes in - debit. What goes out - credit." This one line unlocks every cash book question.
- Memorise the four cash book types by their columns: single (cash). Double (cash + discount), triple (cash + discount + bank), petty (small expenses).
- Master the document map. Purchase return - debit note; sale return - credit note. Drill this until it is automatic.
- Practise one BRS daily. Reconciliation is pure logic once you know what to add. What to subtract.
- Trace the flow: subsidiary book - ledger - trial balance - financial statements. Understanding the chain makes recall effortless.
- Test immediately. Attempt topic-wise mock tests after each session to turn reading into recall, and read related free guides to reinforce concepts.
Consistency beats intensity. Thirty focused minutes daily on AFM fundamentals will out-perform an occasional weekend cram every time.
Common Mistakes to Avoid
Most marks on this topic are lost to avoidable errors. Sidestep these traps.
- Confusing debit note and credit note. Purchase return uses a debit note; sale return uses a credit note.
- Treating the cash book as needing a separate cash account. It already acts as a ledger - its balance goes straight to the trial balance.
- Mixing up subsidiary book and ledger. The book records transactions of one type. The ledger is the comprehensive account.
- Recording cash purchases in the purchase book. Subsidiary books record only credit transactions - cash deals go in the cash book.
- Forgetting the BRS direction. Whether you add or subtract an item flips depending on whether you start from the cash book or the passbook.
- Ignoring mock tests. Without timed practice. Theory alone rarely converts into exam-day marks -. Always confirm any current rule on the latest official IIBF notification.
Cash Book and Subsidiary Books FAQ
What is the difference between a cash book and a subsidiary book?
A cash book records all cash (and. In its triple column form. Bank) transactions and acts as both a journal and a ledger.
Subsidiary books are specialised journals - such as the purchase book. Sale book. Return books - that record specific types of high-volume credit transactions before they are posted to the ledger.
Why does a cash book always show a debit balance?
A cash account is a real account where what comes in is debited. What goes out is credited. Since you can never pay out more cash than you have.
Receipts always equal or exceed payments. So the cash book shows a debit balance representing cash in hand. Which is part of current assets.
What is the difference between a debit note and a credit note?
A debit note is issued when goods are returned to a supplier. Is recorded in the purchase return book. A credit note is issued when a customer returns goods to you.
Is recorded in the sale return book. Remembering "purchase return - debit note. Sale return - credit note" prevents a common exam error.
What is a bank reconciliation statement (BRS)?
A bank reconciliation statement reconciles the balance shown in your cash book or bank book with the balance shown in the bank passbook on a particular date. It lists both balances and explains the reasons for any difference. Such as cheques issued but not presented. Or bank charges not yet recorded in your books.
Is the cash book and subsidiary books topic important for JAIIB AFM?
Yes. These financial books are a core part of the Accounting. Financial Management (AFM) paper.
Their formats. Rules and related concepts - the trial balance. BRS and financial statements - appear frequently.
So a clear grasp of this topic. Reinforced with mock tests, protects a reliable block of marks. Always confirm any current syllabus detail on the latest official IIBF notification.
Final Word: Master the Books, Score with Confidence
The cash book. Subsidiary books are the backbone of accounting -. A goldmine of easy marks in the JAIIB AFM exam.
You now have everything you need: the meaning. Types of cash book. The petty cash imprest system.
All six subsidiary books with their documents. The bank reconciliation statement, the trial balance and the final financial statements.
Start today. Lock the golden rule. Fill the cash book and subsidiary book tables from memory.
And attempt your first mock. Repeat that loop with discipline. Keep verifying specifics on the latest official IIBF notification.
And you will walk into the exam hall calm. Prepared and ready to turn these financial books into easy marks. Your JAIIB success is closer than you think.
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