KSLU Corner™ New AIBE previous QP

Vouching: meaning, importance, principles, vouchers and routine checking

Principles and Practice of Auditing · Unit III · Topic 7 of 15 · 5 min read

Why vouching is called the essence of auditing, its objectives and principles, what a voucher is and its kinds (primary and collateral, internal and external), the points to check on a voucher and when a voucher is defective, and routine checking with its merits and limits.

On this page
  1. 1. Meaning
  2. 2. Why vouching is the essence of auditing
  3. 3. Objectives of vouching
  4. 4. Principles (points to keep in mind)
  5. 5. Vouchers and their kinds
  6. 6. Routine checking
  7. 7. Test checking
  8. How this is examined
Cases checked to exist. Read the judgment before quoting a holding.

Every case cited here has been checked to exist — the citation resolves and names the right parties. The propositions attributed to each case have not been verified line by line against the judgment. Case names link through to the full judgment: read it before quoting a holding in an examination answer, and never carry a proposition from notes into court on trust.

The examinable core. “Vouching is the essence (or backbone) of auditing” is the single most frequent question in the paper: 2019, 2021, 2022, both 2023 papers, August 2024 and January 2026 Q.9(b). Primary and collateral vouchers and routine checking are the Unit III short notes. The answer to “essence” is this: the auditor’s opinion is only as good as his evidence, and vouching is how he gets evidence that each transaction was genuine, authorised and correctly recorded.

1. Meaning

Vouching is the examination of documentary evidence in support of the entries in the books of account, to establish that the transactions are genuine, authorised, relate to the business, and are correctly recorded. Dicksee called vouching “the essence of auditing”; De Paula described it as the verification of the authority and authenticity of the transactions. It goes beyond arithmetic: routine checking can tell the auditor that an entry has been copied and totalled correctly; only vouching can tell him that the transaction happened at all.

2. Why vouching is the essence of auditing

  1. The books are only as reliable as the transactions behind them. A fictitious payment can be entered, posted and totalled perfectly; only the voucher (or its absence) reveals it.
  2. Frauds are concealed in the entries. Dummy suppliers, fictitious wages, personal expenses charged to the business and omitted receipts are found by vouching.
  3. Errors of principle (capital treated as revenue) are detected when the auditor reads the voucher and sees what was bought.
  4. Authority: vouching tests whether the proper officer approved the payment and whether it is within the powers of the company.
  5. The final accounts depend on it: if the original entries are unvouched, the profit and loss account and balance sheet built on them cannot be called true and fair.
  6. Legal protection: courts treat failure to vouch as negligence. An auditor who accepts entries without evidence cannot claim he exercised reasonable care and skill.

3. Objectives of vouching

4. Principles (points to keep in mind)

  1. Study the internal check system first; the extent of vouching depends on it.
  2. Vouch in date order, and see that vouchers are numbered serially and filed in order.
  3. Check that each voucher is addressed to the client, not to an officer.
  4. Check the date falls within the period under audit.
  5. Check the amount in words and figures and agree it with the entry.
  6. Check that the voucher is authorised by the proper officer.
  7. See that the voucher is stamped “paid” or cancelled so that it cannot be used again.
  8. Check that a revenue stamp is affixed to receipts for cash payments above the limit under the Indian Stamp Act, where required.
  9. Examine the nature of the item: is it a business expense; is it capital or revenue?
  10. Be alert to alterations, erasures and photocopies in place of originals; such vouchers must be enquired into.
  11. Where a voucher is missing, obtain a duplicate or other evidence, and record it in the audit note book.
  12. Remember that the Bharatiya Sakshya Adhiniyam 2023 recognises electronic records; for computerised systems, vouch the system-generated documents and audit trail.

5. Vouchers and their kinds

A voucher is any documentary evidence supporting an entry in the books: an invoice, a receipt, a cash memo, a bank statement, a contract, minutes of a meeting, a wage sheet, a debit or credit note, correspondence.

KindMeaningExamples
PrimaryOriginal written evidence of the transactionSupplier’s invoice, receipt from the payee, cash memo
Collateral (secondary)Subsidiary evidence where the original is not available, or to support itCopy of invoice, duplicate receipt, correspondence, counterfoil of receipt
InternalPrepared within the businessWage sheet, debit note issued, petty cash voucher
ExternalComing from outsiders; more reliableBank statement, supplier’s invoice, confirmation from a debtor

When a voucher is defective (“disqualification of vouchers”): it is not addressed to the client; it is undated or dated outside the period; the amount in words differs from figures; it bears alterations not initialled; it is not signed by the payee or approved by the authorised officer; it is a photocopy without explanation; it relates to the personal affairs of a director or employee; it lacks the required stamp; or it has already been used to support another payment. The auditor must not accept such a voucher without satisfactory explanation.

6. Routine checking

Routine checking is the checking of the arithmetical accuracy of the books: the casting (totalling) of subsidiary books, the posting into ledgers, the carry-forwards, and the balancing of accounts, and agreeing the trial balance. Auditors use special tick marks and coloured ink.

Merits: detects clerical errors of totalling and posting; quick and can be done by junior staff. Limits: it cannot detect errors of principle, omissions, or frauds concealed by proper entries; it proves only that the books are internally consistent.

Routine checkingVouching
Checks totals, postings and balancesChecks documentary evidence of each transaction
Arithmetical accuracyAuthenticity and authority
Can be done by juniors; mechanicalNeeds judgment and experience
Cannot reveal fictitious transactionsReveals fictitious and unauthorised transactions

7. Test checking

In a large business it is not possible to vouch every entry. Where internal control is strong, the auditor vouches a sample selected by statistical or judgmental methods (SA 530 on audit sampling) and extends the sample if errors are found. Cash transactions, unusual items, year-end entries and items of large value should not be left to test checks alone.

How this is examined

“Vouching is the essence of auditing: explain or analyse” (2019, April 2021, 2022, April 2023, October 2023, August 2024; January 2026 Q.9(b) for 10 marks). Write the definition, then the six reasons in section 2, then the principles in short form. “Explain vouching and its importance” (2022, August 2024) and “State the principles of vouching” (June 2025) take sections 2 and 4. Short notes: primary and collateral vouchers (2019, 2023, August 2024, June 2025); types of vouchers (April 2021, April 2023, and “what is a voucher” for 10 marks in November 2021 with disqualification of vouchers as the short note); routine checking (2019, April 2021 with vouching, 2023, August 2024); significance and objectives of vouching (2021, 2022).

Now try the real questions: Principles and Practice of Auditing past question papers.