23. Cash & Bank Audit — Key Checks

Cash and bank balances represent the most liquid and most vulnerable assets of a business.Because of their susceptibility to misuse, error, and misstatement, they receive disproportionately high audit attention relative to their size.
This article explains how auditors examine cash and bank balances, what key checks are performed, and where businesses commonly face audit issues.

1. Introduction — Why Cash & Bank Are Audit-Critical

Cash and bank balances:
  • Are easily misappropriated
  • Directly affect liquidity perception
  • Often mask timing and cut-off errors
Even small inconsistencies in cash or bank records raise serious audit concerns.
Weak cash and bank controls often trigger suspicion beyond the balance itself.

2. Objective of Cash & Bank Audit

The objectives of cash and bank audit are to:
  • Verify existence of balances
  • Ensure accuracy and completeness
  • Confirm ownership and rights
  • Validate proper cut-off and classification
  • Assess adequacy of controls
Auditors aim to ensure that reported balances are real, available, and correctly recorded.

3. Understanding Cash & Banking Structure

Auditors first understand:
  • Number and type of bank accounts
  • Nature of transactions (operational, loan, escrow)
  • Cash handling procedures
  • Authorisation and payment processes
Complex banking structures increase audit risk.

4. Bank Balance Verification

Auditors verify bank balances through:
  • Bank statements
  • Bank confirmations (where applicable)
  • Bank reconciliation statements
Confirmations from banks are considered highly reliable audit evidence.

5. Bank Reconciliation Testing

Auditors examine:
  • Completeness and accuracy of bank reconciliations
  • Ageing of reconciling items
  • Validity of outstanding cheques and deposits
Old or unexplained reconciling items raise red flags.
Poor bank reconciliations are among the most common audit observations.

6. Cut-Off Testing for Cash & Bank

Auditors test whether:
  • Receipts and payments near year-end are recorded in correct period
  • Cheques issued but not presented are properly reflected
Cut-off errors can distort both cash and expense figures.

7. Cash Balance Verification

For cash balances, auditors may:
  • Perform physical cash counts
  • Rely on management cash verification reports
  • Test cash transactions on sample basis
Large cash balances invite enhanced scrutiny.

8. Controls Over Cash & Bank Transactions

Auditors evaluate:
  • Payment approval controls
  • Segregation between initiation and authorisation
  • System access to banking platforms
  • Cash custody controls
Weak controls significantly increase audit risk.

9. Common Issues Observed in Practice

Frequently observed issues include:
  • Unreconciled bank balances
  • Long-pending reconciling items
  • Unsupported cash balances
  • Excessive cash transactions
  • Weak authorisation controls
These issues delay audits and attract adverse comments.

10. Practical Guidance for Businesses

Businesses should:
  • Prepare monthly bank reconciliations
  • Review and clear old reconciling items
  • Limit cash transactions
  • Implement clear payment approval workflows
  • Periodically verify cash balances
Strong discipline here builds overall audit confidence.

11. CABTA Insight

“Cash and bank audit tests the honesty of systems, not just balances.”

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