## SA 510 – Initial Audit Engagements: Opening Balances

### What is an Initial Audit Engagement?

An engagement where either:

The FS for the prior period were not audited, OR
The FS for the prior period were audited by a predecessor auditor

> Opening balances include not just financial statement amounts but also matters requiring disclosure at the beginning of the period — such as contingencies and commitments.

### Objective of the Auditor

To obtain sufficient and appropriate audit evidence about whether:

1. Opening balances contain misstatements that materially affect the current period's FS

2. Appropriate accounting policies reflected in opening balances have been consistently applied in the current period — or any changes are properly accounted for and disclosed per AFRF

### Audit Procedures for Opening Balances

Step 1: Read the most recent FS and the predecessor auditor's report (if any) for information on opening balances, including disclosures.

Step 2: Obtain sufficient appropriate audit evidence by:

Confirming prior period's closing balances are correctly brought forward to the current period
Checking opening balances reflect appropriate accounting policies
Performing one or more of:
Perusing copies of prior year audited FS (where prior year was audited)
Evaluating whether current period audit procedures provide evidence relevant to opening balances
Performing specific audit procedures targeted at opening balance evidence

### Case 1: Misstatements Found in Opening Balances

Situation	Auditor's Action
AE shows opening balances contain material misstatements	Perform additional audit procedures to determine effect on current period FS
Auditor concludes misstatements exist in current period FS	Communicate with appropriate levels of management and TCWG

### Case 2: Accounting Policy Inconsistencies

If the auditor concludes that:

Current period accounting policies are not consistently applied in relation to opening balances per AFRF, OR
A change in accounting policies is not properly accounted for or disclosed per AFRF

→ The auditor shall express a qualified opinion or adverse opinion as appropriate per SA 705.

Worked example

### Example 1

Case 1 – Misstatement in Opening Balance: An auditor takes on a new client (ABC Ltd) whose prior year FS were audited by another firm. During the current year audit, the auditor discovers the prior year closing inventory of ₹50 lakh was significantly overstated. This means the opening inventory of the current year is also overstated. The auditor must perform additional procedures to determine the effect on current year FS and communicate findings to management and TCWG.

### Example 2

Case 2 – Inconsistent Accounting Policy: In the prior year, XYZ Ltd used the FIFO method for inventory valuation. In the current year (first year of a new auditor), the company switched to the weighted average method without proper disclosure in the FS. The auditor concludes the change is not adequately presented per AFRF and issues a qualified opinion under SA 705.

### Example 3

Unaudited Prior Year: A startup's Year 1 FS were unaudited. In Year 2, a statutory auditor is appointed for the first time. The auditor cannot rely on prior year audit reports, so must perform specific procedures — e.g., physically verifying fixed assets, confirming opening receivables/payables with third parties — to obtain sufficient evidence about opening balances.

⚠️ Common exam mistakes

Treating initial audit engagement as only when a company is incorporated for the first time — it also applies when a new auditor takes over from a predecessor
Forgetting that opening balances include contingencies and commitments, not just balance sheet line items
Confusing Case 1 (misstatements found → additional procedures + communication to management/TCWG) with Case 2 (inconsistent policies → qualified or adverse opinion)
Writing 'disclaimer of opinion' for Case 2 — SA 510 specifies only qualified or adverse opinion in this situation, not a disclaimer
Overlooking the requirement to verify that prior period closing balances have been correctly brought forward — students focus only on whether opening balances are correct in isolation

Reference: Paragraphs 3–14 (Objectives, definitions, and procedures) — SA 510 – Initial Audit Engagements – Opening Balances

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