An external audit examines a company’s financial records and internal controls to confirm the financial statements are free of material error and fairly presented, giving investors, lenders, and regulators an independent basis for confidence in the numbers. Because the auditor has no affiliation with the company being examined, the process is structured into defined stages designed to build an evidence-based opinion methodically, not to simply check a box once a year.
This guide walks through all six stages of the external audit process, how long a typical audit takes, and the most common reasons audits run longer than expected.
The Six Stages of the External Audit Process
- Preparing an audit plan
- Understanding the client company
- Assessing the risk of misstatement
- Performing control tests
- Completing the audit
- Issuing the audit report
In short: planning, understanding, assessing, testing, finalizing, and reporting, each stage building the evidence base the next stage relies on.
Stage 1: Preparing an Audit Plan
The auditor reviews available information and plans how the audit will be conducted, sometimes through a planning workshop to identify likely problem areas in advance. This stage identifies the key areas of inquiry and concern, and the specific information the auditor intends to examine to address them, before any fieldwork actually begins.
Also check: External Audit Services
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Stage 2: Understanding the Client Company
Auditors need a sufficient understanding of the business to assess the risk of material misstatement and to design the nature, timing, and extent of the procedures that follow. Risk assessment procedures at this stage typically include inquiries of management and staff, analytical procedures, and direct observation and inspection. Understanding the company’s internal controls is a core part of this stage, since it’s what lets the auditor identify where misstatement is more likely and tailor later procedures accordingly.
Stage 3: Assessing the Risk of Misstatement
Using what was learned in Stage 2, auditors identify which classes of transactions, account balances, and disclosures might be materially misstated. This risk assessment is composed of inherent risk (how susceptible an area is to material misstatement assuming no controls exist) and control risk (how well existing controls would catch or prevent that misstatement). The combined assessment is what determines how much testing each area actually needs.
Must check: Internal Audit Services
Stage 4: Performing Control Tests
Tests of controls determine whether key controls are properly designed and operating effectively in practice. As an example, an accounting department that verifies the serial sequence of shipping documents before preparing related journal entries has a control designed specifically to ensure every shipment is properly recorded. Testing that control means confirming it’s actually functioning as designed, not just that it exists on paper.
Worked Example: How Risk Assessment Shapes the Rest of the Audit
Consider a trading company where Stage 3 risk assessment identifies revenue recognition as high inherent risk, since the company recognizes revenue on shipment but has a history of processing sales near period-end. If Stage 2 also found the internal control over shipment cut-off to be weak, no formal review comparing shipment dates against period-end, the combined risk assessment is high. This directly shapes Stage 4: rather than a light sample of shipping documents, the auditor tests a larger, more targeted sample specifically around the period-end cut-off date. A company with the same inherent risk but strong, well-documented cut-off controls would warrant a lighter testing approach in that same area, since the control risk component would be lower.
Stage 5: Completing the Audit
Audit procedures are finalized, and some steps may be re-performed to confirm validity before conclusions are drawn. Final decisions are made on financial statement disclosures, and the auditor typically holds closing meetings with senior management to discuss findings before the report is issued.
Stage 6: Issuing the Audit Report
Where the audit’s findings are satisfactory, a standard unqualified report is issued. Where the audit process or findings deviate from what’s expected, materially, from scope limitations to identified misstatements, the report is modified accordingly, becoming qualified, adverse, or a disclaimer of opinion depending on the nature and severity of the issue.
See also: Corporate Tax Audit in UAE
How Long Does an External Audit Take
Timing depends heavily on company size, complexity, and how prepared the client is when fieldwork begins. A smaller company with organized records and straightforward transactions can often move through all six stages within 2 to 4 weeks. A larger or more complex business, particularly one with weak internal controls identified during Stage 3, multiple subsidiaries, or significant estimates and judgments in its financial statements, can extend well beyond that, sometimes to 6 to 10 weeks or more, since Stage 4 testing scales up wherever risk is assessed as high.
Common Reasons External Audits Get Delayed
- Incomplete records at the start of fieldwork. Missing invoices, reconciliations, or supporting schedules push Stage 2 and Stage 4 back before they can properly begin.
- Weak internal controls discovered mid-audit. A control that fails testing in Stage 4 often requires the auditor to expand substantive testing to compensate, adding time not originally planned for.
- Slow management response to information requests. Stage 5’s closing procedures depend on management availability to resolve open items promptly.
- Underestimating high-risk areas identified in Stage 3. Treating a flagged high-risk area with only routine testing, rather than the expanded scope it warrants, often surfaces as rework later in the process.
- Waiting until the deadline to engage an auditor. Starting Stage 1 planning with limited lead time compresses every subsequent stage unnecessarily.
Frequently Asked Questions (FAQs)
What are the stages of an external audit?
How long does an external audit typically take?
What is the difference between inherent risk and control risk?
What happens if a control fails testing during an external audit?
What is issued at the end of an external audit?
What is the most common reason external audits run longer than expected?
Need Expert Advice?
Contact the team at Farahat & Co. for professional support and expert insights for businesses operating in the UAE.
How Farahat & Co. Can Help
Farahat & Co. conducts external audits for UAE mainland and free zone businesses, including risk assessment, internal control testing, and Corporate Tax-aligned audit reporting.
Contact Farahat & Co. today to discuss your external audit requirements.
