Key Difference Between Internal Audit and External Audit

An audit is an impartial review of an organization’s or individual’s books of accounts, financial statements, or reports to ensure accuracy and compliance with laws and regulations. Internal and external audits exist.

The Financial Report covers the balance sheet, income statement, cash flow statement, etc. An audit checks if a financial report fits an organization’s financial situation at a certain date. The auditor evaluates the company’s financial report according to government standards.

Internal Audit vs External Audit Comparison Table

A comparison chart shows important distinctions between Internal Audit and External Audit:

FeatureInternal AuditExternal Audit
PurposeProvides independent, objective assurance and consulting services to improve the organization’s operationsEnsures the accuracy and reliability of financial statements and compliance with regulations
IndependenceWorks within the organization but aims to maintain objectivity and independenceConducted by external, independent auditors who are not part of the organization
Reporting LineTypically reports to the highest levels of management (e.g., Board of Directors, Audit Committee)Reports to shareholders and stakeholders through financial statements
Scope of WorkCovers a broad range of activities, including financial, operational, and compliance auditsFocuses primarily on financial information and compliance with accounting standards
FrequencyConducted periodically throughout the year based on a risk-based audit planUsually conducted annually as part of the financial reporting process
Regulatory RequirementMay be required by regulatory bodies or industry standards, but primarily serves internal needsMandated by regulatory bodies, such as the Securities and Exchange Commission (SEC)
Risk AssessmentConsiders a wide range of risks, including operational, strategic, and compliance risksPrimarily focused on financial statement risks and compliance risks
Nature of FindingsIdentifies areas for improvement and provides recommendations to enhance internal controls and efficiencyVerifies the accuracy of financial statements and ensures compliance with accounting principles
Responsibility for RemediationInternal management is responsible for implementing recommendationsExternal auditors provide recommendations but are not responsible for implementation
ConfidentialityInternal audit reports are typically confidential and shared within the organizationExternal audit reports are made public and shared with regulatory bodies, shareholders, and stakeholders
Continuity of RelationshipOngoing relationship with the organization, providing continuous improvement recommendationsTypically, a new external audit engagement is initiated each year
CostGenerally borne by the organization as part of its internal control and risk management processesThe organization bears the cost of the external audit engagement
Internal Audit vs External Audit