Financial Auditing Services: A Guide for New Zealand Businesses

Reliable financial information is essential for businesses, shareholders, directors, lenders and other stakeholders. Financial statements provide insight into an organisation’s performance and financial position, but stakeholders may also need confidence that the information has been prepared appropriately.

Financial auditing services provide an independent examination of financial statements and the underlying financial information. Through structured audit procedures, auditors assess risks, examine supporting evidence and form an opinion on whether the financial statements are materially misstated.

For New Zealand businesses, financial auditing can serve both regulatory and practical purposes. Certain entities are required to submit audited financial statements, while others may choose independent auditing to provide greater confidence to stakeholders.

What Are Financial Auditing Services?

Financial auditing services involve the independent examination of an organisation’s financial statements and related records.

The purpose of a financial statement audit is to obtain reasonable assurance about whether the financial statements as a whole are free from material misstatement, whether caused by fraud or error.

New Zealand’s auditing framework is based on standards issued by the External Reporting Board (XRB). ISA (NZ) 200 sets out the overall objectives and responsibilities of an independent auditor conducting an audit of financial statements.

An audit can involve examining financial transactions, account balances, accounting estimates, internal controls and financial statement disclosures.

The auditor does not simply verify that every figure is correct. Instead, the audit is designed to obtain sufficient appropriate evidence to support the auditor’s conclusion.

Who Needs Financial Auditing Services in New Zealand?

Not every business in New Zealand is legally required to have its financial statements audited.

Audit requirements depend on factors such as the organisation’s legal structure, size, ownership, regulatory status and applicable legislation.

Some large New Zealand companies and all large overseas companies must file annual audited financial statements. All FMC reporting entities must also lodge annual audited financial statements.

The Companies Office notes that changes to the definition of large New Zealand and overseas companies came into force in September 2025. For example, certain companies are considered large based on specified asset and revenue thresholds over the relevant preceding accounting periods.

FMC reporting entities have additional financial reporting requirements, including requirements concerning the auditor. The Companies Office states that financial statements submitted by an FMC reporting entity must be audited by a licensed auditor or registered audit firm, subject to the applicable requirements.

Businesses should therefore assess their own circumstances rather than assuming that every company requires an annual audit.

What Do Financial Auditors Examine?

The scope of a financial audit varies depending on the organisation and the risks involved.

A financial auditor may examine:

• Revenue and sales
• Operating expenses
• Cash and bank balances
• Accounts receivable
• Accounts payable
• Inventory
• Fixed assets
• Loans and borrowings
• Payroll
• Tax-related balances
• Investments
• Related-party transactions
• Provisions and liabilities
• Accounting estimates
• Financial statement disclosures

The auditor may also consider relevant internal controls and processes that affect financial reporting.

The purpose is to obtain sufficient appropriate audit evidence to support reasonable conclusions. ISA (NZ) 500 specifically addresses the auditor’s responsibility for obtaining sufficient appropriate audit evidence.

Why Are Financial Auditing Services Important?

Financial auditing can provide value beyond simply fulfilling a statutory requirement.

Independent Assessment

An external financial auditor provides an independent perspective on the organisation’s financial statements.

This can be particularly valuable where shareholders, lenders, investors or other stakeholders rely on the financial information.

Greater Confidence in Financial Information

Audited financial statements can provide greater confidence that financial information has been examined in accordance with applicable auditing standards.

However, an audit provides reasonable assurance, not absolute assurance.

Identification of Financial Reporting Issues

The audit process may identify errors, inconsistencies, unsupported balances or other matters requiring attention.

Addressing these issues can improve the quality of financial reporting.

Support for Regulatory Requirements

Where an audit is required by law or regulation, using appropriate financial auditing services is part of meeting the organisation’s financial reporting obligations.

Better Financial Processes

Although the primary purpose of a financial statement audit is not to redesign business processes, the audit may identify weaknesses in financial reporting processes or controls.

These observations can help management consider improvements.

The Financial Audit Process

A professional financial audit follows a structured process.

1. Planning the Audit

The auditor begins by planning the engagement.

This involves developing an understanding of the organisation, its activities, financial reporting requirements and relevant risks.

ISA (NZ) 300 specifically addresses the auditor’s responsibility to plan an audit of financial statements.

Effective planning helps the auditor determine the nature, timing and extent of audit procedures.

2. Understanding the Business

The auditor needs to understand the organisation and its operating environment.

This may involve considering:

• The business model
• Industry conditions
• Accounting systems
• Significant transactions
• Internal controls
• Financial reporting processes
• Areas of management judgement

This understanding helps the auditor identify areas where material misstatements could arise.

3. Assessing Audit Risk

Risk assessment is an important part of financial auditing.

Auditors identify and assess risks that could result in material misstatements in the financial statements.

Higher-risk areas may require more detailed or extensive audit procedures.

4. Gathering Audit Evidence

Auditors gather evidence to support their conclusions.

Evidence may include:

• Invoices
• Bank statements
• Contracts
• Receipts
• Payroll records
• Accounting system reports
• Management reports
• Confirmations
• Physical observations
• Other supporting documents

The auditor determines which procedures are appropriate based on the circumstances.

5. Testing Transactions and Balances

The auditor tests selected transactions and financial statement balances.

This may involve examining supporting documents, recalculating amounts, comparing information or performing other audit procedures.

Auditors do not generally examine every transaction individually. Instead, audit procedures are designed around assessed risks and the need to obtain sufficient appropriate evidence.

6. Evaluating the Findings

After completing the testing, the auditor evaluates the evidence obtained.

If errors or other issues are identified, the auditor may discuss them with management and request additional information or adjustments where appropriate.

7. Forming the Audit Opinion

The final stage is the auditor’s report.

ISA (NZ) 700 deals with the auditor’s responsibility to form an opinion on financial statements and report that opinion.

The opinion communicates the auditor’s conclusion based on the evidence obtained during the engagement.

Understanding Audit Opinions

An unmodified opinion generally means that the auditor has concluded that the financial statements are prepared, in all material respects, in accordance with the applicable financial reporting framework.

However, an audit opinion can be modified when circumstances require it.

The nature of the opinion depends on matters identified during the audit and their significance to the financial statements.

An audit opinion should not be interpreted as a guarantee that a business is financially successful or will remain profitable. It relates specifically to the financial statements and the applicable reporting framework.

Financial Auditing Services vs Accounting Services

Accounting and financial auditing are different professional functions.

Accounting services may include:

• Recording transactions
• Preparing financial statements
• Bank reconciliations
• Accounts payable management
• Accounts receivable management
• Payroll processing
• Tax-related accounting
• Management reporting

Financial auditing, on the other hand, involves an independent examination of financial statements and supporting evidence.

The distinction is important because independence is a fundamental consideration in external financial auditing.

A business may therefore use accounting services throughout the year and engage an independent auditor for its annual financial statement audit.

Financial Audit vs Internal Audit

Financial auditing and internal auditing also have different purposes.

A financial audit primarily focuses on independently examining financial statements and expressing an audit opinion.

An internal audit generally has a broader scope and can examine governance, risk management, internal controls, operational processes and compliance.

For example, an internal audit may assess whether a company’s purchasing controls are effective, while a financial statement audit may consider those controls where they are relevant to financial reporting.

Both functions can contribute to stronger financial and organisational oversight.

Benefits of Professional Financial Audit Services

Businesses can gain several benefits from engaging experienced financial auditors.

Increased Stakeholder Confidence

Independent financial auditing can give stakeholders greater confidence in the financial information they rely on.

Improved Financial Reporting

Audit procedures can identify inconsistencies or issues that may need to be corrected.

Better Understanding of Financial Risks

The audit process considers risks that could lead to material misstatement, helping bring important financial reporting risks to management’s attention.

Stronger Financial Controls

An audit may identify weaknesses in controls relevant to financial reporting.

Support for Business Growth

As organisations grow, financial reporting often becomes more complex. Independent auditing can help provide confidence in financial information used by management and stakeholders.

Preparing for a Financial Audit

Businesses can make the audit process more efficient by keeping their accounting records up to date throughout the year.

Common information requested by financial auditors may include:

• Financial statements
• General ledger
• Bank statements and reconciliations
• Accounts receivable schedules
• Accounts payable schedules
• Fixed asset registers
• Inventory records
• Loan agreements
• Major contracts
• Payroll records
• Tax documentation
• Details of related-party transactions
• Supporting documentation for significant transactions

It is also useful to identify significant changes in advance.

Major acquisitions, new financing arrangements, restructuring, unusual transactions or significant accounting estimates may require additional audit attention.

Choosing a Financial Auditing Services Provider

Choosing the right audit provider is an important decision.

Industry Experience

An auditor familiar with your industry may have a better understanding of common risks and financial reporting considerations.

Technical Expertise

Financial auditing requires knowledge of applicable accounting and auditing standards.

The XRB’s auditing standards cover areas including audit planning, quality management, audit evidence, fraud, risk assessment and auditor reporting.

Independence

An external financial auditor needs to maintain appropriate independence and objectivity throughout the engagement.

Clear Communication

The auditor should explain information requirements, timelines and findings clearly.

Appropriate Credentials

Where statutory requirements apply, businesses should confirm that their selected auditor meets the relevant licensing, registration and qualification requirements.

The Companies Office provides specific requirements for entities subject to statutory audited financial statement obligations.

Financial Auditing Standards in New Zealand

Financial audits in New Zealand are conducted within the XRB’s auditing and assurance standards framework.

Key standards cover areas such as:

• Overall auditor responsibilities
• Audit planning
• Quality management
• Risk assessment
• Audit evidence
• Fraud
• Accounting estimates
• Related parties
• Going concern
• Subsequent events
• Auditor reporting

For example, ISA (NZ) 220 addresses quality management at the audit engagement level, while ISA (NZ) 300 addresses audit planning.

The XRB has also introduced the ISA (NZ) for Less Complex Entities, a stand-alone standard available for audits of eligible less complex entities for periods beginning on or after 15 December 2025.

Because auditing standards can be updated, auditors and businesses should use the standards applicable to the relevant reporting period.

How Aurora Financials Can Help

Aurora Financials can support businesses with the accounting and financial reporting processes that underpin effective audit preparation.

Accurate bookkeeping, timely reconciliations, organised financial records and properly maintained supporting documentation can make it easier to respond to audit requests.

For businesses preparing for a financial audit, having reliable financial information throughout the year can reduce last-minute work and help identify potential issues earlier.

Aurora Financials can help businesses maintain organised financial information and strengthen the processes that support accurate reporting and informed decision-making.

Final Thoughts

Financial auditing services provide businesses with an independent assessment of their financial statements and supporting information.

For organisations that are legally required to undergo an audit, selecting an appropriate audit provider and maintaining accurate records can help make the process more efficient. For businesses seeking independent assurance voluntarily, a financial audit can also provide greater confidence to shareholders, lenders and other stakeholders.

A successful audit depends on more than the work performed at year-end. Accurate records, appropriate documentation and effective financial processes throughout the year can create a stronger foundation for the audit engagement.

Whether an organisation is preparing for a statutory audit or looking for independent assurance over its financial reporting, professional financial auditing services can contribute to greater confidence, stronger reporting and better financial governance.

Frequently Asked Questions About Financial Auditing Services

1. What are financial auditing services?

Financial auditing services involve the independent examination of an organisation’s financial statements and supporting evidence. The auditor performs appropriate procedures and forms an opinion based on the evidence obtained.

2. Does every New Zealand business need financial auditing services?

No. Audit requirements depend on factors such as the organisation’s size, structure, ownership and regulatory status. Certain large companies and FMC reporting entities are subject to statutory audit requirements.

3. What does a financial auditor check?

A financial auditor may examine revenue, expenses, assets, liabilities, cash, inventory, accounting estimates, transactions and financial statement disclosures. The exact procedures depend on the organisation’s circumstances and assessed risks.

4. How long does a financial audit take?

The timeframe depends on the size and complexity of the organisation, the scope of the engagement, the quality of accounting records and how quickly requested information is provided.

5. What is the difference between accounting and financial auditing?

Accounting involves preparing and maintaining financial information, while financial auditing involves an independent examination of financial statements and supporting evidence.

6. What should a business do before a financial audit?

Businesses should ensure that their accounting records are current, bank accounts are reconciled and supporting documentation is organised. Significant transactions, contracts, loans and other important financial matters should also be properly documented.