Overview

IRD requires businesses to keep clear, auditable records for at least 7 years. An internal audit checklist can help ensure your records meet these requirements. Using an internal audit checklist is a practical step for businesses to maintain compliance.

Many New Zealand businesses find preparing an internal audit checklist overwhelming, especially when they juggle daily operations. But a financial audit helps every business ensure compliance, transparency, and accuracy in its coverage.

Directors must maintain proper accounting records to prepare and understand financial statements correctly. New Zealand’s standard tax year runs from April 1st to March 31st, and most annual audit work happens around these dates.

This piece will show you what documentation you need to prepare and how to organize it effectively. You’ll learn exactly what auditors look for. We’ve created practical, step-by-step advice tailored for NZ businesses, whether you need an internal audit checklist in Excel or want to understand what an internal audit checklist has.

Why Audit Documentation Matters for NZ Businesses

Audit documentation does more than fill up paperwork for New Zealand businesses. These records are the foundations of financial compliance and business credibility. Let’s get into why your organization needs thorough audit records.

Ensuring compliance with NZ tax laws

The Inland Revenue Department (IRD) runs audits to check your financial affairs and make sure you’ve paid the right amount of tax while following tax laws. Your business might face an audit if your tax returns show unusual patterns, your industry is under compliance focus, or someone reports potential non-compliance.

The IRD has launched tax governance campaigns that target major enterprises in New Zealand. Your business could face penalties during compliance reviews if it has poor tax governance, as this shows you haven’t taken reasonable care.

An internal audit checklist helps you spot issues before the IRD does. This proactive step lines up with what the IRD wants – voluntary compliance instead of confrontation. Keep in mind that the IRD can look at records going back to 2010 in some cases, so detailed documentation is crucial.

Building trust with stakeholders and banks

Independent financial statement auditing substantially boosts trust and confidence in your reported information. Audited financial statements prove your transparency and accountability when investors, banks, and stakeholders review your business.

It also helps when you need funding. Good audit documentation gives lenders and investors confidence about your organization’s financial health. Community funders usually want audited financial statements to see that you’re accountable and spend money transparently.

Good documentation helps your business meet governing bodies’ standards. Public organizations must answer both internally and externally for how they design and run their internal integrity systems. This becomes especially important when you’re spending public money or you retain control.

Avoiding penalties and audit delays

Poor documentation can lead to serious problems. The IRD might hit you with substantial penalties if they find you’ve willfully or negligently filed a false tax return. These shortfall penalties can range from 20% for minor mistakes to 150% for tax evasion.

You can cut these risks by:

  • Running regular internal audits with an internal audit checklist in Excel
  • Making voluntary disclosures before investigations start
  • Keeping accurate tax records

You can substantially reduce or even avoid penalties with early voluntary disclosure. A well-laid-out internal quality audit checklist prevents delays during formal audits and saves time and money.

Note that obstruction during an audit – including destroying relevant information or creating deliberate delays – can push penalties up by another 25%. Quick responses to documentation requests help maintain good relationships with auditors.

Step 1: Gather Core Financial Documents

A successful audit starts with gathering the right financial documents. IRD requires businesses to maintain complete financial records for at least seven years. A well-organized internal audit checklist helps streamline this process.

Annual financial statements and trial balance

Your financial statements need to comply with generally accepted accounting practice (GAAP) and should include these vital components:

  • Statement of financial performance (profit and loss)
  • Statement of movements in equity
  • Statement of financial position (balance sheet)
  • Statement of cash flow
  • Statement of accounting policies
  • Notes to the financial statements

Make sure note numbers on financial statements match the numbers in the notes. You should verify that all accounts have matching notes where needed and that total assets equal total equity and liabilities.

Bank statements and reconciliations

Bank statements provide crucial evidence during audits. You’ll need statements for the entire financial year for all bank accounts. This includes credit/debit card accounts, ideally going 4-6 weeks past your balance date. Regular reconciliations spot differences between your records and bank transactions. This helps you detect unauthorized transactions or errors quickly.

Invoices, receipts, and contracts

Start by collecting invoices and receipts for all payments made during the audit period. These documents show that transactions happened and were recorded correctly. You’ll also need all relevant contracts, lease agreements, and supporting documentation that explain the accounting logic behind transactions.

Payroll summaries and leave reports

The payroll documentation requires two main reports:

  1. A summary report showing total earnings and deductions for all employees for the entire financial year
  2. A leave liability report showing annual leave owing for all employees at balance date

Schools must keep Staff Usage and Expenditure reports, timesheet records, and School Annual Accrual reports until they complete the financial audit.

GST returns and tax filings

Your audit checklist should include all GST returns for the financial year. These returns show the GST collected on sales (output tax) and paid on purchases (input tax). You’ll want to verify these returns match your accounting records. Keeping accurate records of all tax filings becomes vital when you claim tax refunds or credits.

Step 2: Prepare Supporting Records and Schedules

Supporting schedules give auditors essential details beyond the main financial documents. These schedules create an audit trail and help explain what makes up each line item in financial statements.

Fixed asset register and depreciation schedules

A well-maintained asset register should track each asset’s description, purchase price, and when you bought it. The register needs estimated useful life details, depreciation methods, private use percentages, and adjusted tax values. This helps you claim the right amount of depreciation. Each year’s depreciation claim typically stays the same and uses the original cost price as its base.

Accounts receivable and payable lists

Lead schedules should summarize all general ledger accounts that make up your receivables and payables. Your financial statements must match these schedules, which need links to backup documentation. Check if you can collect all receivables by looking at overdue amounts and setting reasonable allowances for doubtful debts.

Inventory counts and valuation methods

Physical counts or perpetual inventory systems help track inventory accurately. Your management team should make sure inventory gets counted at least once every year. Auditors will check if inventory exists by looking at it directly, watching how counts happen, and doing test counts themselves.

Loan and lease agreements

Keep detailed records of every loan and lease agreement. NZ IFRS 16 says you must record lease liabilities and right-of-use assets, so you need proper documentation of your calculations and borrowing rates.

Work-in-progress and prepayments

Work-in-progress shows revenue you haven’t billed yet, recorded at what you expect to receive. Your documentation should show how you calculated WIP by estimating how complete each job is and what work remains.

Step 3: Review Internal Controls and Pre-Audit Checks

An audit looks beyond numbers to understand the systems that support them. Sound internal controls are vital to protect financial data integrity, prevent fraud, and show good governance.

Segregation of duties and approval workflows

Segregation of duties stops any individual from controlling an entire financial process. Auditors check if business controls work well to protect against mistakes and fraud. New Zealand businesses need clear policies that separate board and management responsibilities.

Small organizations with few staff members find it hard to separate duties perfectly. Notwithstanding that, owner-managers can set up other controls through good oversight. Small changes can make a big difference. Adding approval steps or monthly reviews will reduce risk substantially.

Access control and data security

Public organizations must have resilient data security to keep public trust. People lose faith quickly in organizations that suffer data breaches. The most important measures include:

  • Setting up multi-factor authentication for system access
  • Checking user access and removing old staff credentials
  • Setting strong password rules
  • Setting up secure Wi-Fi and encrypted file sharing
  • Running regular security checks and updates

Regular audits confirm proper system access and spot weak security controls that need fixes.

Internal audit checklist in Excel or PDF

A good internal audit checklist brings structure and consistency to reviews. Excel checklists give you several benefits:

  • Full question sets that cover all requirements
  • Live compliance dashboards with instant visuals
  • Options to filter and run focused audits
  • Drop-down menus that make recording findings easy

These tools help your processes line up with internal standards, regulations, and best practices.

Conducting a pre-audit review

Running a mock audit before the real review helps you spot and fix problems early. Start with your riskiest areas. Cash handling problems or unchecked payroll entries need immediate attention. Audit tools can help find warning signs like too many deductions or sudden inventory changes.

Unusual transactions need brief written explanations about big drops in revenue or large expenses. These clear summaries help auditors see the complete picture without raising unnecessary concerns.

Conclusion

Good audit documentation definitely makes the most important difference when your business faces an IRD review. This piece walks you through everything in audit preparation. You’ll learn about gathering core financial documents and implementing reliable internal controls. Don’t see audit preparation as a tedious compliance exercise. Call it a chance to strengthen your business operations.

Detailed records protect your business from potential penalties and build credibility with stakeholders. Then your financial transparency becomes a business advantage when you seek funding or mutually beneficial alliances.

On top of that, it saves time and stress during audit season when you organize documentation using our three-step process. A solid foundation for any regulatory examination emerges from our systematic approach. This includes gathering core financial documents, preparing supporting records, and reviewing internal controls.

Without doubt, smart businesses conduct regular internal reviews using checklists before external auditors arrive. This helps them spot potential problems early and allows time to correct and explain properly.

Note that audit requirements change as business regulations evolve. Staying current with NZ tax laws and accounting standards helps you maintain compliance. Set a regular schedule to review your documentation practices quarterly. This ensures nothing slips through the cracks.

Effective audit preparation shows more than just regulatory compliance. It demonstrates your steadfast dedication to financial integrity and sound business management. By doing this and being systematic, your NZ business will be ready for any financial scrutiny.

FAQs

Q1. What are the essential components of an audit documentation checklist for NZ businesses? An audit documentation checklist for NZ businesses should include annual financial statements, bank statements and reconciliations, invoices and receipts, payroll summaries, GST returns, fixed asset registers, accounts receivable and payable lists, inventory records, loan agreements, and internal control documentation.

Q2. How long should NZ businesses keep their financial records for audit purposes? 

NZ businesses are required to maintain complete financial records for at least seven years. This ensures compliance with IRD regulations and facilitates smooth auditing processes when needed.

Q3. How can NZ businesses improve their internal controls for audit readiness? 

NZ businesses can improve their internal controls by implementing proper segregation of duties, establishing clear approval workflows, enhancing data security measures, using multi-factor authentication, regularly reviewing user access, and conducting periodic security checks.

About the Author: Jonathan Maharaj

Jonathan Maharaj
Jonathan Maharaj FCPA is the founder and director of Aurora Financials Limited, an award-winning New Zealand accounting and business consulting firm. A Fellow of CPA Australia with over 20 years of audit and compliance experience, Jonathan has worked across public practice, the NZX, and Kiwibank, serving clients from SMEs and charities to listed companies. He is a member of the ACFE Advisory Council, a CPA Australia New Zealand Division Councillor, and leads Aurora Financials as a PrimeGlobal member firm in the Asia Pacific region. His insights on leadership, profit, and financial performance have been featured in Forbes, The New York Times, CBS, ABC, and Associated Press. The content on this website is general information only and does not constitute financial or professional advice.