COMMON ACCOUNTING MISTAKES AND HOW TO AVOID THEM

Aimee Pivott

Common Accounting Mistakes and How to Avoid Them


Accounting is the backbone of any successful business. Accurate financial records help you make informed decisions, stay compliant with tax laws, and maintain healthy cash flow. Yet, many businesses—especially small ones—fall into common accounting traps that can lead to costly errors.


In this post, we’ll explore the most frequent mistakes and practical steps to avoid them.


1. Mixing Personal and Business Finances


The mistake: Using the same bank account for personal and business transactions.
Why it matters: It makes tracking expenses and profits difficult, complicates tax filings, and can raise compliance issues.
How to avoid:

  • Open a dedicated business bank account.
  • Use accounting software to separate and categorize transactions.


2. Ignoring Cash Flow


The mistake: Focusing only on profit without monitoring cash flow.
Why it matters: A business can be profitable on paper but still run out of cash, leading to missed payments or insolvency.
How to avoid:

  • Regularly review cash flow statements.
  • Forecast future cash needs to prepare for slow periods.


3. Misclassifying Expenses


The mistake: Incorrectly categorizing expenses or failing to distinguish between capital and operational costs.
Why it matters: Misclassification can distort financial reports and lead to tax issues.
How to avoid:

  • Learn the basics of expense categories.
  • When in doubt, consult an accountant or use software with built-in guidance.


4. Not Reconciling Accounts


The mistake: Skipping monthly reconciliations for bank and credit accounts.
Why it matters: Errors and fraud can go unnoticed, resulting in inaccurate balances.
How to avoid:

  • Schedule monthly reconciliations.
  • Use automated tools to match transactions quickly.


5. Forgetting About Tax Deadlines


The mistake: Missing filing dates or underestimating tax obligations.
Why it matters: Late filings lead to penalties, interest, and unnecessary stress.
How to avoid:

  • Set calendar reminders for tax deadlines.
  • Use accounting software with tax compliance features.


6. Overlooking Depreciation


The mistake: Not accounting for depreciation on assets.
Why it matters: Inflates profits and misstates asset values, which can affect tax and investment decisions.
How to avoid:

  • Apply the correct depreciation method for each asset.
  • Update records regularly to reflect changes.


7. DIY Accounting Without Expertise


The mistake: Trying to manage complex accounting tasks without professional help.
Why it matters: Small mistakes can snowball into major financial problems.
How to avoid:

  • Invest in reliable accounting software.
  • Hire a qualified accountant for reviews or ongoing support.


Final Thoughts


Accounting mistakes are common, but they’re avoidable with the right systems and habits. By separating finances, monitoring cash flow, and seeking expert advice when needed, you’ll keep your business financially healthy and compliant.



Tip: If you’re feeling overwhelmed, consider outsourcing your accounting or using cloud-based tools that simplify the process.

By Aimee Pivott July 29, 2026
What New Zealand’s Holiday Pay Changes Mean for Employers and Employees After years of confusion, payroll errors, and costly remediation projects, New Zealand is set to replace the Holidays Act 2003 with a new employment leave framework designed to be simpler, clearer, and easier to administer. The Employment Leave Bill has now passed through Parliament, introducing significant changes to how leave is earned, taken, and paid. While the new law represents one of the biggest changes to leave entitlements in decades, it is important to note that the current Holidays Act remains in force during a transition period, with the new system expected to come into effect in 2028. Why Is the Holidays Act Being Replaced? The Holidays Act 2003 has long been criticised for being overly complex and difficult to apply, particularly for employees with variable hours, shift work arrangements, and changing work patterns. Numerous organisations across New Zealand have discovered holiday pay calculation errors, resulting in significant back-pay obligations to employees. The Government's goal is to create a leave system that is easier for both employers and employees to understand while reducing payroll compliance issues. The Biggest Changes Coming 1. Leave Will Accrue From Day One Under the current Holidays Act, employees generally become entitled to annual leave after 12 months of continuous employment and sick leave after six months. Under the new system, annual leave and sick leave will begin accruing from an employee's first day of work. This means employees will start building leave balances immediately rather than waiting for qualifying periods to pass. 2. Leave Will Be Measured in Hours One of the most significant reforms is the move away from calculating leave in weeks and days. Instead, leave entitlements will accrue and be tracked in hours. This change is expected to better reflect modern working arrangements, including part-time, casual, and flexible working patterns. 3. Employees Can Take Part-Day Leave Because leave will be recorded in hours, employees will have greater flexibility in how they use their leave. Rather than taking full days off, employees will be able to take only the hours they need. This could benefit employees who need time for appointments, family commitments, or shorter periods away from work. Workers can request to cash up to 25% of their annual leave balance, as at their last start date anniversary, up from the current maximum one week. 4. A Simpler Leave Payment System One of the most challenging aspects of the current law is determining the correct holiday pay calculation. Employers are often required to compare different payment methods to establish the correct amount. The new framework introduces a single hourly leave pay rate that applies across different types of leave, significantly simplifying payroll calculations. 5. Changes for Casual Workers and Additional Hours The new legislation introduces a 12.5% leave compensation payment for casual hours and additional hours worked beyond an employee's contracted standard hours. For many casual employees, this replaces the current 8% holiday pay model and may result in higher leave-related compensation being paid alongside wages. 6. Public Holiday Rules Will Be Clearer The legislation also introduces a revised "Otherwise Working Day" test, intended to make it easier to determine when an employee is entitled to public holiday benefits.  This is expected to provide greater certainty for employers managing employees with changing work schedules. 7. Bereavement and Family Violence Leave Access The new law also improves access to certain leave entitlements. Bereavement leave and family violence leave will be available from the start of employment rather than requiring employees to complete a qualifying period first. What Employers Should Do Now Although the new framework has been approved, employers are not required to change their current payroll systems immediately. The existing Holidays Act still applies, and businesses must continue complying with current leave and holiday pay requirements until the new legislation takes effect. However, employers should begin preparing by: Reviewing current payroll systems. Monitoring guidance from Employment New Zealand and MBIE. Understanding how hours-based leave accrual will affect their workforce. Planning future payroll and HR system updates. Continuing to address any historical holiday pay errors under the current legislation. What This Means for Employees For employees, the reforms aim to make leave entitlements easier to understand and easier to access. Leave balances will grow from day one, calculations should become more transparent, and workers with non-standard schedules may find their entitlements better reflect the hours they actually work. Final Thoughts The replacement of the Holidays Act marks a major shift in New Zealand employment law. By moving to an hours-based system, simplifying leave payments, and allowing leave to accrue from the first day of employment, the Government hopes to eliminate many of the compliance and payroll challenges that have plagued employers for years. For now, the key message is simple: the current Holidays Act still applies, but both employers and employees should start familiarising themselves with the upcoming changes to ensure a smooth transition when the new framework comes into effect.
Understanding the MSD Flexi-Wage Subsidy in New Zealand
Supporting people into sustainable employmen
By Aimee Pivott June 3, 2026
Understanding the MSD Flexi-Wage Subsidy in New Zealand Supporting people into sustainable employment is a core focus of New Zealand’s Ministry of Social Development (MSD). One of the key initiatives designed to bridge the gap between job seekers and employers is the Flexi-Wage Subsidy. This programme plays an importan
Governance isn’t corporate red tape — and it’s not just for big companies.
For SMEs, governance is s
By Amber Rowsell May 4, 2026
Governance isn’t corporate red tape — and it’s not just for big companies. For SMEs, governance is simply how decisions are made, monitored, and held accountable as the business grows. It’s not just compliance. Even the Institute of Directors in New Zealand makes it clear governance is about strategic oversight and lon
Now’s a great time to get started on our end of year questionnaires — before the months fly by and t
By Aimee Pivott April 23, 2026
Now’s a great time to get started on our end of year questionnaires — before the months fly by and the job takes four times as long!
If you or someone you know has a promising business idea but limited financial resources, you may qu
By Aimee Pivott April 19, 2026
If you or someone you know has a promising business idea but limited financial resources, you may qualify for WINZ support benefits created to assist New Zealanders in launching and developing their businesses. Starting or growing a business in New Zealand can be exciting — but it can also be financially tough, especia
Stocktakes aren’t just a tick‑box task — they’re essential for protecting your financials.
By Aimee Pivott March 31, 2026
Stocktakes aren’t just a tick‑box task — they’re essential for protecting your financials.
1. No Claims Discount is ending 

The No Claims Discount will be discontinued because it hasn’t ac
By Aimee Pivott March 9, 2026
1. No Claims Discount is ending The No Claims Discount will be discontinued because it hasn’t achieved the intended health and safety improvements and has required subsidising from other businesses. What’s changing: Levy invoices will no longer include a 10% discount or a 10% loading based on claims history
As the financial year wraps up, it’s a good time to check in on KiwiSaver, especially with several i
By Amber Bates March 3, 2026
As the financial year wraps up, it’s a good time to check in on KiwiSaver, especially with several important changes coming over the next few years. Some affect how much you contribute, while others change what the Government puts in.
Depreciation might sound like an accounting buzzword — but it plays a HUGE role in your financial
By Aimee Pivott February 25, 2026
Depreciation might sound like an accounting buzzword — but it plays a HUGE role in your financial
Starting a new financial year is a great chance to get on top of your cashflow and make sure the bus
By Jeff Rowsell February 17, 2026
Starting a new financial year is a great chance to get on top of your cashflow and make sure the bus
More Posts