Fraud prevention tips: How to help your small business clients reduce risk

Published Friday 6 November 2026

Table of contents

• Why fraud is a serious risk for small businesses
• Common types of fraud affecting small businesses
• 10 fraud prevention strategies to recommend to clients
• How technology supports fraud prevention
• NZ fraud reporting resources
• Build fraud prevention into your advisory services
• Protect your clients from fraud with Xero
• FAQs on fraud prevention for small businesses

Key takeaways

• Small organisations with fewer than 100 employees face a median fraud loss of US$126,000, according to the ACFE Occupational Fraud 2026: A Report to the Nations. Your clients are prime targets.
• Asset misappropriation accounts for 90% of occupational fraud cases, making internal controls and segregation of duties your strongest first line of defence.
• Cloud accounting tools with automated bank feeds, audit trails, and user permissions give you real-time visibility into client accounts, so irregularities surface faster.
• Positioning fraud prevention as part of your advisory services strengthens client trust, reduces risk, and creates a meaningful point of difference for your practice.

Why fraud is a serious risk for small businesses

Small businesses face real fraud risk. Smaller organisations often lack the internal controls and dedicated compliance resources that larger firms rely on, which makes them disproportionately vulnerable.

The Association of Certified Fraud Examiners (ACFE) Occupational Fraud 2026: A Report to the Nations analysed 2,402 cases of occupational fraud investigated between January 2024 and September 2025. Organisations with fewer than 100 employees reported a median loss of US$126,000 per case, the highest median across all organisation sizes. Three categories of fraud drive these losses: asset misappropriation (90% of cases), corruption (45%), and financial statement fraud (6%).

In New Zealand, the Serious Fraud Office (SFO) reported $174.5 million in fraud charges across 23 active prosecutions in its 2024–25 annual report. These cases reflect a pattern that touches businesses of every size and sector.

As an accountant or bookkeeper, you're often the first person to spot the warning signs. Your role puts you in a strong position to help clients build defences before fraud occurs.

Common types of fraud affecting small businesses

Understanding the most common fraud types helps you advise clients on where to focus their prevention efforts. These are the categories you'll encounter most often in practice.

• Employee theft and expense fraud, such as skimming cash, falsifying expense claims, or misusing company credit cards. This falls under asset misappropriation, the most prevalent category.
• Invoice and payment fraud, such as fake supplier invoices, duplicate payments, or business email compromise (BEC) scams where criminals impersonate suppliers to redirect payments.
• Payroll fraud, such as ghost employees, inflated hours, or unauthorised pay rate changes. These are particularly common in businesses with limited payroll oversight.
• Cyber fraud, such as phishing emails, ransomware, and identity theft targeting business accounts. Digital fraud can affect businesses of any size.
• Financial statement manipulation, such as overstating revenue, understating liabilities, or concealing losses. Less common than asset misappropriation but typically involves higher dollar amounts.

10 fraud prevention strategies to recommend to clients

These strategies give you a practical framework for client conversations about fraud risk. Each one addresses a specific vulnerability that small businesses commonly overlook.

1. Segregate financial duties

No single person should control an entire financial process from start to finish. Recommend that your clients separate responsibilities for authorising transactions, recording them, and reconciling accounts.

Even in a small team, basic segregation makes a difference. The person who approves supplier payments shouldn't be the same person who sets up new suppliers in the system.

2. Strengthen hiring and vetting processes

Proper vetting lowers the risk of giving financial access to the wrong person. Encourage clients to conduct reference checks, verify qualifications, and run background checks for roles with financial access.

This applies to contractors and temporary staff as well, especially those given access to accounting systems or bank accounts.

3. Establish internal controls and approval workflows

Clear policies on spending limits, purchase orders, and payment approvals reduce the opportunity for fraud. Help your clients document these controls so they're consistently applied.

Approval workflows should include dual sign-off for transactions above a defined threshold. The threshold will vary by business size, but even a modest limit adds accountability.

4. Monitor bank accounts and reconcile regularly

Regular bank reconciliation helps clients detect fraud early. Encourage clients to reconcile accounts at least weekly.

Cloud accounting software with automated bank feeds makes this significantly easier. Transactions flow in daily, so discrepancies surface quickly rather than hiding for weeks. With Xero Partner Hub, a bank reconciliation overview and bank feed alerts on your homepage show you in one place which clients need attention.

5. Conduct surprise audits of high-risk areas

Scheduled audits are valuable, but predictable timing gives fraudsters the chance to cover their tracks. Recommend periodic surprise reviews of petty cash, inventory, expense reports, and high-value transactions.

You don't need to conduct a full audit every time. Spot checks on specific areas, rotated randomly, help deter opportunistic fraud.

6. Train employees on fraud awareness and reporting

Employees who understand common fraud schemes are more likely to recognise and report suspicious activity. Encourage clients to provide regular training that covers phishing, invoice scams, and internal fraud indicators.

A clear, confidential reporting process is essential. Staff need to know they can raise concerns without fear of retaliation.

7. Secure payment and credit card systems

Payment systems are a primary target for both internal and external fraud. Recommend that clients review who has access to company credit cards, set individual spending limits, and require receipts for all transactions.

For electronic payments, multi-factor authentication and payment approval workflows add critical layers of security.

8. Verify business partners and suppliers

Supplier fraud often starts with a fake or compromised vendor account. Advise clients to verify new suppliers independently before making payments, and to confirm any changes to banking details directly with the supplier by phone.

BEC scams rely on urgency and impersonation. A simple verification call can prevent significant losses.

9. Investigate every irregularity promptly

Small discrepancies can signal larger problems. A pattern of minor overcharges, unexplained adjustments, or missing documentation shouldn't be dismissed as clerical errors without investigation.

Advise clients to follow up on every anomaly, no matter how small. Early investigation limits losses and sends a clear message that financial controls are taken seriously.

10. Engage specialist help when needed

Not every fraud situation can be handled internally. When clients suspect significant or complex fraud, recommend they engage a forensic accountant or contact the relevant authorities.

Your role is to help clients recognise when a situation has moved beyond routine controls. Knowing when to escalate is as important as the prevention measures themselves.

How technology supports fraud prevention

Cloud accounting software has changed how small businesses can prevent fraud. The right tools record transactions and also create visibility and accountability across every account.

Features that directly support fraud prevention include user permissions and role-based access, so only authorised staff can view or edit sensitive data. Audit trails record every change to a transaction, including who made it and when. Automated bank feeds pull transactions directly from the bank, removing opportunities to manipulate data entry.

Real-time reporting means you can spot unusual patterns as they emerge, rather than discovering them weeks later during reconciliation. For practices managing multiple clients, Xero Partner Hub gives you a central view across client work and practice management. It brings Xero HQ, Xero Practice Manager and Xero Tax together, with homepage widgets that show which clients need your attention.

Technology works best alongside good internal controls. When automated systems handle routine checks, your clients can focus their oversight on higher-risk areas.

NZ fraud reporting resources

When fraud is suspected or confirmed, your clients need to know where to report it. New Zealand has several organisations that handle different types of fraud, and pointing clients to the right one saves time and improves outcomes.

• The Serious Fraud Office (SFO) handles complex or high-value financial crime. Report via sfo.govt.nz.
• NZ Police is the first point of contact for most fraud complaints, including theft, forgery, and identity fraud. Report online at police.govt.nz or call 105.
• Netsafe provides advice and support for online scams, phishing, and cyber fraud. Visit netsafe.org.nz.
• The National Cyber Security Centre (NCSC), which now includes CERT NZ, handles cyber security incidents including ransomware, data breaches, and business email compromise. Report at ncsc.govt.nz/report or call 0800 114 115.

Encourage clients to report suspected fraud even if the amount seems small. Reporting helps authorities identify patterns and prevents repeat offending.

Build fraud prevention into your advisory services

Fraud prevention is a natural extension of the work you already do. You understand your clients' financial systems, their risk profiles, and where the gaps are. That knowledge positions you to offer fraud risk assessments as a structured advisory service.

Start by reviewing internal controls during routine engagements. Identify where duties aren't segregated, where approval processes are missing, and where technology could close gaps. Then present your findings as a fraud risk summary with clear recommendations.

Clients value advisors who proactively protect their business and help them build lasting financial resilience. Offering fraud prevention advice builds trust, deepens relationships, and creates a genuine point of difference for your practice.

As part of the Xero Partner Programme, you get access to tools that make this easier. Xero Partner Hub gives you one homepage with widgets that show which clients need follow-up. Your clients also get user permissions and audit trails in Xero, and you get support from Xero when you need it.

Protect your clients from fraud with Xero

Fraud prevention is an ongoing part of good business management. By combining practical controls with the right technology, you can help your clients reduce risk and build more resilient businesses.

Join the partner program to get the tools and support your practice needs to deliver this advice to every client.

FAQs on fraud prevention for small businesses

Here are answers to frequently asked questions about fraud prevention for small businesses.

What are the most common types of small business fraud?

The fraud types that pose the greatest risk vary by business model, so a retail client with high cash turnover faces different exposure than a professional services firm processing electronic invoices. Start by mapping each client's payment flows and access points, then tailor your prevention recommendations to their highest-probability risks.

How can accountants and bookkeepers help clients prevent fraud?

Start with a structured fraud risk conversation during routine engagements, asking who has access to financial systems, whether one person controls an entire payment process, and how changes to supplier bank details are verified. These conversations often reveal gaps clients haven't considered and position you as a trusted advisor.

What should a small business do if they suspect fraud?

Secure evidence first: advise clients to quietly restrict the suspected individual's system access, avoid direct confrontation, and document what they've observed. You can then help them decide whether to engage a forensic specialist, report to authorities, or both.

How does accounting software help detect fraud?

Cloud accounting moves oversight from periodic reviews to continuous monitoring, so discrepancies surface sooner. For practitioners managing multiple clients, this means you can allocate your review time based on risk signals rather than working through every account manually.

Where can NZ businesses report fraud?

Before a client reports, advise them to gather transaction records, email trails, and screenshots of suspicious activity, and consider checking confidentiality obligations with a legal advisor. The NZ fraud reporting resources section above lists the agency and direct link for each type of fraud.