Payroll sounds simple on paper. Pay the right person, the right amount, on the right day. Yet underpayment scandals keep making headlines across Australia, from small cafés to some of the country's largest retailers and universities. If household-name companies with entire finance departments can get it wrong, what hope does a small business with one part-time bookkeeper have?
The honest answer: a good chance, actually — but only with the right systems in place. This article walks through why underpayments happen, what they cost, and how businesses of any size can build a payroll process that protects both employees and the organisation itself.
Why Underpayment Keeps Happening
Underpayment is rarely about employers deliberately ripping off staff. In most documented cases, it comes down to complexity, not malice.
Australia's workplace relations system is layered. You've got the Fair Work Act 2009, modern awards, enterprise agreements, the National Employment Standards, and state-based long service leave rules — all sitting on top of each other. A single employee's correct pay rate might depend on their age, classification, hours worked, the day of the week, and whether they hit an overtime threshold.
Add in things like allowances, penalty rates, and annualised salary arrangements, and it's easy to see how errors creep in.
A mid-sized hospitality business owner once described it to me as "trying to do a tax return every single fortnight, except the rules change depending on who you're paying." That's not far off. Awards get varied, minimum wages increase annually, and businesses that don't actively track these updates fall behind without even realising it.
Common Triggers for Payroll Mistakes
A few patterns show up again and again in underpayment cases reported to the Fair Work Ombudsman:
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Misclassifying employees under the wrong award or pay level, often after a role changes but the payroll record doesn't get updated.
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Treating annualised salaries as a "set and forget" arrangement, without checking whether the salary still covers all hours actually worked, including overtime and penalty rates.
These aren't exotic scenarios. They happen in businesses that genuinely believe they're doing the right thing.
The Real Cost of Getting It Wrong
It's tempting to think of underpayment as a minor admin issue that gets fixed with a back-payment and an apology. In practice, the consequences run much deeper.
Financial Penalties
The Fair Work Ombudsman has the power to pursue civil penalties against businesses found to have underpaid staff, and those penalties have increased significantly in recent years following changes to the Fair Work Act. According to industry reports, serious or systemic underpayment can now attract penalties many times higher than in the past, particularly where conduct is found to be deliberate or reckless.
Beyond the fine itself, businesses are usually required to back-pay every affected employee, sometimes going back several years. For a company with hundreds of staff, that bill can run into the millions before legal costs are even factored in.
Reputational Damage
Money is recoverable. Trust is harder to rebuild.
When an underpayment story breaks, it rarely stays contained to a quiet HR conversation. Customers see it. Job candidates see it. Existing staff start asking questions about their own pay. For brands that have spent years building a reputation around fairness or "great place to work" credentials, one underpayment headline can undo a lot of that goodwill almost overnight.
Operational Disruption
Fixing a large-scale underpayment issue is not a quick task. It typically involves:
Auditing years of payroll data, often manually, because the original error wasn't something the payroll system could catch on its own. This pulls finance and HR teams away from regular work for weeks or months, and frequently requires external consultants or legal advisors to manage the remediation properly.
Building a Payroll System That Protects Everyone
The good news is that underpayment is largely preventable. It's not about hiring an army of compliance officers — it's about building habits and checks into the payroll process itself.
1. Get the Award and Classification Right From Day One
Every underpayment audit tends to trace back to the same starting point: a job wasn't matched to the correct award or classification when the employee was hired.
Before a new starter's first pay run, it's worth confirming:
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Which award or agreement actually applies to their role and industry
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Whether their classification level matches the duties they're genuinely performing, not just their job title
This sounds obvious, but classifications drift over time. Someone hired as a junior often takes on senior duties within a year or two, and unless someone is actively reviewing this, their pay rate doesn't move with them.
2. Treat Annualised Salaries With Caution
Annualised salary arrangements are popular because they simplify payroll — one flat amount, paid consistently, no need to calculate penalty rates each week.
The catch is that under several awards, employers using annualised salaries are required to keep records showing the salary still covers everything the employee is legally owed, including any overtime or penalties triggered by actual hours worked. If an employee's roster changes and they start working more weekends or longer hours, that flat salary can quietly fall below what they're entitled to.
A practical habit here: review annualised salary employees against their actual rostered and worked hours at least once or twice a year, not just when something feels off.
3. Keep Payroll Software and Award Interpretation Updated
Minimum wages and award rates change regularly — most notably with the annual wage review that typically takes effect from 1 July each year in Australia. Payroll software is only as accurate as the rates and rules fed into it.
A business using outdated award templates, or manually calculating pay outside of a properly configured system, is exposed every single pay cycle until someone catches the discrepancy. Reputable payroll platforms generally update their award interpretation engines around these changes, but it's still worth a manual spot-check rather than assuming it's been handled correctly.
4. Conduct Regular Internal Payroll Audits
Most underpayment cases aren't discovered through a single dramatic error — they build up gradually and get noticed during a structured review.
A simple internal audit might include:
Comparing a sample of payslips against award rates and rostered hours each quarter, and cross-checking leave accruals, superannuation contributions, and any allowances against current entitlements.
This doesn't need to be a massive undertaking. Even a small business reviewing ten random payslips each quarter against the relevant award can catch issues long before they snowball into a five-year liability.
5. Train the People Running Payroll
Payroll software handles the calculations, but it can't make judgment calls about classification, award coverage, or whether a particular allowance applies. That still relies on the person operating the system understanding the rules behind it.
This is where structured, up-to-date training makes a genuine difference — particularly for small business owners, bookkeepers, or HR generalists who've inherited payroll responsibilities without formal training in workplace law.
For anyone wanting to build that foundation properly, the Payroll Compliance Fundamentals Australia course from Australian Compliance Training is worth a look. It's built specifically around Australian award interpretation, classification, and compliance obligations — the exact areas where most underpayment errors actually originate. Rather than treating payroll as a purely mechanical task, it helps build the practical understanding needed to run payroll correctly and confidently, which ultimately protects both the business and its employees.
A Quick Scenario: How Small Gaps Become Big Problems
Consider a small retail business with twelve staff. The owner hired a casual employee three years ago at the correct award rate. Over time, that employee took on supervisory duties — opening and closing the store, handling minor staff issues, managing stock orders — but their classification and pay rate were never updated, because nothing in the payroll system flagged the change.
Three years later, during a routine review ahead of an unrelated audit, the discrepancy surfaced. The employee had effectively been performing a higher classification's duties without the corresponding pay rate, award allowances, or penalty entitlements being correctly applied. The back-payment, while not enormous in absolute dollar terms, still ran into several thousand dollars once superannuation and leave entitlements were recalculated.
Nothing about this situation involved dishonesty. It was simply a gap that nobody was actively checking for. That's the pattern worth remembering — underpayment usually isn't a single bad decision, it's an unchecked gap left open for too long.
Underpayment Risk Isn't Just an Australian Issue
While Australia's award system creates a particularly complex compliance environment, underpayment and wage theft concerns show up globally. Regulators in the UK, the United States, and across the EU have all increased scrutiny of payroll practices in recent years, often focusing on similar root causes: misclassification, outdated pay structures, and inadequate record-keeping.
The common thread, regardless of jurisdiction, is that payroll compliance isn't a "set it and forget it" function. It requires ongoing attention as roles, rosters, and regulations evolve.
Practical Checklist for Reducing Underpayment Risk
Pulling the key actions together, an effective payroll risk-reduction approach generally includes:
Confirming correct award coverage and classification at hiring and reviewing it whenever duties change, alongside scheduling regular (at minimum quarterly) internal payroll audits rather than waiting for an external trigger.
Beyond those two checkpoints, businesses should also stay across annual wage review changes, keep payroll software and award templates current, and invest in proper training for whoever is responsible for running payroll — whether that's an internal team member or an external bookkeeper.
Final Thoughts
Underpayment risk doesn't usually come from employers trying to cut corners. It comes from complexity, outdated processes, and gaps that nobody was specifically responsible for closing. The businesses that avoid these issues aren't necessarily the ones with the biggest payroll teams — they're the ones that treat payroll compliance as an ongoing responsibility rather than a once-a-year tick-box exercise.
If payroll compliance feels like a grey area in your business right now, that's usually a sign it's worth addressing before it becomes a costly one. Building genuine, practical knowledge of how Australian award and classification rules work is one of the most effective ways to close that gap.
The Payroll Compliance Fundamentals Australia course is a solid starting point for business owners, bookkeepers, and HR staff who want to get payroll right — not just react to problems after they've already cost money and trust.
