A payroll error can start with something as small as a missed allowance on a Friday pay run. Left unchecked, it can become an underpayment, an unhappy employee, corrected STP reporting and a significant amount of time spent putting records back in order. The top payroll mistakes employers make are rarely deliberate. They usually happen when a busy business relies on outdated settings, informal processes or assumptions about an employee’s entitlements.
For Gippsland employers, payroll has to work alongside the practical demands of running a factory, medical practice, trade business, shop, transport operation or cleaning team. Getting it right means employees are paid correctly and on time, while PAYG withholding, superannuation and ATO reporting are kept under control.
1. Using the wrong award, classification or pay rate
Modern awards are detailed for a reason. They set minimum pay rates and conditions for many employees, including classifications, overtime, penalty rates, allowances, breaks and rostering arrangements. Applying the wrong award, or placing an employee in the wrong classification, can mean the base hourly rate looks correct while the total pay is not.
This often affects businesses with varied roles. A retail employee who also supervises a shift, a tradesperson who works away from the usual site, or a cleaner working evening hours may have entitlements that differ from a standard weekday rate. Enterprise agreements, annualised salary arrangements and individual flexibility arrangements can add another layer.
Check the applicable industrial instrument when a person starts, changes duties, receives a pay rise or begins working different hours. Award rates also change, so payroll settings need a scheduled review rather than a once-only set-up.
2. Treating casual loading as the whole answer
Casual employees are generally paid a loading instead of receiving paid annual leave and personal leave. That does not mean every other entitlement disappears. Casual staff may still be entitled to penalty rates, overtime, allowances, superannuation and paid long service leave under the relevant state rules when eligible.
A common error is loading a casual employee’s base rate by 25 per cent and assuming this covers every additional payment. It may not. The award needs to be read as a whole, particularly where shifts involve weekends, public holidays, split shifts or early starts.
Keep clear records of the engagement type, rostered hours and actual hours worked. This is especially useful where a casual’s work pattern becomes regular over time and questions arise about their employment status or entitlements.
3. Misclassifying workers as contractors
Paying someone against an ABN does not automatically make them an independent contractor. The real working arrangement matters. Factors can include who controls the work, whether the worker can delegate tasks, who supplies equipment, how they are paid and whether they operate an independent business.
Misclassification is a particular risk for builders, transport operators, cleaning businesses and professional services that engage people for specific jobs. A contractor may still trigger superannuation obligations in some circumstances, even if they invoice for their work. PAYG withholding, workers compensation and other obligations may also need consideration.
Before bringing on a regular contractor, document the arrangement properly and review how it works in practice. The label on the agreement should match the operational reality, not simply the preferred payment method.
4. Calculating overtime, allowances and leave incorrectly
Payroll is not just hours multiplied by a rate. Depending on the award or agreement, employees may be entitled to overtime, meal allowances, travel allowances, tool allowances, higher duties payments or shift loadings. Small errors repeated across a team can quickly become material.
Leave calculations deserve the same attention. Annual leave loading may apply for some employees, personal leave must be tracked accurately, and public holiday treatment depends on the employee’s work pattern and industrial instrument. For employees on annual salaries, employers still need to ensure the salary is sufficient to cover the award entitlements actually worked over the relevant period.
Reliable timesheets are the starting point. Make sure supervisors understand what must be recorded, including start and finish times, breaks, travel and call-outs. A payroll system cannot correct incomplete source information.
5. Getting PAYG withholding and deductions wrong
Employees need to complete the right tax file number declaration and withholding information, and payroll software must apply it correctly. Errors can occur when an employee claims the tax-free threshold in the wrong place, has a HELP debt, changes residency status, or asks for an additional amount to be withheld.
Voluntary deductions need care too. Whether the deduction is for a staff purchase, a loan repayment, a union fee or salary sacrifice, employers need proper authority and must ensure the arrangement is lawful. Deductions cannot reduce an employee below their minimum entitlement.
Salary sacrificing superannuation is often worthwhile for employees, but it needs to be structured correctly. It should be agreed before the relevant pay is earned, shown clearly in payroll records and not used to reduce the employer’s own super guarantee obligation.
6. Making superannuation an afterthought
Super is one of the most costly areas to correct after the fact. Employers need to calculate super guarantee on the right earnings base, apply the current rate and pay into the employee’s nominated complying fund or stapled fund where required. Since 1 July 2025, the super guarantee rate has been 12 per cent.
The details matter. Some payments, such as ordinary time earnings, are generally included, while treatment of overtime and certain allowances can differ. New employees must be offered a choice of fund where required, and fund information needs to be handled promptly so contributions are not delayed.
Payment timing is equally important. Super obligations have traditionally included quarterly due dates, but payment-frequency requirements can change. Employers should keep their process aligned with the current rules, allow for clearing-house processing time and retain confirmation that contributions have been received. Paying late can lead to the super guarantee charge, which is more than simply catching up the unpaid amount.
7. Lodging STP late or failing to finalise correctly
Single Touch Payroll reporting gives the ATO and employees visibility of wage, tax and super information during the year. Each pay event should be reported accurately and on time, including corrections where needed. A payroll file that does not reconcile to the general ledger, bank payments and PAYG activity statement is a warning sign worth investigating early.
At year-end, employers must finalise employees through STP so their income statement is marked tax ready. This is not an administrative detail to leave until the last minute. Incorrect finalisation can delay an employee’s tax return and create extra work for the business when figures need amendment.
Build a monthly reconciliation into the payroll calendar. Compare gross wages, PAYG withheld, salary sacrifice, super liability and net pay against the accounting records. It is much easier to correct a discrepancy in the month it occurs than after 12 months of reporting.
8. Issuing incomplete payslips or keeping poor records
Payslips must contain required information and be issued within one working day of pay day. They should make it clear what the employee was paid for, including the pay period, gross and net amounts, deductions, hours where relevant, rate of pay and superannuation information.
Poor records can turn a manageable query into a difficult dispute. Employers generally need to keep employee and wage records for seven years. Store timesheets, leave balances, super records, pay-rate changes and written employment terms in an organised system that can be accessed when needed.
This is particularly valuable when a manager leaves, a payroll officer changes roles or a business moves to new software. Good records protect both the employer and the employee by showing what was agreed, worked and paid.
9. Forgetting payroll at termination or during major changes
A resignation, redundancy or dismissal requires more than removing someone from the next pay run. Final pay may include outstanding wages, accrued annual leave, notice, redundancy pay or other amounts depending on the circumstances. Incorrect treatment of unused leave can also affect withholding.
Business changes create similar risks. Acquiring a business, moving staff between entities, changing payroll software or introducing a new roster can affect leave records, award settings, STP reporting and super data. Give payroll a place in the planning process before the change goes live.
A practical way to stay ahead of payroll errors
A good payroll process has clear ownership, current employee records and a regular review point. It does not need to be complicated, but it does need to be consistent. Review award settings at least annually, reconcile payroll each month and investigate unusual results before lodging BAS or finalising STP.
If a pay arrangement is unclear, seek advice before processing it rather than trying to repair it after an employee raises a concern. Tax and Accounting Solutions Gippsland can help employers bring payroll records, STP reporting, PAYG withholding and superannuation administration into a clear, manageable routine. The right support gives business owners more confidence to focus on the work and people that keep their operation moving.