Managing overtime and additional hours is part of running a growing business. When a big order hits or you’re short-staffed, asking your team to stay back can feel unavoidable.
But overtime is tightly regulated in Australia. If you’re not across the rules, even well‑intentioned rostering can lead to underpayments, fatigue risks or disputes.
In this guide, we’ll walk through what counts as overtime, when additional hours are “reasonable,” how rates and time off in lieu work, and the practical steps to stay compliant. The aim is to help you make confident, lawful decisions about extra hours while protecting your people and your business.
What Counts As Overtime Or Additional Hours?
Overtime isn’t just “any time after 5pm.” The trigger depends on the relevant industrial instrument (an award or enterprise agreement), the employee’s classification (full‑time, part‑time, casual) and how you roster and approve hours.
Common Overtime Triggers
- Hours worked beyond the employee’s ordinary hours (often 38 per week for full‑timers, plus reasonable additional hours).
- Exceeding daily or shift limits set by the award (for example, more than a set number of hours per day, or outside a defined span of hours).
- Part‑timers working beyond their agreed hours (unless varied properly) can attract overtime under many awards.
- Casuals may not earn “overtime” in the same way, but many awards pay overtime-like rates once certain thresholds are exceeded (on top of the casual loading).
Overtime and “additional hours” aren’t always the same thing. “Additional hours” usually means hours beyond the ordinary pattern but still within what’s considered reasonable under the Fair Work Act. Whether those extra hours attract overtime rates will often be determined by the applicable award or agreement.
If you’re new to this area, start by reviewing the overtime laws that apply to your employees’ classifications and industry award.
Maximum Hours And “Reasonable” Additional Hours
The Fair Work Act includes a national employment standard that caps ordinary hours at 38 per week for full‑time employees (pro‑rated for part‑timers), plus reasonable additional hours.
There’s also guidance on maximum weekly hours and how to assess whether extra hours are reasonable. Reasonableness is not a guess - it’s based on factors like:
- Any health and safety risks from working the extra hours.
- The employee’s personal circumstances (e.g. family responsibilities).
- How much notice you gave, and how much notice they gave if they couldn’t work the hours.
- Whether the employee is paid overtime or receives another compensation (such as TOIL or a penalty rate).
- The needs of the workplace or enterprise at the time.
- The employee’s role and level of responsibility.
- Any patterns of work (including typical averaging arrangements).
On top of weekly limits, many awards and agreements include daily caps and span-of-hours rules. It’s good practice to check both weekly caps and per day limits before approving extended shifts.
How Overtime Rates, Penalty Rates And TOIL Work
Paying correctly is central to compliance. The rates that apply depend on the industrial instrument and the time the hours are worked.
Overtime Rates
Overtime rates are typically higher than ordinary rates (for example, time and a half or double time) and may increase the more overtime someone works in a day or week. Many awards also specify overtime rates for weekend or public holiday overtime work.
Penalty Rates
Penalty rates usually apply for ordinary hours worked at “unsociable” times, like weekends, public holidays, late nights or early mornings, depending on the award. These are separate to overtime rates. Some shifts might attract both, but it depends on the instrument. If in doubt, compare the rules on penalty rates with your award’s overtime triggers.
Time Off In Lieu (TOIL)
Instead of paying overtime, many awards allow you and an employee to agree to Time Off In Lieu (TOIL). This is where the employee takes paid time off rather than receiving an overtime payment. TOIL must be genuinely agreed, recorded properly and taken within the timeframes set by the award - otherwise, you may still need to pay the overtime amount.
Make sure your process aligns with the relevant award rules for Time off in lieu (TOIL), including how you keep records of the agreement and when TOIL must be taken or paid out.
Casual Employees
Casuals usually receive a loading in lieu of certain entitlements. However, they can still be entitled to overtime or penalty rates in many circumstances once they exceed award-defined thresholds or work at certain times. Always check the casual clause and overtime provisions in your award before rostering casual employees into long or late shifts.
Awards, Rostering And Breaks: Practical Compliance Tips
Awards and enterprise agreements set the nuts and bolts: ordinary hours, spans, minimum breaks, notice of roster changes, and overtime triggers. A few practical steps can reduce risk and keep things running smoothly.
Use Clear Pre‑Approval Processes
Have a simple, written process for authorising overtime. This avoids “unapproved overtime” surprises and helps you control costs. If an employee works unapproved overtime, you may still need to pay it, so the better approach is to manage approval upfront.
Build Compliant Rosters
- Respect ordinary hours and spans in your award when building rosters.
- Give the required notice for roster changes under your instrument.
- Track average hours over the relevant period if your award allows averaging.
Protect Health And Safety
Fatigue risk increases with long or irregular hours. Factor in safe shift lengths, adequate turnaround time between shifts and mandated meal and rest breaks. This is about legal compliance and looking after your people - tired workers are more likely to make mistakes or get injured.
Keep Accurate Records
Time and wages records must be correct and up to date. Use a system that captures start/finish times, breaks and overtime approvals. This is essential if a dispute ever arises or you’re audited.
Breaks Still Matter
Even when business is busy, meal and rest breaks must be scheduled and taken as required by the award or agreement. Failing to provide breaks can convert hours into overtime, trigger penalties, and raise safety issues. If you’re reviewing your breaks policy, it’s worth cross‑checking your award and your obligations around rest and meal breaks.
Salaries, Set‑Off Clauses And Annualised Wages
Paying an “all‑in” salary doesn’t automatically cover overtime. You still need to ensure the employee is better off overall compared with their award entitlements across each pay period or as required under the award’s annualised wage provisions.
Employment Contracts
Your Employment Contract should explain how ordinary hours, overtime and TOIL are managed, how hours are requested and approved, whether there’s an annualised wage arrangement, and how record‑keeping and reconciliation work.
Set‑Off Clauses
Well‑drafted set‑off clauses can help you credit above‑award salary payments against specific award entitlements (like overtime or penalties), but only if they’re properly drafted and applied. Poorly worded clauses won’t protect you from underpayment claims. Review how your set‑off clauses operate alongside your award to make sure they do what you intend.
Annualised Wage Arrangements
Some awards allow annualised wage arrangements with strict requirements for record‑keeping, written agreements and regular reconciliations. If your award has these provisions, make sure you’re following the steps precisely. If not, you may need to keep paying overtime and penalties in the usual way.
Part‑Time, Casual And Shift Work: Common Scenarios
Not every team works a 9-5. Here are scenarios that commonly cause confusion.
When part‑timers work beyond their agreed hours, many awards require overtime rates unless there’s a proper variation of hours in line with the award. Get written variations in advance where your award requires it, and keep those records with your rosters.
Casuals On Long Shifts
Casuals receive a loading, but that doesn’t automatically replace overtime or penalties. If a casual exceeds daily or weekly thresholds, or works late nights, weekends or public holidays, your award may require overtime rates or penalties on top of the loading.
Night And Weekend Work
These hours usually attract penalty rates for ordinary hours, and may attract overtime rates if they’re outside the span of ordinary hours or exceed daily/weekly caps. Always check your award’s provisions on night loadings and weekend rates when you plan shifts.
Public Holidays
Public holiday work often attracts higher penalty rates. If an employee then exceeds daily or weekly thresholds, overtime may also apply. Document the basis for any higher rate you pay (penalty versus overtime) to support accurate payroll and future audits.
Approving, Calculating And Paying Overtime Correctly
Once overtime is triggered, getting the calculation right is key. Here’s a practical framework.
1) Confirm The Trigger
Check whether the hours are beyond the ordinary daily or weekly limits, outside the span of hours, or otherwise meet your award’s overtime trigger. Be careful with part‑time variation rules and casual thresholds.
2) Apply The Right Rate
Use the award’s overtime table and consider time‑of‑day and day‑of‑week rules. Check whether penalty rates also apply for the period, and how your award handles overlaps.
3) Consider TOIL (If Available)
If TOIL is permitted under your instrument and the employee agrees, record the agreement and track the TOIL accrual and when it’s taken. If it’s not taken within the award’s timeframe, you’ll likely need to pay it out at the correct overtime rate.
4) Record Everything
Keep copies of approvals, timesheets, roster changes and TOIL agreements. This helps you reconcile annualised wages (if applicable) and demonstrate compliance if questioned later.
5) Pay On Time
Pay overtime in the employee’s normal pay cycle unless your instrument sets a different requirement. If you discover an error, correct it as soon as possible and document the fix.
Policies, Processes And Training: Setting Your Business Up For Success
Clear rules make overtime easier to manage day to day. Consider implementing:
- An overtime approval policy (who can approve, how to request, and how many hours can be approved at each level).
- A TOIL procedure (template agreement, accrual tracking, and deadlines for taking TOIL).
- Rostering and breaks guidelines aligned with your award or agreement.
- Manager training on interpreting awards, overtime triggers and scheduling safely.
- Payroll checks and periodic internal audits to catch issues early.
Investing in these basics now helps prevent costly backpay claims later and supports a healthier, safer workplace.
Avoiding Common Overtime Pitfalls
Even with the best intentions, a few missteps come up again and again. Keep an eye out for these:
- Assuming a salary covers everything without checking award comparisons or annualised wage rules.
- Letting “unapproved overtime” slide without paying it - if it’s worked, it may still be payable.
- Not updating part‑time agreements when patterns change, which can turn extra hours into overtime.
- Skipping or shortening breaks during busy periods, which can create safety issues and non‑compliance.
- Inconsistent roster practices across managers, leading to uneven compliance and morale problems.
- Weak record‑keeping, which makes it difficult to prove compliance in a dispute or audit.
Key Takeaways
- Overtime is governed by the Fair Work Act and your award or agreement - know the triggers for daily, weekly and span‑of‑hours limits before approving extra time.
- Reasonable additional hours are allowed, but you must consider health and safety, notice, compensation and personal circumstances when assessing “reasonableness.”
- Pay correctly by applying the right overtime or penalty rates, and use TOIL only where the award permits it and you’ve recorded a compliant agreement.
- Salaries and set‑off clauses don’t automatically cover overtime - ensure your contracts, annualised wage arrangements and reconciliations are watertight.
- Part‑time and casual arrangements have specific rules; variations, thresholds and weekend or night rates can change the calculation significantly.
- Strong policies, approval processes, accurate records and manager training are your best defence against underpayment risks and disputes.
If you’d like a consultation on managing overtime and additional hours in your workplace, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no‑obligations chat.
