Alex is Sprintlaw’s co-founder and principal lawyer. Alex previously worked at a top-tier firm as a lawyer specialising in technology and media contracts, and founded a digital agency which he sold in 2015.
Running a small team often means juggling after-hours customer needs, maintenance issues or urgent call-outs. If you roster staff to be “on call” in New South Wales, it’s important to get the legal and payroll settings right from day one.
This guide breaks down what an on-call allowance is, when it applies, how it typically interacts with overtime and call-back payments, and the steps to set up a compliant, fair on-call system for your business.
We’ll keep it simple, focus on the employer’s perspective, and highlight the areas where a clear contract and policy can save you time, money and disputes.
What Is An On-Call Allowance In NSW?
An on-call (or standby) allowance is a payment to an employee who agrees to be available outside their ordinary hours to respond to work if needed. The allowance compensates them for restricting their personal time - even if they’re not actually called in to work.
It’s different to a “call-back” payment, which applies when the employee is actually required to perform work outside ordinary hours (for example, coming back to the workplace or logging in remotely to resolve an issue). In most awards, call-backs trigger minimum engagement periods and/or overtime rates, on top of any standby allowance already paid.
Key definitions you’ll see in awards and agreements:
- On-call/Standby: The employee must be reachable and ready to work if required.
- Call-back: The employee is directed to perform work after leaving the workplace (or outside rostered hours).
- Minimum engagement: A fixed minimum number of hours payable for a call-back, even if the job takes less time.
- Overtime: Higher pay rates that apply once ordinary hours are exceeded or work is performed outside the span of hours.
In NSW, on-call and call-back rules are mostly set by modern awards or enterprise agreements under the national Fair Work system. Your obligations will depend on the specific instrument that covers your employees.
When Do You Have To Pay An On-Call Allowance?
Whether you must pay a standby allowance (and how much) usually depends on the applicable modern award or an enterprise agreement. If your employees are award-free and on higher salaries, you still need to ensure their overall remuneration is sufficient to cover reasonable expectations for on-call duties and any overtime or call-backs that arise.
Awards And Enterprise Agreements
Most operational roles (trades, health, hospitality, clerical/admin, community services, IT, etc.) are covered by a modern award that sets minimums for standby, call-back, minimum engagements and overtime. For example, awards commonly state:
- A set allowance per on-call period (e.g. per night or per weekend day).
- Minimum call-back payments (often a minimum of 2-4 hours, even if the job takes less time).
- Higher rates for work performed during the call-back (overtime/penalty rates).
- Travel time and mileage if the employee must attend the workplace.
If your business operates under an enterprise agreement, check the exact clauses for standby and call-back - agreements may customise rates, notice, rostering and fatigue-protection rules.
If you’re unsure which instrument applies, it’s sensible to get advice before you lock in your on-call model. This is especially important if you rely on a small team and can’t afford unexpected payroll liabilities.
Standby Vs Call-Back Vs Remote Work
Some awards treat remote call-backs (e.g. logging into a system from home) differently to physical call-backs. Others treat both scenarios the same and still apply minimum engagement periods. The detail matters - it drives what you owe when a quick after-hours fix takes only 15 minutes.
Also consider rest breaks between shifts. If call-backs push an employee into late-night work, many instruments require a minimum break before the next shift or additional penalties if the break isn’t provided. Having a clear process for rescheduling or replacing the worker the next day helps you stay compliant.
How Do You Calculate On-Call And Call-Back Payments?
The calculation is typically a combination of three pieces: the standby allowance, the call-back minimum, and the rate for work actually performed. Your award or agreement will tell you the exact numbers and when each piece applies.
1) Standby Allowance
This is usually a fixed amount per period (for example, per night, per 24 hours, or per weekend day) while the employee is available and ready to respond. It’s payable regardless of whether you call them in.
2) Call-Back Minimums And Overtime
If a call-back happens, most instruments require a minimum payment (e.g. 2 hours). If the work extends beyond the minimum, normal overtime calculations then kick in. Some awards start the clock from the time the worker leaves home; others from when work begins. The applicable rate (time and a half, double time, etc.) will depend on the time of day and the total hours worked.
Where remote work is recognised, a shorter minimum may apply for remote call-backs. Check your instrument for the thresholds and reset rules (e.g. multiple call-backs within the minimum period often don’t trigger additional minimums).
3) Travel Time And Expenses
If the employee needs to attend the worksite, travel time may be payable. Mileage or vehicle allowances can also apply. Again, the award or agreement sets the rules.
Time Off In Lieu (TOIL) Instead Of Overtime?
Some instruments allow you to offer time off in lieu of paying overtime, but only if the award or agreement permits it and you record the arrangement properly. TOIL frameworks need to be clearly documented so you can manage accrual, expiry and approvals with minimal friction. If TOIL is part of your model, make sure your time in lieu processes align with your instrument.
Set Up Your On-Call System Legally (And Smoothly)
If on-call is new to your business, map out your model before anyone picks up a standby phone. A little planning avoids disputes and backpay risk.
Put It In The Contract
Spell out on-call expectations in the employment agreement, including eligibility, frequency, notice, pay components (standby allowance, call-back minimums, overtime), and how TOIL will operate if applicable. Where you need flexibility to vary arrangements, draft the clause carefully so changes are lawful and reasonable for the role.
If your current contracts are silent, update them before introducing on-call. Using a well-drafted Employment Contract helps you align contract terms with the award or your enterprise agreement - and makes changes easier to communicate.
Some businesses use total remuneration or “set-off” structures to simplify payroll. If you go down that path, ensure your approach is carefully drafted and compliant with award requirements around set-off clauses so minimum entitlements are always met.
Back It With A Clear Policy
Contracts set the baseline; policies guide day-to-day. A short on-call policy should cover rostering, response times, equipment and phone expectations, fatigue management, handover, and how to escalate recurring after-hours issues.
It’s often easiest to incorporate this into your broader Workplace Policy suite or staff handbook so managers and staff have one source of truth.
Roster With Compliance In Mind
Fair rostering is crucial for fatigue and morale. Keep clear records of who is on standby and when. Build in minimum time between shifts and plan for replacement coverage after late-night call-backs so you don’t inadvertently breach rest requirements.
Good rosters also reduce the number of call-backs by ensuring preventive maintenance and handovers happen during ordinary hours where possible. If you’re formalising rostering for the first time, review the legal requirements for employee rostering and embed them into your scheduling process.
Breaks And Fatigue Management
Frequent or late-night call-backs can push staff into long stretches without proper rest. Check your instrument for minimum break rules, and your WHS duties around fatigue. Rest rules are as much about safety as they are about pay. As a practical measure, managers should monitor patterns (e.g. repeated call-outs between 1am and 4am) and address root causes.
If your team works long shifts or variable hours, keep an eye on minimum breaks during the day too. A refresher on Fair Work breaks can help you calibrate policies and rosters in busy periods.
Track The Dollars (And The Minutes)
Implement a simple system to capture on-call periods, call-back start/finish times, travel time, and whether the call was remote or on-site. This drives accurate payroll and reduces disputes about minimum engagements.
If classifying time becomes complicated (e.g. multiple short remote call-backs), consistency and transparency are key. A short “how we pay on-call” guide in your intranet or policy pack helps everyone stay aligned.
Common Pitfalls (And How To Avoid Them)
Even well-run small businesses trip on these issues when introducing on-call arrangements:
- No contract clause covering on-call duties, which can make new expectations hard to enforce or pay arrangements unclear.
- Paying an allowance but overlooking call-back minimums or travel time that the award requires.
- Assuming salaried staff don’t have award entitlements. Many salaried employees are still award-covered.
- Unclear boundaries about response times, which leads to unpaid “drip-feed” of after-hours messages that are, in reality, work.
- Not managing fatigue - particularly after repeated late-night call-backs - which can raise WHS and performance issues the next day.
Most of these are solved by tightening contracts, aligning your policy with the instrument, and training managers to apply the rules consistently.
What About Overtime, Penalty Rates And Alternative Models?
On-call systems often sit alongside overtime and penalty rate rules for after-hours work. It’s perfectly normal for all three to apply in a single pay period, provided you follow your instrument’s calculation sequence.
Some employers try to reduce after-hours costs by improving handovers, rotating standby more fairly, or empowering on-call staff with better tools so issues are resolved faster. Others simplify remuneration by folding expected on-call time into a total remuneration package. If you consider that approach, get advice and ensure any “set-off” is clearly stated and that the employee still receives at least their minimum entitlements, including for actual call-backs.
When you are deciding whether to pay overtime or give compensating time off, remember TOIL only works if your award or agreement allows it and your records are watertight. For a broader refresher on overtime fundamentals, this overview of overtime laws for employers is a useful companion to your on-call setup.
Do You Need To Pay Super Or Withhold Tax On On-Call Payments?
Yes, standard payroll obligations apply. On-call allowances and call-back payments are typically ordinary assessable income. PAYG withholding, payroll tax (if thresholds are met), and reporting through Single Touch Payroll all continue as normal. Superannuation usually applies to call-back hours and often to allowances that are “earnings in respect of ordinary hours,” but the treatment can depend on the instrument and the nature of the payment.
Given the variations between awards and roles, run your model past your payroll advisor and make sure your payroll system has the correct pay codes for standby, call-back, overtime and travel.
Practical NSW Scenarios Employers Ask About
“Can I Ask A Part-Timer To Be On Call?”
Often, yes - if it’s permitted by the applicable award or agreement and is reasonable for the role. The arrangement should be documented in their contract and schedule. Part-time minima and agreed ordinary hours still apply; call-back work will usually be paid at overtime rates.
“Do We Still Pay The Standby Allowance If No Call-Back Happens?”
Yes. The on-call allowance compensates availability, not work performed. If there’s also a call-back, the call-back minimum and any overtime stack on top (subject to the instrument’s rules).
“If A Call Takes 20 Minutes, Do We Still Pay A Minimum?”
Usually, yes. Many instruments require a minimum engagement (e.g. 2 hours) for each call-back. Some have specific rules for remote call-backs, but a minimum often still applies. Check the exact wording in your award or agreement.
“Can On-Call Be A Contractor Arrangement Instead?”
Be careful. If someone works in your business like an employee, they’re likely an employee at law. Misclassifying a worker can create backpay and penalty risks. If you truly need independent expertise without employment obligations, use a proper services agreement and review your classification carefully.
“Should We Write A Standby Roster Or Keep It Ad Hoc?”
A written roster is better. It helps with compliance, fatigue management and fairness across your team. It also gives you a defensible record if disputes arise later. If you’re formalising this process, ensure your approach aligns with paying employees on call under the relevant instrument and your workplace policy settings.
Essential Documents To Support Your On-Call Model
Solid paperwork turns a good on-call idea into a smooth system. At minimum, consider:
- Employment Contract: Include clear on-call clauses (eligibility, frequency, pay, call-back rules, TOIL and rostering). If you’re updating or hiring, use a tailored Employment Contract template that aligns with your award or agreement.
- Workplace Policy: A practical guide covering standby conduct, equipment, response time expectations, fatigue management and escalation. This can sit within your broader Workplace Policy suite.
- Rostering Procedure: A simple process for publishing on-call rosters, swapping shifts, and confirming coverage. Align this with the legal requirements for rostering.
- Overtime/TOIL Procedure: Short, written rules for approvals, accrual and redemption of TOIL (if allowed) so managers apply it consistently and fairly across the team. Keep this consistent with your overtime obligations.
Implementation Checklist For NSW Employers
- Identify the applicable award or verify your enterprise agreement settings for standby, call-back, minimums, overtime and travel.
- Map the operational need: which roles will be on-call, how often, and what scenarios trigger call-backs.
- Draft contract clauses (or update existing contracts) to reflect the legal and practical settings.
- Publish a short, accessible on-call policy and train managers on how to apply it.
- Build a fair roster, monitor fatigue, and document rest arrangements after late call-backs.
- Configure payroll codes for standby, call-back, overtime, travel and TOIL, and test with a pilot roster.
- Set up simple record-keeping: who’s on standby, when, and exact call-back times and travel.
- Review the model after the first month and adjust to reduce unnecessary call-backs.
Key Takeaways
- On-call allowance compensates availability; call-back and overtime payments usually sit on top when work is performed.
- Your award or enterprise agreement sets the rules - rates, minimum engagements, travel time and rest breaks vary by instrument.
- Put expectations in writing: use a tailored Employment Contract and a practical on-call policy so managers and staff are on the same page.
- Rostering, fatigue management and accurate time records are just as important as getting the pay codes right.
- Consider TOIL only if your instrument allows it and your processes for accrual and approvals are tight and transparent.
- A short setup project now (contracts, policy, payroll, roster) will save disputes and backpay risk later.
If you’d like a consultation about setting up on-call arrangements in your NSW business, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.








