Full-Time vs Part-Time Employees: Key Legal Differences for Employers

If you’re hiring (or re-structuring) your team, one of the first decisions you’ll face is whether a role should be full time or part time. On paper, it can seem like it’s “just hours”. But in practice, the full-time vs part-time distinction can flow into pay, leave, rostering, flexibility, and termination processes.

For small businesses, getting this classification right matters. It helps you budget properly, avoid payroll and leave surprises, and reduce the risk of disputes down the track (including Fair Work claims).

Below, we break down the key legal differences between full-time and part-time employment in Australia in a practical way, with a focus on what employers need to set up correctly from day one.

What’s The Difference Between Full Time And Part Time Employment?

At a high level, the difference between full time and part time employment comes down to ordinary hours and how those hours are agreed and recorded. Both are permanent employees (unlike casuals), but the hours and some entitlements are calculated differently.

Full-Time Employees (In Plain English)

A full-time employee usually works the “standard” full-time hours for your workplace. For many Australian workplaces, that’s often around 38 hours per week (plus reasonable additional hours where applicable).

Full-time employees generally have:

• regular and ongoing hours
• paid annual leave and paid personal/carer’s leave
• notice requirements if their employment ends (unless serious misconduct)
• other entitlements under the National Employment Standards (NES) and any applicable Modern Award or enterprise agreement

Part-Time Employees (In Plain English)

A part-time employee is also a permanent employee, but works less than full-time hours. Their hours should still be reasonably predictable and agreed (for example, 3 days per week, or specific shifts on set days).

Part-time employees generally receive the same types of entitlements as full-time employees, but many are calculated pro rata (proportionately) based on hours worked.

As an employer, you should be careful not to treat a part-time arrangement like a casual arrangement. Variable hours can exist under different employment types, and the correct classification will depend on the reality of the relationship (including any firm advance commitment to ongoing work) as well as any applicable Modern Award or enterprise agreement. If you’re regularly rostering “as needed” without an agreed pattern, it may be a sign your arrangements need a closer look to ensure you’re classifying and paying employees correctly.

Full Time Vs Part Time Hours: What Counts As “Ordinary Hours”?

One of the most common questions we see is: what is the difference between part time and full time hours?

The answer depends on a few layers of rules:

• National Employment Standards (NES) (which apply to most employees in Australia)
• Modern Awards (industry/role-based rules that can set minimum hours, rostering rules, overtime triggers, and more)
• the employment contract (which should clearly set the agreed ordinary hours and work pattern)

Why This Matters For Employers

When “ordinary hours” are properly set, it becomes easier to:

• calculate overtime and penalty rates correctly
• approve and track leave accurately
• avoid misunderstandings about availability and rostering
• manage performance and capacity (especially when business demand fluctuates)

If you’re unsure whether a role should be full time or part time, it’s often worth checking the applicable Modern Award first, because some Awards have specific rules about minimum part-time engagements and how part-time hours must be agreed (for example, in writing, with a set roster pattern).

Pay And Leave Entitlements: How Full Time And Part Time Differ

The full-time and part-time difference shows up most clearly in leave calculations. Both full-time and part-time employees generally receive paid leave entitlements under the NES, but part-time leave is usually pro rata.

Annual Leave

Both full-time and part-time employees are generally entitled to 4 weeks of paid annual leave per year (under the NES), but for part-time employees this is based on their ordinary hours.

In other words:

• A full-time employee accrues annual leave based on full-time ordinary hours.
• A part-time employee accrues annual leave based on their part-time ordinary hours (pro rata).

Also keep in mind that many businesses need to manage annual leave loading correctly where it applies. If you’re reviewing your payroll processes, it can help to check how annual leave loading works for employees covered by certain Awards.

Personal/Carer’s Leave (Sick Leave)

Paid personal/carer’s leave (often called sick leave) also accrues for both full-time and part-time employees, generally at 10 days per year, but again it’s based on ordinary hours.

For a part-time employee, “10 days” doesn’t mean “10 x 7.6-hour days”. It means the employee accrues an entitlement equivalent to their ordinary hours over a 10-day period.

This distinction is important when approving sick leave. A part-time employee who usually works 5-hour shifts will typically be paid 5 hours for a sick day taken on a day they were rostered to work (not a full-time day).

Public Holidays

Public holiday pay can be a common trap for small businesses, especially where part-time work patterns are involved.

Generally, if a public holiday falls on a day a part-time employee would ordinarily work, they may be entitled to be paid for those ordinary hours (subject to any Award rules and the reasonableness of any request to work).

This is another reason it’s helpful to have a clear written part-time schedule or agreed pattern of hours.

Superannuation

Full-time and part-time employees are generally entitled to superannuation contributions. In most cases, if an employee is paid $450 or more (before tax) in a calendar month, you must pay super for them (including many part-time employees). From 1 July 2022, the $450 monthly threshold was removed for most employees, meaning employers generally need to pay super regardless of how much an employee earns (subject to limited exceptions, such as some under-18 employees who work 30 hours or less per week).

If you’re building an offer package, it’s also important to be clear about whether a salary figure is inclusive or exclusive of super. This is a frequent source of misunderstandings, so many employers find it helpful to align internal wording with common guidance around whether salaries include superannuation.

Rostering, Flexibility And Shift Changes: Practical Differences For Small Businesses

For many employers, the “full time vs part time” decision is really about flexibility. But flexibility needs to sit within a compliant framework - especially if your staff are covered by a Modern Award.

Part-Time Patterns Should Usually Be Set (Not Random)

A common compliance issue is using part-time employment for people whose shifts are actually variable week to week.

Many Modern Awards require part-time employees to have:

• an agreed number of minimum hours per week (or per roster cycle)
• set days of work and/or start and finish times
• a written record of the agreed pattern, and rules about how it can be changed

If you regularly change a part-time employee’s shifts without following Award notice rules, you may create underpayment risks (for example, overtime or penalties that should have been paid).

Notice For Shift Changes And Cancellations

Whether an employee is part time or full time, you’ll want a clear process for roster changes and cancellations - and you’ll need to consider Award terms and any contract terms you’ve agreed to.

If you’re reviewing your internal approach, it can be useful to cross-check common compliance issues around minimum notice for shift changes and having a clear shift cancellation policy that aligns with Fair Work requirements.

Overtime And Penalty Rates

Overtime triggers can be different depending on:

• the relevant Modern Award
• whether the employee’s additional hours are “reasonable”
• how the employment contract describes ordinary hours and additional hours

Full-time employees may work additional hours more regularly, but those hours can still attract overtime depending on Award rules and the employee’s classification level.

Part-time employees can also be entitled to overtime or penalty rates if they work outside their agreed part-time pattern, again depending on the Award.

Contracts And Policies: What You Should Put In Writing

If you want to avoid confusion about the difference between part-time and full-time work, the most practical step is to document the arrangement properly.

A well-drafted employment contract is not just a formality - it’s one of your key risk-management tools as an employer.

What Your Employment Contract Should Cover

Whether the role is full time or part time, your contract should clearly address:

• Employment type (full-time or part-time)
• Ordinary hours (including the agreed pattern for part-time employees)
• Pay (hourly rate or salary, and when it’s paid)
• Overtime and penalty rates (and how these are handled where applicable)
• Leave entitlements (and any additional entitlements you offer)
• Probation (length, review process, and expectations)
• Termination (notice periods and process, consistent with the NES)
• Confidentiality and other protective clauses (where appropriate)

For most small businesses, it’s a good idea to use a tailored Employment Contract that matches your Award obligations and your operational reality (rather than trying to retrofit a generic template).

Workplace Policies To Support Your Contracts

Contracts set out the legal relationship, but policies help you run the workplace day-to-day. Depending on your team and industry, you might consider policies around:

• rostering and availability
• leave requests and evidence requirements
• performance management and conduct
• privacy and appropriate use of business systems

Even if you only have a small team, clear policies can reduce misunderstandings and help you respond consistently when issues arise.

Ending Employment: Notice, Redundancy And Other Risk Areas

Another place the difference between full time and part time matters is when employment ends.

Both full-time and part-time employees are permanent employees, which usually means they have stronger minimum protections than casual employees - including notice of termination and, in some cases, redundancy pay (subject to eligibility).

Minimum Notice Of Termination

When you terminate a permanent employee (full time or part time), you generally need to provide:

• notice of termination (based on the NES, and potentially more under an Award or contract), or
• payment in lieu of notice if you want the employment to end immediately

Notice periods can also become more complex if there are issues like misconduct, performance management, or Award-based disciplinary steps. Getting the process right matters just as much as having a valid reason.

Redundancy Considerations

If you no longer require a role to be done by anyone (for example, due to downturn, restructure, or automation), you may be looking at redundancy. In many cases, permanent employees may be entitled to redundancy pay if they meet the criteria (and your business is not exempt).

Because redundancy is one of the highest-risk areas for small businesses, it’s worth getting advice early - especially if you’re changing someone from full time to part time as part of a restructure, or reducing hours. A change to hours can sometimes trigger a dispute if it’s not handled as a genuine agreement variation (or if consultation obligations apply under an Award).

Changing Hours Or Employment Status

Businesses change - and sometimes you need roles to change too. But you should be careful about:

• unilaterally reducing hours for a full-time employee
• moving a full-time employee to part-time without genuine agreement
• making changes that conflict with Award consultation requirements

A safer approach is usually to document any variation properly, confirm the new hours and pattern in writing, and ensure payroll and leave accrual settings are updated.

Key Takeaways

• The full-time vs part-time distinction is about more than hours - it affects leave accrual, rostering rules, overtime triggers, and termination risk.
• Full-time employees usually work standard full-time ordinary hours, while part-time employees work less than full-time hours but should generally have an agreed, predictable pattern.
• Part-time employees generally receive the same types of entitlements as full-time employees, but many are calculated pro rata based on ordinary hours.
• Modern Awards can set specific rules for part-time work patterns, minimum engagements, and notice requirements for roster changes.
• A clear written employment contract is one of the best ways to reduce confusion and disputes about hours, pay, leave, and overtime.
• When ending employment, both full-time and part-time employees usually have notice entitlements, and redundancy issues can arise depending on the situation.

This article is general information only and does not constitute legal advice. For advice tailored to your business and workforce, talk to a lawyer.

If you’d like help setting up your team with the right Employment Contract and compliant processes, contact Sprintlaw on 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.