Changing Employee Status from Full-Time to Part-Time: Employer’s Legal Guide

If you’re running a business in Australia, there may come a time when you or your employees start thinking about changing from full time to part time working arrangements. Perhaps an employee needs more flexibility for family, study, or lifestyle reasons. Maybe your business is restructuring or roles are evolving. Whatever the reason, making changes to employment status involves more than just adjusting the roster or reducing hours - there are crucial legal and practical steps you need to follow to do it correctly.

Shifting an employee from full time to part time work can bring benefits for both parties, but it also raises questions about entitlements, contracts, and communication. There are Fair Work obligations to consider, industry award requirements, and the risk of an incorrect process ending up as a costly dispute. The good news? With the right planning and professional guidance, you can manage the change smoothly - keeping your business compliant and your team happy.

In this guide, we’ll walk you through the key legal requirements and best practices around changing an employee’s status from full-time to part-time. Whether you’re weighing up the differences between full time and part time, working through the paperwork, or looking for ways to support a positive transition, we’re here to help you navigate every step.

What’s the Difference Between Full-Time and Part-Time Employees?

Before making the change, it’s important for employers to understand the core differences between full time and part time work in Australia. While both forms of employment are covered by the Fair Work Act 2009 and National Employment Standards (NES), there are several distinctions that affect employee entitlements, hours, and contracts.

• Hours of Work: Full-time employees usually work 38 hours per week (plus reasonable additional hours as needed), while part-time employees work less than 38 hours per week on a regular, ongoing basis. Exact hours are typically set by the relevant modern award or enterprise agreement.
• Benefits and Leave: Full-time and part-time employees both accrue paid annual leave, sick leave, and other NES entitlements, but part-time is calculated pro rata - based on the number of hours they work compared to a full-time employee.
• Employment Contract: The contract should clearly state whether the role is full-time or part-time, the number of hours usually worked, any applicable overtime or penalty rates, and how changes can be made.
• Job Security: Both full or part time employees have ongoing, permanent employment unless otherwise specified (such as fixed-term or casual). Part-time employees are different from casuals - they have predictable hours and are entitled to benefits like paid leave.

If you’d like a deeper dive into these distinctions, our guide to the difference between casual and part time employment is a great place to start.

Why Might an Employer or Employee Want to Change from Full-Time to Part-Time?

Employers and employees might seek to convert a full-time role to part-time for a number of reasons:

• The employee requests more flexibility to manage caring responsibilities, study, health, or lifestyle.
• Business needs change - perhaps there’s less demand or a restructure, so the work doesn’t require full-time hours.
• To help an employee phase toward retirement.
• To accommodate parental leave returns or long-term illness or injury.

It’s important to approach these conversations openly and collaboratively. If you’re responding to an employee’s request, the Fair Work Act protects your employee’s right to request flexible working arrangements, which includes reduction to part-time hours in some situations.

What Are the Legal Steps for Changing an Employee’s Status?

Changing someone’s employment status from full time to part time isn’t as simple as just changing their roster. There’s a legal process to ensure the change is genuine, consensual, and reflected correctly in your records and contracts.

1. Genuine Agreement Is Required

The most important rule is agreement. While an employee can propose or agree to a shift from full time to part time, you cannot unilaterally impose this change unless you have a clear contractual right or you are engaged in a genuine, lawful redundancy situation. For most employers, this means:

• Discussing the change openly with your employee.
• Explaining any new expected hours, role duties, and any changes to pay, benefits, or conditions.
• Documenting the agreement in writing and asking the employee to sign their consent (usually as a contract variation).

Keep in mind: If you force a change on the employee without their agreement, you risk claims for constructive dismissal or breaches of award/Fair Work obligations.

2. Update the Employment Contract

The change should be recorded through either a new Employment Contract or a contract variation letter. This should set out:

• The new part-time hours (per week and per day, if possible).
• The days worked.
• How overtime, penalty rates or extra hours will be handled.
• Any changes in pay or pro rata leave calculations.
• The date the new arrangement begins.

This updated contract will protect both parties and make sure everyone’s expectations are clear from the start.

3. Notify Payroll and Update Records

Once you have agreement and a signed contract, update your payroll and HR records to reflect the change to part-time. Make sure you adjust annual leave and sick leave accruals to be pro rata, and review your obligations around superannuation and other benefits.

4. Check Award or Enterprise Agreement Rules

Many industries in Australia are governed by specific modern awards that have additional requirements for changing hours or moving between part time and full time. For example, some awards require a minimum number of guaranteed hours for part-time workers, set notice periods, or consultation with affected employees.

Always check the relevant award or enterprise agreement for your sector, and follow any extra consultation, notice, or record-keeping requirements that may apply.

How Do Full Time vs Part Time Hours and Benefits Compare?

For many employers, one of the big questions is how the shift from full time to part time will affect the employee’s hours, pay, and benefits.

• Hours: Part-time roles must have regular, predictable hours that are less than a full-time employee. These hours should be agreed in writing, and changes to days or hours usually require mutual agreement.
• Pay: Part-time employees are paid the same hourly rate as their full-time counterparts (as set by the relevant award or contract), but they only get paid for the hours they actually work.
• Leave: Paid annual leave and personal (sick) leave accrue on a pro rata basis - for example, if a full-timer works 38 hours and a part-timer 19 hours, the part-timer will accrue half as much paid leave.
• Public Holidays: Part-time staff who would normally work on the public holiday get paid for the day; if the holiday falls on a non-rostered day, there's no entitlement.
• Job Security: Part-time employees retain ongoing (“permanent”) status - unlike casuals, they do not receive casual loading but benefit from paid leave and notice of termination.

For more details, we cover part time vs full time hours and entitlements in our dedicated article.

What Are the Risks If You Don’t Follow the Correct Process?

If a business tries to shift someone from full time to part time incorrectly - such as unilaterally reducing their hours, or failing to provide enough documentation - there are real risks, including:

• Unfair dismissal claims if the employee is forced out or their role is fundamentally changed without consent.
• Breach of award or NES rules, potentially leading to penalties or back pay.
• Employment contract disputes, leading to legal costs or even reinstatement orders.
• Damaged trust and workplace culture issues.

If you’re at all unsure about how to legally handle a transition from full time to part time - especially if there’s any risk of disagreement - it’s wise to seek legal advice before proceeding.

How Should Employers Handle the Conversation and Transition?

The process of moving an employee from fulltime to part time isn’t just about the legalities. It’s also about supporting your team, managing change with empathy, and avoiding misunderstandings. Here’s how you can do it well:

1. Communicate Openly and Early

Let your employee know why you’re proposing a change, or listen if they’ve requested it. Explain what’s involved, how it will affect their hours, pay, and role, and be clear that no change will occur without their written agreement. This sets a foundation of trust and transparency.

2. Give Adequate Notice

Give your employee reasonable time to consider the proposal and seek their own advice. If governed by an award or enterprise agreement, check if a minimum notice period is required for changing hours or rosters.

3. Document Everything Clearly

Provide all changes in writing and keep copies of correspondence, meetings, and the signed contract or agreement. This protects both you and your employee, and helps you stay compliant if you ever need to show a record of the process.

4. Support the Employee Through the Transition

Remember, reducing hours can have practical and financial impacts. Some businesses provide phased transitions, trial periods, or extra support where needed. Offer resources, check in regularly, and respond to questions honestly.

5. Update Internal Systems Promptly

Make sure payroll, HR records, and supervisors know about the change to avoid errors in pay or scheduling. Review superannuation and leave accruals to ensure entitlements are handled correctly.

What Legal Documents and Policies Should You Update?

When changing an employee from full time to part time, it’s important to review and update your business’s key legal documents. Common documents to consider include:

• Employment Contract or Variation Letter: Clearly outline hours, pay, entitlements, and company policies for the new arrangement.
• Workplace Policies: Ensure your Employee Handbook, leave, and flexible work policies reflect the rights of part time and full time employees.
• Payroll and HR Forms: Update systems to reflect the new status, for accurate leave and pay calculations.
• Industry Award or Enterprise Agreement Records: Confirm you are complying with your obligations for record-keeping and consultation.
• Notification Documents: If the change is related to restructuring or redundancy, you may need formal redundancy notifications or fair dismissal records.

If your business does not already have clear, up-to-date employment contract templates and workplace policies, now is a good time to get them in order. Having the right paperwork makes any future changes much simpler and reduces the risk of disputes.

Can Employees Be Forced to Change from Full-Time to Part-Time?

Generally, the answer is no: changing someone’s status from fulltime to part time is a major change to their employment conditions, and therefore cannot be imposed unilaterally unless there’s clear contractual or award provision.

If your business is restructuring due to genuine operational necessity (such as a downturn), and roles are made redundant, you may be able to lawfully offer redeployment as part-time as an alternative to redundancy - but strict consultation and notice requirements apply, and employees still have rights to redundancy pay and/or to decline redeployment.

Always seek professional advice first if you believe a forced change might be justified in your situation.

What About Changing from Part Time to Full Time?

The process also works in reverse: if an employee is part time and you want to move them to full time (with their agreement), you should go through a similar process of discussion, formal agreement, and updating the employment contract and records.

Regular reviews or discussions about working hours can benefit both parties - ensuring everyone’s needs are met and complying with award requirements on minimum hours and overtime.

Key Takeaways

• Changing an employee from full-time to part-time must be by mutual agreement and documented in writing.
• Update employment contracts and internal records to reflect new hours, pay, and entitlements.
• Check relevant modern award or enterprise agreement for any additional requirements around the change.
• Don’t attempt to force a reduction in hours - this can amount to unfair dismissal or breach of contract.
• Full time and part time employees share many entitlements, but part time benefits and leave are pro rata according to hours worked.
• Good communication and clear policies help ensure a smooth, compliant transition for everyone involved.
• Getting legal advice early can help your business avoid costly mistakes and build a workplace that supports growth and flexibility.

If you’d like a consultation about changing an employee’s status from full time to part time, or need help updating your employment contracts and workplace policies, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.