Can You Reuse Your Own Work in Another HSC Assessment?

Can you reuse your own work in another HSC assessment? Sometimes, but not simply because you wrote it yourself. NESA’s current rules make it clear that using ideas or words from your own previously submitted work without appropriate acknowledgement may be considered plagiarism. NESA’s 2026 HSC Rules and Procedures guide also specifically identifies failing to acknowledge the use of your own work previously submitted for another purpose or course as an example of malpractice.

The important distinction is between owning your work, acknowledging that you have used it, and having permission to use it again. These are three different things. You need to consider all three before submitting anything.

01First, understand what counts as reusing your own work

Your learning carries over from one assessment to the next. That’s how education is supposed to work.

If you learnt Newton’s laws in Year 11, you can use that knowledge in a Year 12 Physics assessment. If you learnt how to structure an argument in English, you can apply that skill to another essay.

You don’t have to pretend you have forgotten something just because you used it in an earlier task.

However, there is a difference between applying knowledge you have gained and submitting material that you have already presented for assessment.

Consider these examples:

The distinction is about the material being submitted, not just who originally created it.

For example, using the conservation of energy equation in a new Physics problem is not the same as copying your previous explanation of an experiment and presenting it as a new analysis.

The first demonstrates that you have retained knowledge. The second reuses an identifiable piece of previously submitted work.

There is another important detail: changing the wording does not automatically make reused material original. If you take the central argument from an earlier assessment, rearrange the paragraphs and replace the sentences with synonyms, you may still be reusing your previous intellectual work.

02What does NESA actually say?

NESA sets the academic integrity requirements that apply to NSW HSC assessments.

Under ACE Rule 10.1, plagiarism and other forms of academic dishonesty are treated as malpractice. The rule’s footnote specifically explains that using the ideas or words of another person, or your own previous work, without appropriate acknowledgement may be considered plagiarism.

NESA’s 2026 HSC Rules and Procedures guide is particularly explicit. It includes the following as an example of malpractice:

• Not acknowledging the use of your own work previously submitted for another purpose or course.

The current NESA ACE Rules: Breaches and malpractice provide the detailed requirements. These rules were updated in September 2026.

For students completing the 2027 HSC, the 2027 Rules and Procedures guide is the relevant student guide to check alongside the current ACE Rules.

Does NESA ban all reuse of previous work?

Not as a blanket rule.

The important requirement is that previous work must be appropriately acknowledged. However, acknowledgement does not automatically make every form of reuse acceptable.

The task itself may require original work, a new investigation, independent analysis or fresh experimental data. Your school may also have specific restrictions in its malpractice policy.

Think of acknowledgement as identifying where the material came from. Permission is a separate decision about whether you are allowed to use it.

A reference to your previous assignment does not override an assessment condition requiring you to produce something new.

03Who decides whether you can reuse your work?

It helps to separate the responsibilities of different organisations. Students sometimes assume that because NESA sets the HSC rules, NESA must approve every decision about a school assessment. That’s not how the process works.

Your school’s assessment policy

NESA requires schools to provide students with written information about their Stage 6 assessment policies and malpractice procedures.

Schools are responsible for developing their own malpractice policies. These must explain how suspected malpractice is investigated, the possible penalties, and the student appeals process.

For school-based HSC assessments, the school manages suspected malpractice. Appeals concerning malpractice in these tasks must also be resolved at the school level.

You are responsible for understanding and following your school’s policy.

You can find the relevant requirements in NESA ACE Rule 10.1.2 and the formal assessment programs and tasks rules.

This means two schools could have different procedures for seeking approval to reuse previous material. You should never assume that permission granted by a teacher at another school applies to your assessment.

What if a university or external provider is involved?

If your assessment belongs to a university subject, TAFE course, RTO or another education provider, you may also need to follow that organisation’s academic integrity policy.

Some students complete HSC courses through approved external providers. NESA’s external provider rules explain the responsibilities of schools and providers involved in delivering these courses.

If the assessment is part of an externally delivered HSC course, check the relevant provider’s instructions as well as your school’s arrangements.

Does UAC have a role?

UAC manages university applications, course preferences, supporting documents and offer processes. Universities and other participating institutions make their own course selection decisions.

UAC does not determine whether a student can reuse an earlier school assessment in another HSC task.

If you are preparing a separate portfolio, statement or supporting document requested by a university, follow that institution’s instructions and the relevant UAC submission requirements.

You can check the current information through UAC’s undergraduate applications and offers.

04A practical decision process before reusing your work

Before copying, adapting or incorporating anything from a previous submission, work through these steps.

Step 1: Identify exactly what you want to reuse

Don’t just think about copying paragraphs.

Check whether you are carrying over any of the following:

• Written explanations or sections of an essay.
• Original arguments, interpretations or conclusions.
• Graphs, diagrams, tables or illustrations.
• Experimental measurements or datasets.
• Calculations, computer code or mathematical models.
• Designs, plans or other creative work.

You might be reusing only one figure or a particular explanation. That is still worth identifying.

Step 2: Read the new assessment notification

Look for requirements such as:

• Original work.
• Independent analysis.
• A new investigation.
• Fresh experimental data.
• Individual research.
• Work completed specifically for this assessment.

These phrases can affect whether previous material is suitable.

For example, if your Year 12 Physics task requires you to conduct a new experiment, an old dataset cannot automatically replace the measurements you are expected to collect.

If you need help identifying exactly what the task requires, see How to Read an HSC Assessment Notification Effectively.

Step 3: Check your school’s malpractice policy

Find the section dealing with plagiarism, originality, acknowledgement and previously submitted work.

If the policy does not explain your situation, ask your subject teacher or assessment coordinator.

Don’t rely on what another student says their teacher allowed.

Step 4: Ask for permission before submitting

This is the safest practical approach, particularly when you want to reuse a substantial section of an earlier assessment.

Be specific. Instead of asking, “Can I use my old work?”, explain:

• Which previous assessment you submitted.
• Which parts you want to reuse.
• How you intend to adapt them.
• What the new assessment requires.
• Whether the reused material will affect the originality of your new response.

For example:

I submitted a Year 11 Physics investigation on pendulum motion last year. For the current assessment, I would like to adapt the background explanation and use the graph from that report. The new task asks me to evaluate the relationship between pendulum length and period. Am I permitted to reuse those parts, and how should I acknowledge them?

Try to get the response in writing.

This gives you a clear record of what was approved. It also helps prevent misunderstandings about whether permission covered a paragraph, a diagram, the underlying data or the entire previous investigation.

Step 5: Follow the approval conditions

If your teacher permits reuse, follow the specific conditions they give you.

You may be allowed to reuse a diagram but not its original analysis. You may be allowed to refer to previous experimental results but still need to collect new data.

Do not assume that permission to reuse one part extends to the entire assessment.

07How should you acknowledge your own previous work?

If your teacher permits reuse, you need to make the source clear.

NESA requires students to acknowledge previous work appropriately, in accordance with the relevant course requirements. It does not prescribe one universal citation format for every HSC assessment.

Your teacher may ask you to use a footnote, a bibliography entry, a figure caption or a specific acknowledgement statement.

A useful example might look like this:

Parts of this submission have been adapted from my earlier report, “Investigating Pendulum Motion”, submitted for Year 11 Physics Task 2 in Term 3, 2025. The background explanation and original graph have been reused with permission. The analysis and evaluation have been developed for the current assessment.

You should adjust this statement to accurately describe what you have reused.

If you have reused only a graph, don’t imply that you have reused the entire report. If you have adapted an original argument, acknowledge that argument rather than simply listing the earlier report in your bibliography.

A few things to remember:

• Acknowledgement should be specific enough for your teacher to identify the earlier work.
• Identify the actual material reused, not just the general topic.
• Make clear what has been newly developed.
• Follow the citation format requested by your teacher.
• Do not describe previously submitted work as entirely new or independently produced.

If you’re unsure how much detail is necessary, ask your teacher before submitting.

08Keep evidence of how your work developed

Being able to show that you created your own work is an important part of HSC academic integrity.

NESA’s 2027 Rules and Procedures guide states that students are responsible for keeping drafts and evidence of how their work developed.

If plagiarism is suspected, you may need to explain your process and demonstrate your knowledge of the work you submitted.

Useful evidence includes:

• Earlier versions of your assessment.
• Research notes and planning documents.
• Original calculations and working.
• Experimental records and raw data.
• Document version history.
• Feedback from your teacher.
• Written approval to reuse specific material.
• Copies of the original and new assessment submissions.

If you realise that you have already submitted work containing unacknowledged material from an earlier assessment, contact your teacher promptly.

Explain exactly what was reused and provide the original submission if requested. Do not try to conceal the overlap by deleting earlier drafts, changing document histories or inventing an explanation.

If your school investigates the matter, follow its malpractice policy and use the available response and appeal procedures.

A finding of malpractice in a school-based HSC assessment may result in a school penalty and must be recorded in NESA’s Malpractice Register. Suspected malpractice in HSC examinations is handled separately by NESA and can carry more serious consequences.

09Questions and solutions

Question 1

Mia submitted a Year 11 Biology assessment containing a 200-word explanation of cell membrane transport.

In Year 12, she copies the same paragraph into a new Biology assessment. She argues that she cannot be plagiarising because she originally wrote every sentence herself.

Is Mia correct?

Solution 1

No. Mia must acknowledge that the paragraph comes from her own previously submitted work.

NESA’s ACE Rule 10.1 explicitly recognises that using your own previous work without appropriate acknowledgement may be considered plagiarism. The 2026 HSC Rules and Procedures guide also identifies failure to acknowledge previously submitted personal work as an example of malpractice.

The fact that Mia originally wrote the paragraph establishes authorship, but it does not establish that the paragraph is new work for the current assessment.

She should disclose the earlier submission and ask her teacher whether reuse is permitted. Even with acknowledgement, she must still satisfy the requirements of the new task.

Question 2

Noah completed a Year 11 Physics assessment involving conservation of momentum.

In Year 12, he receives a new problem requiring him to analyse a collision between two objects. He uses the same conservation of momentum principle but creates a new diagram, writes his own explanation and completes all calculations independently.

Does Noah need to acknowledge his Year 11 assessment?

Solution 2

No, not simply because he is applying the same Physics principle.

Conservation of momentum is established syllabus knowledge. Applying a concept learned in an earlier course or assessment is normal academic practice.

Noah is producing a new response using his understanding of the subject. He is not transferring an identifiable piece of his previously submitted work.

NESA’s 2026 guidance also explains that students do not need to formally acknowledge material learned from their teacher in class.

However, if Noah copied a distinctive explanation, original analysis or diagram from his earlier assessment, that would introduce a separate acknowledgement issue.

The important distinction is between reusing knowledge and reusing submitted material.

Question 3

Amelia completed a Year 11 Chemistry investigation and collected experimental data showing how temperature affected reaction rate.

For a Year 12 Chemistry assessment, she is asked to evaluate a mathematical model using experimental evidence. The notification does not explicitly state that she must conduct a new experiment.

Amelia wants to include her previous dataset and calculate a new regression line.

Can she do this?

Solution 3

Amelia should not include the previous dataset until she has checked with her teacher and obtained permission.

Although she collected the measurements herself, the dataset was already used in a submitted assessment. It is identifiable material from her previous work and should be acknowledged if reused.

Calculating a new regression line does not make the original measurements newly collected data.

There are two separate issues:

• Academic integrity: Amelia must disclose that the measurements were previously submitted.
• Assessment validity: the teacher must determine whether those measurements are acceptable evidence for the new task.

If the teacher permits reuse, Amelia should identify the original dataset and clearly explain that the new analysis was completed for the current assessment.

If the task requires a fresh investigation, she must collect new measurements instead.

Question 4

Ethan submitted a Year 11 Modern History assessment arguing that economic pressures were the main cause of a particular historical event.

In Year 12, he receives a related assessment requiring an original independent evaluation of the same event.

Ethan rewrites his old argument entirely. He changes the order of the paragraphs, uses different sentences and adds several new sources. He lists his Year 11 report in his bibliography but does not identify which ideas have been carried across.

Has he sufficiently addressed the reuse issue?

Solution 4

No. Ethan has acknowledged the existence of his earlier report, but he has not clearly identified the reuse of its central argument.

NESA’s ACE Rule 10.1 footnote refers to both ideas and words from a student’s previous work. This means that changing the wording does not automatically remove the acknowledgement requirement.

There is also a second problem. The new task specifically requires an original independent evaluation.

Ethan cannot assume that an extensively rewritten version of his previous argument satisfies that requirement. The underlying reasoning and conclusion have already been developed and submitted.

He should disclose the earlier argument, ask his teacher whether any adaptation is permitted, and develop a genuinely new evaluation that responds independently to the current task.

A bibliography entry is useful, but it does not necessarily make the extent of the reuse clear.

Question 5

A Year 11 Physics student, Jai, completed and submitted an investigation measuring the period of a pendulum at different lengths. His original report contained 30 experimental measurements and an analysis of the relationship between period and length.

In Year 12, Jai receives a new assessment with the following conditions:

• He must design a new investigation of pendulum motion.
• He must collect a fresh dataset across a new range of lengths.
• He must independently analyse the new measurements.
• Previously submitted measurements may inform his choice of research question but cannot be included in the new results.

Jai collects 30 new measurements. However, he believes that combining them with his original 30 measurements will produce a more reliable overall graph.

His teacher has also emailed him saying, “Build on last year’s investigation; it is a useful starting point.”

Jai plans to combine both datasets, cite his Year 11 report and rewrite his original conclusion.

What should he submit, and why isn’t acknowledging the earlier report enough?

Solution 5

Jai should use the 30 new measurements as the dataset for his Year 12 assessment and develop a fresh analysis and conclusion. He must not combine the previously submitted measurements with the new results.

This situation involves three different constraints.

First, the task explicitly requires fresh evidence.

The assessment notification does not simply ask Jai to investigate pendulum motion using experimental evidence. It specifically requires a fresh dataset and states that previously submitted measurements cannot form part of the new results.

Combining the two datasets would directly contradict that condition.

Second, the teacher’s email does not override the written task requirements.

The instruction to build on the previous investigation allows Jai to use his earlier learning as a starting point. The task itself explains the permitted extent of that connection: previous measurements may inform his choice of research question, but cannot be included in the new results.

The email does not provide permission to disregard that restriction.

If Jai thinks his teacher intended to allow a broader form of reuse, he should seek explicit written clarification before submission.

Third, acknowledgement does not establish that reused material meets the assessment requirements.

Citing his Year 11 report would identify where the original measurements came from. It would not make those measurements fresh Year 12 evidence.

Similarly, rewriting the previous conclusion would not automatically produce an independent evaluation of the new investigation.

Jai should therefore:

• Use his earlier investigation only in the ways permitted by the task.
• Present the 30 new measurements as the evidence for his Year 12 investigation.
• Complete a new analysis using those measurements.
• Develop a conclusion based on the current results.
• Acknowledge any specific earlier ideas or material that he has carried across.

The deeper lesson is that academic integrity is not just about identifying who created a piece of work. It is also about accurately representing what was produced for the current assessment and meeting the conditions under which it is being assessed.

10Before your next HSC submission

When you begin a new assessment, make one distinction early: are you applying knowledge from previous study, or are you carrying over material that you have already submitted?

If it is the second, identify the material, check your school’s policy, and obtain approval before using it again.

Once you have settled that question, make sure you understand exactly what the new assessment requires you to demonstrate. The tutorgum guide to reading HSC assessment notifications is a useful next step.

And if AI has contributed to the work as well, remember that this creates a separate acknowledgement and permission issue. See Can You Use AI for HSC Assessments? A Practical Checklist.

Your previous work can be a valuable foundation for learning. Just make sure your next submission accurately represents what you have done for the assessment in front of you.