Paraphrasing is one of the most important academic writing skills — and one of the most misunderstood. Done correctly, it demonstrates your understanding of a source and strengthens your argument. Done incorrectly, it is plagiarism, even if you add a citation. This guide shows you exactly how to paraphrase properly, with real before-and-after examples, citation rules and tips for passing Turnitin.
📋 Table of Contents
- What Is Paraphrasing?
- Paraphrasing vs Quoting vs Summarising
- How to Paraphrase in 5 Steps
- Good vs Bad Paraphrasing Examples
- Poor, Insufficient and Sham Paraphrasing
- How to Cite a Paraphrase
- True or False: Is Paraphrasing Legal?
- Practice Exercise With Answers
- Paraphrasing and Turnitin
- Common Mistakes
- FAQs
What Is Paraphrasing?
Paraphrasing means restating someone else's idea in your own words while preserving the original meaning. It is not copying with a few words changed — it is a genuine rewrite that demonstrates you have understood and processed the source material. Effective paraphrasing requires you to fully understand the original, set it aside, and then express the idea in your own voice and sentence structure.
Paraphrasing is the preferred way to use sources in most academic essays because it shows your own thinking rather than simply copying another author's words. It integrates sources smoothly into your argument and keeps your writing voice consistent throughout.
Paraphrasing vs Quoting vs Summarising
- Paraphrasing — restating a specific idea from a source in your own words, roughly the same length as the original. Always requires a citation.
- Quoting — reproducing the exact words of a source in quotation marks. Use sparingly — only when the exact wording matters. Always requires a citation with page number.
- Summarising — condensing the main argument or findings of an entire source or section into a shorter version in your own words. Always requires a citation.
💡 When to use each: Paraphrase most of the time. Quote only when the exact wording is significant — a key definition, a striking phrase or legal language. Summarise when you need to cover a broad argument or an entire source briefly.
How to Paraphrase in 5 Steps
Read the original carefully
Read the passage until you fully understand the meaning — not just the words. Look up any terms you do not understand before proceeding.
Set the source aside
Close or cover the original text before you start writing. This is the most important step — it forces you to write in your own words rather than copying with minor changes.
Write the idea in your own words
Express the idea from memory using your own vocabulary and sentence structure. Do not look at the original while writing.
Check against the original
Compare your version with the original. If your sentence structure closely mirrors the source or if you have used many of the same words, rewrite again.
Add your citation
Even a perfect paraphrase requires a citation. Include the author's name and year (and page number for APA direct quotes). No citation = plagiarism regardless of how well you paraphrased.
Good vs Bad Paraphrasing Examples
Example 1 — Psychology
Original: "Stress significantly impairs working memory capacity, reducing the ability to process and retain information during cognitively demanding tasks."
Stress greatly impairs working memory capacity, decreasing the ability to process and retain information during cognitively demanding activities.
When individuals experience stress, their capacity to hold and manipulate information in the short term is compromised, making it harder to perform tasks that require sustained mental effort (Smith, 2022).
Example 2 — Business
Original: "Organisational culture plays a decisive role in determining whether digital transformation initiatives succeed or fail within large corporations."
Organisational culture plays a critical role in deciding whether digital transformation initiatives succeed or fail in large companies.
The extent to which large companies successfully undergo digital transformation is heavily influenced by the existing values and norms embedded within their organisational structure (Johnson & Williams, 2021).
Example 3 — Nursing
Original: "Effective communication between nurses and patients is fundamental to delivering person-centred care and reducing the risk of adverse clinical outcomes."
Good communication between nurses and patients is essential for person-centred care and reducing adverse clinical outcomes.
When nurses communicate clearly and empathetically with those in their care, they are better positioned to tailor treatment to individual needs and minimise the likelihood of preventable harm (NMC, 2018).
⚠️ The most common mistake: Changing only a few words while keeping the original sentence structure is still plagiarism. Turnitin and AI detection tools are highly effective at identifying this pattern, even when synonyms are substituted throughout.
Poor, Insufficient and Sham Paraphrasing
Markers and quizzes use several labels for a paraphrase that does not pass. Terms vary between institutions, but the problems fall into three groups. We use one fictional original to show each: "Sleep loss reduces attention and slows reaction time."
- Insufficient (or inadequate) paraphrase
- Too little has changed. The sentence keeps the original order and structure and only swaps words for synonyms: "Lack of sleep lowers attention and slows reaction time." This is the version Turnitin and markers spot most easily.
- Poor paraphrase
- The wording is different but the meaning is damaged: it overstates, drops a point or adds a claim the source never made, such as "Sleep loss makes people unable to function." A paraphrase has to stay faithful to the source.
- Sham paraphrase
- It looks acceptable because it carries a citation, but the wording is still essentially the author's own. A citation does not fix copied wording: if you keep the author's phrasing, it needs quotation marks or a real rewrite.
✅ An acceptable paraphrase of the same sentence: "People who are short of sleep tend to concentrate less well and respond to events more slowly (Brown, 2023)." The structure, vocabulary and emphasis are new, the meaning is unchanged and the source is credited. For the wider picture, see our guide to how to avoid plagiarism.
How to Cite a Paraphrase
Every paraphrase must be cited — the source of the idea must be acknowledged even though you have used your own words. Citation format depends on your referencing style:
Harvard
Research indicates that sleep deprivation significantly reduces academic performance (Brown, 2023).
APA 7th Edition
Research indicates that sleep deprivation significantly reduces academic performance (Brown, 2023).
Brown (2023) found that sleep deprivation significantly reduces academic performance.
OSCOLA (Law)
In OSCOLA, paraphrases are cited in footnotes rather than in-text. A footnote for a journal article looks like this (fictional source): ¹ Jane Brown, 'Sleep and Academic Performance' (2023) 14 Student Learning Review 45, 47.
💡 Do paraphrases need page numbers? In Harvard and APA, page numbers are required for direct quotes but optional for paraphrases. However, including a page number for paraphrases is good academic practice and shows careful engagement with the source — many markers appreciate it.
For a full breakdown of in-text citations, reference list formatting and common mistakes, see our complete guide: Harvard vs APA vs OSCOLA referencing.
True or False: Is Paraphrasing Legal?
A common quiz statement reads: "Paraphrasing is legal, because you are restating an idea using words different from those used in the original text." As written, this is not a complete or safe statement, and in most true/false questions the expected answer is false.
- Different words are not enough. Paraphrasing is acceptable academic practice only when the idea is also credited to its author with a citation.
- Structure matters too. Keeping the original sentence structure with synonyms swapped is an insufficient paraphrase, even if every word has changed.
- "Legal" is the wrong test. The question in coursework is academic integrity, meaning whether you have acknowledged the source and shown your own understanding. Check how your course defines it.
Practice Exercise With Answers
Try paraphrasing each sentence yourself using the five steps above, then open the model answer. The sentences and sources are fictional and written for practice only. There is more than one correct answer, so compare the approach, not the exact words.
1. "Urban green spaces are associated with lower levels of self-reported anxiety among residents, particularly in densely populated neighbourhoods."
Show a model answer
Residents of crowded neighbourhoods tend to report feeling less anxious when parks and gardens are close by (Okafor, 2023).
2. "Because formative feedback arrives before final grades are awarded, students can act on it, whereas summative feedback usually comes too late to influence performance."
Show a model answer
Comments given while a course is still running give learners a chance to improve, but feedback that arrives with a final mark rarely helps them change their work (Lindqvist, 2022).
3. "Remote working has widened the talent pool available to employers but has also made it harder to build a shared organisational culture."
Show a model answer
Letting staff work from anywhere gives firms access to more potential recruits, although it can weaken the sense of shared identity that holds teams together (Mensah & Clarke, 2024).
Self-check: does your version change the sentence structure, keep the meaning, avoid long runs of the original wording, and include a citation? If any answer is no, rewrite it.
Paraphrasing and Turnitin
Turnitin compares your submission against billions of web pages, academic journals and previously submitted student work. Here is what you need to know:
- Bad paraphrasing shows up — swapping synonyms while keeping the same sentence structure is flagged by Turnitin's pattern-matching algorithm
- Good paraphrasing does not trigger flags — genuinely rewritten text with different vocabulary and structure will not match the original
- Cited direct quotes do not count as plagiarism — Turnitin highlights them, but markers understand quoted text is intentional
- A similarity score is not a plagiarism score — a 15–20% similarity score from correctly cited quotes and common phrases is normal and acceptable at most institutions
- AI-generated text is increasingly detectable — Turnitin's AI detection tool flags AI-written content separately from plagiarism
💡 What similarity score is acceptable? Most universities consider below 15–20% acceptable, though thresholds vary by institution and department. A high score is not automatically a problem if the matched content is correctly quoted and cited — always check your institution's policy.
Common Paraphrasing Mistakes
- Synonym substitution — replacing words with synonyms while keeping the same sentence structure is plagiarism, not paraphrasing
- Paraphrasing without citing — the idea still belongs to the original author; always cite even a perfect paraphrase
- Over-paraphrasing — changing so much that the original meaning is distorted or lost
- Paraphrasing too closely — staying too close to the original structure even with different words
- Patchwriting — stitching together paraphrased phrases from multiple sources without adding original analysis
- Using paraphrasing tools — online paraphrasing tools and AI rewriters produce bad paraphrases that are easily detected and often distort meaning
- Forgetting to return to the original — always verify your paraphrase accurately represents the source's meaning
FAQs
Does a paraphrase need a citation?
Yes — always. Even if you have completely rewritten a source idea in your own words, the idea itself originated with another author and must be credited. Failing to cite a paraphrase is plagiarism regardless of how different your wording is from the original.
What is the difference between paraphrasing and plagiarism?
Paraphrasing is a legitimate academic practice — you take an idea from a source, express it in your own words and cite the original author. Plagiarism occurs when you present someone else's idea as your own, either by copying directly, changing only a few words, or paraphrasing without citing the source.
Can I use an online paraphrasing tool?
We strongly advise against it. Online paraphrasing tools — including AI rewriters — produce synonym-substituted text that Turnitin detects easily, often distort the original meaning and do not constitute genuine engagement with the source material. They are also increasingly flagged by AI detection tools. Genuine paraphrasing requires you to understand and rewrite the idea yourself.
How many sources should I paraphrase in an essay?
There is no set number — what matters is that your essay uses sources to support your own argument rather than stringing together paraphrases from multiple authors. A strong essay uses paraphrased evidence selectively, always followed by your own analysis of what the evidence means for your argument.
Is paraphrasing the same as summarising?
No. Paraphrasing restates a specific idea or passage in your own words at roughly the same length. Summarising condenses the main points of a longer section or entire source into a shorter version. Both require citation, but they serve different purposes — use paraphrasing for specific points and summarising for broad arguments.
Do you use quotation marks when paraphrasing?
No. A true paraphrase is in your own words, so it does not take quotation marks, but it still needs a citation. If you keep a distinctive phrase from the original, put that phrase in quotation marks and cite it, or rewrite it.
What is an ideal amount to paraphrase?
There is no fixed amount or percentage. Paraphrase individual ideas, not whole passages, and make sure your own analysis and argument make up most of the essay. If your rubric or department sets a limit, follow that.
What is an insufficient paraphrase?
An insufficient (or inadequate) paraphrase changes too little of the original: it keeps the same sentence structure and swaps in synonyms. It is treated as poor practice or plagiarism even when cited, so rewrite it in a genuinely different structure.
How do you paraphrase without plagiarizing?
Read until you understand the source, set it aside, write the idea from memory in your own words and sentence structure, check it against the original for meaning and similarity, then add a citation. The full method is in the five steps above. (Plagiarizing is the US spelling of plagiarising.)
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