Direct answer
The Turnitin Originality Report is the similarity-checking report instructors open when they review a submission in Feedback Studio. It shows how much of a paper's text matches content in Turnitin's vast database of web pages, academic journals, and previously submitted student work [1]. If you are about to submit an assignment, understanding this report — what it measures, how the percentage is calculated, and how to read it — is the difference between a clean submission and a surprise similarity flag [1].
What Is the Turnitin Originality Report and What Does It Include?
The Turnitin Originality Report is one of two reports Turnitin generates for a submission: the similarity report and the AI writing report [2]. The originality report focuses exclusively on text matches — passages in your paper that overlap with sources in Turnitin's repository. The AI writing report, by contrast, analyzes sentence-level patterns to estimate whether text was generated by an AI tool [2].
Inside the originality report, you see an overall similarity index expressed as a percentage, plus color-coded highlights over matched passages. Each highlighted section links to the original source, and the match panel lists the sources in descending order of overlap so you can inspect each one [2]. This is the same view your instructor sees when they open your submission for review.
It is just as important to understand what the originality report does not do. It does not judge whether you wrote the paper yourself, detect AI-generated text, or assess academic quality — it only measures textual overlap with existing sources [2]. A paper can carry a low similarity score and still be AI-written, which is exactly why Turnitin pairs the originality report with its separate AI writing detection report [2].
How Do I Read and Interpret My Turnitin Originality Report Similarity Score?
The similarity score is a percentage representing how much of your paper's text matches sources in Turnitin's database [3]. A 10% score means roughly 10% of the paper overlaps with indexed content — but the number alone is not the whole story, because the quality of those matches matters more than the total [3].
The report color-codes the similarity index into bands — blue, green, yellow, orange, and red — so you can judge the severity at a glance [3]. Matched passages are highlighted inline, and clicking a highlight opens the original source so you can check whether the overlap is a properly cited quotation or an accidental copy [3].
Keep in mind that not every match is plagiarism. Correctly quoted material, references, and bibliographies routinely appear as matches, and instructors can exclude quotes, bibliography entries, and small matches before they act on the score [3]. When you read your own report, look at what is actually being flagged rather than reacting to the percentage alone [3].
Can I Preview My Own Turnitin Originality Report Before Submitting It to My University?
Whether you can preview your own originality report before submission depends on your instructor. In most institutions, Turnitin runs inside the learning management system and the report is generated after you submit, unless the instructor enables a draft or self-check workflow [4].
Academic integrity guidance consistently recommends checking similarity and AI signals before the final submission rather than discovering issues after the fact [4]. Seeing the report in advance lets you rewrite accidental matches, fix citations, and lower your similarity percentage before your instructor ever sees it [4].
If your institution does not offer self-checking, many students use an independent service that delivers the same Turnitin similarity and AI reports on their draft, so they know exactly what their instructor will see [4]. That pre-submission check is what separates a confident submission from a gamble on the final result [4].
Whether you are checking a final draft or trying to understand a score you already received, seeing the actual Turnitin report on your own paper takes the guesswork out of the process. turnitin0 gives students the exact Turnitin similarity and AI writing reports instructors see — so you can review your originality report, spot flagged matches, and fix issues before submitting.
※ Turnitin0.com - Actual Turnitin AI Report Cover, Score, Flag And Similarity Summary
FAQ
What is the difference between the Originality Report and the AI writing report?
The Originality Report measures text matches against Turnitin's content database, while the AI writing report estimates the likelihood that text was generated by an AI tool [2]. Turnitin generates both reports for each submission, and instructors review them together when evaluating a paper [1].
What similarity percentage is considered acceptable?
There is no universal passing score — expectations depend on your institution and the assignment type [3]. What matters more is the nature of the matches: properly quoted and cited material is expected, while unreferenced copied passages are a problem [3].
Does a low similarity score mean the paper is original?
No. The similarity score only measures textual overlap with existing sources; it does not detect AI-generated writing or assess quality [2]. A paper can show a very low similarity score and still be flagged by the AI writing report [2].
Can I see my originality report before I submit?
Only if your instructor enables self-checking in the learning management system [4]. Otherwise, you can use an independent service such as turnitin0 to get the same Turnitin similarity and AI reports on your draft before submission [4].
How do I lower my similarity percentage?
Review the matched passages and rewrite or properly cite the overlapping text [3]. Excluding quoted material and bibliography entries from the report can also clarify which matches are legitimate before your instructor reviews the score [3].