Direct answer
A Turnitin ID number is the unique identifier that connects your draft to your account and to the submission inside the Turnitin system. For most students, the number they actually need is the class ID and enrollment key their instructor shares, plus the paper ID that Turnitin assigns to every uploaded draft [1]. Knowing which ID you are looking at — and where to find it — determines whether you can join a class, read your similarity report, and understand your AI detection result. This guide walks through each ID, where it appears, and how to use it before you submit.
What Is a Turnitin ID Number Used For?
The term "Turnitin ID" can refer to several different numbers, and confusing them is the most common reason students get stuck. Your Turnitin account is identified by the email you registered with, while every submission receives its own unique paper ID that appears in the header of your similarity and AI writing report [2].
For joining classes, the relevant identifiers are the class ID and enrollment key that your instructor publishes in the LMS or by email. These two numbers are the "Turnitin ID" most students are asked for, and they remain valid for the duration of the assignment rather than expiring after a single use [2].
Understanding which ID you have prevents a common mistake: entering your enrollment key where the class ID goes, or searching for a paper ID before a submission exists. Each identifier serves one purpose — joining a class, authenticating your account, or tracking a single submission — and knowing that purpose is the difference between a smooth submission and a support ticket [2].
Where Can I Find My Turnitin Class ID and Enrollment Key?
Instructors usually share the class ID and enrollment key inside the learning management system, in an email, or on the assignment brief. On the Turnitin submission page, you enter these two values when joining the class, and the system confirms that you belong to the correct section before you can upload anything [3].
After you submit, the paper ID appears at the top of your similarity report and in the AI writing report, right next to your score and any flags on the document [3]. This is the ID you quote if an instructor or support team ever needs to locate your exact submission in the system.
If you cannot find your class ID, check the same place you received the assignment link or ask your instructor directly — support teams cannot generate a class ID on a student's behalf, because that identifier is tied to the instructor's account [3].
Can I Check My Turnitin AI and Similarity Score Before Submitting?
Yes — and checking before submission is exactly what academic-integrity guidance recommends. Universities routinely run AI writing detection on submissions, and seeing your own score first lets you fix flagged passages before they ever reach your instructor's inbox [4].
The catch is that students cannot see the instructor's view through their own account; a report only exists once a submission has been created. Services such as turnitin0 let you preview the same similarity and AI writing report on your draft beforehand, so there are no surprises on submission day [4].
What counts as a "safe" score is not a single number: every institution applies its own policy, and the real goal is a clean, consistent report that you can explain in your own words if your instructor asks [4].
Understanding your Turnitin ID is the first step; seeing what your instructor will actually see is the second. turnitin0 runs real Turnitin similarity and AI writing checks on your draft and returns the same reports professors get in their institutional systems — so you can read your paper ID, your AI score, and every flag before you ever hit submit.
※ Turnitin0.com - Actual Turnitin AI Report Cover, Score, Flag And Similarity Summary
FAQ
Is the Turnitin class ID the same as my student ID?
No. Your class ID is a number assigned to your instructor's class and is used with the enrollment key to join it, while your student ID belongs to your university's own records [1]. The two are unrelated.
Where is the paper ID on my Turnitin report?
The paper ID is shown in the header of the similarity report and the AI writing report, next to the submission date and score [3]. It is unique to that one submission.
What does an asterisk (*) mean next to my Turnitin AI score?
Turnitin displays any AI writing score below 20% as an asterisk (*) rather than a single-digit percentage; the only explicit low number students typically see is 0% [2].
Can I check my Turnitin AI score before submitting to my instructor?
Yes. A service like turnitin0 runs the same Turnitin AI and similarity check on your draft and returns the report beforehand, so you can revise flagged text before the official submission [4].
What should I do if I lost my class ID and enrollment key?
Check the LMS or the email where the assignment was announced first, then ask your instructor — they control the class ID and can resend both values [1].