Proofreading Checklist: How to Check Your Thesis Before You Submit

A proofreading checklist helps you work through your essay, bachelor’s thesis or master’s thesis systematically before you hand it in. Plenty of students read their text several times over, but focus on the same kinds of errors each time. Unclear passages jump out at them, while the spelling, the sources and the formatting quietly stay wrong.

This guide gives you a clear order of work for that final check. Mimir Mentor is an AI-supported platform for academic work with a built-in spelling and grammar checker, plagiarism detection and literature search.

Quick answer: how should you proofread an academic paper?

Proofreading works best in separate passes: content and sources first, then language and style, and formatting and the PDF last. Trying to check everything at once means you miss more, because each layer needs a different kind of attention.

• Pass 1: the progression of the argument, the sources, the reasoning.
• Pass 2: spelling, grammar, style, repetition.
• Pass 3: page numbers, tables of contents, appendices, the file and the upload.

Why does proofreading need more than one pass?

You need several passes because your brain cannot hold content and form in sharp focus at the same time. If you think about the argument and the spelling at once, the argument almost always wins and the formal errors slip through. Separate passes let you give each layer your full attention.

1. Content: the research question, the structure, the argument and the thread running through it.
2. Sources: evidence, quotations, the bibliography and page numbers.
3. Language: spelling, grammar, punctuation and style.
4. Format: title page, tables of contents, tables, figures and the PDF.
5. Submission: file name, declaration of authorship or originality (if your institution requires one) and the upload requirements.

Short breaks between the passes are worth the time. Leaving at least one night between the language check and the final read helps enormously, because you judge your own phrasing differently once you have slept on it. Proofread without a break and you will reliably skim past the very sentences you skimmed past the first time.

What should your checklist cover for content and structure?

For content and structure you need a checklist that asks whether the paper actually answers your research question and whether it is built logically. This step comes before the language check, otherwise you will polish sentences that end up being cut.

• The research question is stated clearly in the introduction.
• Every chapter contributes to answering that question.
• The transitions between chapters make sense.
• Theory, method, results and discussion are kept apart.
• The conclusion answers the research question directly.

If you are still working on the structure, the guide on writing a bachelor’s thesis step by step may help. The proofreading checklist here is aimed at the finished draft.

Check a section of your own work for language and style

How do you check your sources and citations?

You check sources and citations by matching every reference in the text against the bibliography. Every source you cite has to appear in the list, and every source in the list should turn up somewhere in the text.

The code of conduct of the German Research Foundation (DFG), which we use here as one example, requires that “original sources are cited” and that research results are documented clearly enough “to allow the result to be reviewed and assessed” (Source: DFG Code of Conduct). In practical proofreading terms that means every source in the text has to be unambiguously identifiable, and the referencing style has to stay identical across the whole document.

How do you check spelling, grammar and style?

Leave spelling, grammar and style until the content is settled. At that point you can give sentence structure, punctuation, repetition and academic phrasing your undivided attention.

• Run a spelling and grammar check across the whole document.
• Split sentences that need a second reading to make sense.
• Cut filler words such as “actually”, “quite” and “basically”.
• Pin down vague pronouns such as “this” and “it” where the reference is unclear.
• Make terms, abbreviations and spellings consistent throughout.
• Use one spelling variant throughout, British or American English, as your department requires.

A data point from Mimir checks: in the Mimir proofreading report for April 2026, the median was 309 suggested corrections per check (source: Mimir proofreading report April 2026, in German). That is exactly why a fixed order matters when you work through them: unambiguous errors first, then typography, then style, filler words and the handling of quotations and sources.

Mimir lets you prepare this step automatically and then work through the suggestions one by one. Pay attention to the reasons given: they explain why a change may help, and that way you start spotting the same patterns yourself the next time round. Keep in mind that style suggestions are not always corrections of errors. Afterwards you can run a plagiarism check to catch textual overlap and referencing problems before you submit, and use AI text detection as an optional signal check, while documenting actual AI use according to your institution’s rules.

What formatting should you check before you submit?

Leave formatting until after the final language pass. Any late edit can shift page breaks, tables of contents or figure numbering.

• The title page carries every detail your institution asks for.
• The table of contents has been refreshed.
• The lists of figures and tables match what is actually in the text.
• Figures, tables and appendices are numbered in order and referred to in the text.
• Page numbering starts in the right place.
• The bibliography is complete and formatted consistently.
• You have opened the PDF and looked through it.

Sharpen up the last clumsy sentences before you hand in

What goes on the final 30-minute checklist?

The final 30-minute checklist holds only the things you can reliably check just before submission. Avoid major structural changes at this stage.

• Open the PDF and scroll through it.
• Check the title page, your name, your student number and the title.
• Declaration of authorship in place and signed, if one is required.
• File named the way your institution asks.
• Submission deadline and file format checked.
• One last spelling and grammar check run.

For that final check you can use Mimir’s academic proofreading tool. Mimir Mentor is GDPR-compliant, with servers in the European Union. Your document is processed purely for the analysis, deleted after 30 days at the latest, and never added to a public database. More than 70,000 students already use Mimir Mentor to check their work before they submit.

What does a sensible proofreading schedule look like?

A sensible schedule separates the big decisions from the final error hunt. The closer the deadline, the less you should be restructuring. Otherwise you introduce new errors while removing the old ones.

If you have less time than that, compress the schedule but do not drop the source check or the final PDF check. Missing or incorrect sources carry the greatest academic risk, and many avoidable submission errors come from the export: shifted tables, wrong page numbers, missing appendices or a file name that does not match the brief.

Who else should read your work?

A second reader should not try to check everything at once. Ask for specific feedback instead: one person can follow the progression of the argument, another can look only at spelling or at how easy the text is to follow. The more precise the brief, the more useful the feedback.

If nobody has the time, take a break and change how you view the draft. Print a section out, change the font size, or read the PDF on a different device. Even a different layout helps you see the errors you read straight past in your usual writing window.

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