Skip to content
MAAS EdTech — Academic Success Partner
Consultation
Tiếng Việt
Back to BlogWriting Tips

How do you edit and proofread an assignment before you submit?

16 min read3,048 wordsNEW

Edit and proofread as two separate passes, in that order: editing checks whether the argument, structure and paragraphs are doing their job, while proofreading catches the surface errors left once that structural work is done (The Writing…

Edit and proofread as two separate passes, in that order: editing checks whether the argument, structure and paragraphs are doing their job, while proofreading catches the surface errors left once that structural work is done (The Writing Center, University of North Carolina at Chapel Hill, n.d.; Eastern Washington University, 2024). Treat them as one pass and you end up polishing sentences that get deleted at the next revision, or missing a comma splice because you were busy rethinking your argument.

This guide separates the two skills, gives you a multi-pass checklist you can run against any assignment, and lists the techniques with the best evidence for actually catching errors. Every claim traces to a university writing centre, library guide, or APA Style, and the full source list sits at the end.

Author: MAAS Academic Skills Publishing Desk · Reviewed by a Principal Academic Mentor
Last updated: 2026-07-04
Category: writing-tips

Editing and proofreading are not the same skill

The Writing Center at UNC Chapel Hill treats editing and proofreading as distinct stages of the revision process, not two words for the same task (The Writing Center, University of North Carolina at Chapel Hill, n.d.). Editing works above the surface of the text, on content, overall structure, the structure within paragraphs, clarity, style and citations, and happens once the bigger structural revision is done; proofreading is the final stage, focused on surface errors such as misspellings and mistakes in grammar and punctuation (The Writing Center, University of North Carolina at Chapel Hill, n.d.). Eastern Washington University's Writers' Center draws the same line: proofreading targets "surface level errors like typos, misspellings, and formatting errors" and explicitly warns that it "is not just running a spell checker" (Eastern Washington University, 2024).

The distinction matters because the two passes ask different questions of the same text. Editing asks whether a paragraph belongs and whether the argument holds together; proofreading asks whether the sentence in front of you is correctly built and correctly punctuated. Running both checks at once means neither gets done properly, because attention to a comma competes with attention to the argument it sits inside.

Why the order is fixed: edit first, proofread last

Both universities are explicit that the order is not interchangeable. UNC's guidance states plainly that "you should proofread only after you have finished all of your other editing revisions" (The Writing Center, University of North Carolina at Chapel Hill, n.d.), and Eastern Washington University gives the practical reason: "there's no point in correcting mistakes that you may delete/change while revising or editing" (Eastern Washington University, 2024). A sentence you polish for word choice may belong to a paragraph you cut an hour later once you notice it does not support your argument. Proofreading a paragraph before you have confirmed it survives the structural pass wastes the effort twice, once on the sentence and once again after you rewrite it.

This also means editing should not wait for a "final" draft that proofreading then finishes off. The two passes are sequential precisely because editing decisions change what there is to proofread.

Pass one: does the argument and structure hold up

Editing starts above the sentence level. UNC's guidance places paragraph structure and citations alongside clarity and style as concerns of the editing stage (The Writing Center, University of North Carolina at Chapel Hill, n.d.), and the same centre's paragraph guidance gives the specific test: "all of the sentences in a single paragraph should be related to a single controlling idea (often expressed in the topic sentence of the paragraph)," and further, "the sentences should all refer to the central idea, or thesis, of the paper" (The Writing Center, University of North Carolina at Chapel Hill, n.d.-b). A paragraph earns its place in the assignment only if every sentence inside it connects to that controlling idea and that idea connects back to your overall argument; a paragraph that drifts, however well written its individual sentences, is a structural fault that a later grammar check will never catch.

A practical technique for testing this is reverse outlining: write down the one-sentence point of each paragraph in order, then read that list on its own. If a point does not follow logically from the one before it, or repeats a point already made, the structural problem is visible before you have re-read a single full sentence (The Writing Center, University of North Carolina at Chapel Hill, n.d.-b). This first pass should also check transitions between paragraphs and whether your evidence for each claim is actually doing the work the claim needs (The Writing Center, University of North Carolina at Chapel Hill, n.d.). If your assignment is an essay, the university essay guide covers building that argument structure from the outset; if it is a report, the report-writing guide covers the section-by-section version of the same discipline.

Pass two: sentence clarity and cohesion

Once the paragraphs are confirmed to belong, the next pass moves down to the sentence and the transition between sentences. This is still editing, not proofreading: you are checking clarity, consistency of terminology, and whether ideas flow logically from one sentence to the next, which the writing centre groups under "cohesion" separately from unity (The Writing Center, University of North Carolina at Chapel Hill, n.d.-b). A sentence can be grammatically correct and still fail this pass if a reader has to reread it to see how it connects to the sentence before it.

Practically, this pass asks of each sentence: is this the clearest way to say this, does it use the same term for the same concept as the rest of the paragraph, and does the sentence that follows it need a signal word to show the relationship between them. This is also the point at which to check length and density; a paragraph made of uniformly long, clause-heavy sentences is harder to mark than one with some variation, and unclear sentences are exactly what forces a marker to re-read, which costs you goodwill even before it costs you marks.

Pass three: referencing consistency

Referencing is deliberately treated as its own pass rather than folded into either editing or the final proofread, because it needs its own dedicated check against the reference list rather than against the argument. APA Style is explicit that the in-text citation for a work corresponds to its reference list entry, and that this correspondence runs in both directions: every source cited in the body needs a matching entry, and every entry needs to be cited somewhere in the body (American Psychological Association, n.d.). The same guidance stresses that "consistency in reference formatting allows readers to understand the types of works you consulted," across author, date, title and source elements (American Psychological Association, n.d.).

In practice, this pass means going through your reference list entry by entry and confirming each has a matching in-text citation, then going through your in-text citations and confirming each has a matching entry: no orphaned references, no in-text citations pointing at nothing. Where a discipline requires a specific style, run this same matching check against that style's rules; our guide to referencing correctly in APA 7th covers the entry formats most students get wrong, and the decision rule for when a source needs citing at all is worth checking before you assume a claim is safely uncited.

Pass four: the final surface proofread

Only after structure, sentence clarity and referencing are settled does the surface proofread begin. UNC frames this as reading for "misspellings and mistakes in grammar and punctuation" once everything else is finished (The Writing Center, University of North Carolina at Chapel Hill, n.d.), and the University of Sheffield's guidance recommends running it as several separate, narrow passes rather than one pass that tries to catch everything: one pass for referencing, one for grammar, punctuation and spelling, one for layout and structure, and one for facts, dates, quotes, tables and text boxes, with formatting checked last (University of Sheffield, n.d.). Splitting the proofread into single-purpose passes matters for the same reason editing and proofreading are kept apart: a reader who is checking for a comma splice is not simultaneously checking whether a date is correct, and trying to do both at once means both get done less carefully.

Errors markers see most often

La Trobe University Library's guidance to student writers lists the sentence-level errors markers encounter most often: sentence fragments, run-on sentences, comma splices, and slips in subject-verb agreement (La Trobe University Library, n.d.). A run-on or fused sentence joins two independent clauses with no connecting word or punctuation between them, and a comma splice is the same fault with only a comma at the join; both are compound sentences that are not punctuated correctly (Purdue Online Writing Lab, n.d.-a). A fragment is the opposite problem, a group of words punctuated as a sentence without a complete independent clause. Subject-verb agreement is easiest to slip in longer sentences, because a noun in a phrase that sits between the subject and the verb can pull a writer toward the wrong verb form; the verb has to agree with the actual subject, not with a noun in that intervening phrase (Purdue Online Writing Lab, n.d.-b). Each of these is a small, local error, and each is exactly the kind of fault a structural edit will not surface, because the sentence can be perfectly placed in an otherwise well-organised paragraph and still be broken at the clause level.

Pass five: check the assignment against the brief

A final pass belongs outside both editing and proofreading in the strict sense: checking the finished document against your assignment brief and marking rubric. This is a completeness check rather than a quality check, confirming the format, word count, referencing style, and any required sections match what was actually asked for, the same discipline the report-writing guide covers in more depth for formal report structure. Skipping this pass means a well-edited, well-proofread assignment can still lose marks for missing a requirement that had nothing to do with the writing itself.

Techniques that actually catch errors

Two things make errors hard to see in your own writing: familiarity with your own text, and reading it in the same medium and the same order every time. University guidance points to four techniques that interrupt those habits.

Leave a time gap. UNC's advice is to "put the paper aside for a few hours, days, or weeks" before reviewing it (The Writing Center, University of North Carolina at Chapel Hill, n.d.), and the University of Sheffield gives the same reasoning for a shorter deadline: "it can help to leave written work for a day or two before proofreading it" (University of Sheffield, n.d.). The gap breaks your familiarity with the draft, so you read the words actually on the page rather than the ones you remember writing.

Read aloud. UNC notes that reading aloud "forces you to say each word and also lets you hear how the words sound together," which surfaces both missing words and awkward phrasing that silent reading skips over (The Writing Center, University of North Carolina at Chapel Hill, n.d.).

Read in reverse, or start from the end. The University of Sheffield recommends beginning "proofreading from your last paragraph to your first paragraph," because reading in the order you wrote the text "lulls the brain into a false sense of security," and errors that would stand out on their own hide inside a familiar sequence (University of Sheffield, n.d.). UNC's variant works at the word level for spelling specifically: "start with the last word on the last page and work your way back to the beginning, reading each word separately" (The Writing Center, University of North Carolina at Chapel Hill, n.d.).

Change the medium. The University of Sheffield notes "it may be easier to spot mistakes if you proofread from a paper printout of your text rather than from a screen version" (University of Sheffield, n.d.), and UNC adds that altering the size, spacing, colour or style of the text on screen has a similar effect (The Writing Center, University of North Carolina at Chapel Hill, n.d.). Both work for the same reason: a text that looks different reads as unfamiliar, which is exactly the state that makes errors visible again.

Using tools without outsourcing your judgement

Spelling and grammar checkers have a legitimate, narrow role in this process, and university guidance is specific about where that role ends. Birmingham City University's library guidance draws the line at what the tool actually does to your sentences: basic correctness checking, such as "Spelling & Grammar Check" and correctness suggestions that flag spelling, grammar and punctuation without rewriting your sentences, "do not significantly alter the content of your ideas," so you can use them to help revise your assignment (Birmingham City University, 2026). Generative tools that "create sentences, predict sentences, or substantively rewrite your sentences," by contrast, are a different category, because relying on them "can make it difficult for your marker to know how well you have understood the content for yourself" (Birmingham City University, 2026). The guidance frames the underlying goal as writing in your own voice "in order to demonstrate your understanding of the ideas and sources you are presenting" (Birmingham City University, 2026).

The practical test is whether a tool is flagging an error for you to fix or fixing it and rewriting the sentence for you. The first keeps the editing and proofreading decisions with you, where your marker expects them to sit; the second replaces exactly the judgement your assignment is supposed to demonstrate. Check your own institution's policy before relying on any tool for more than surface-level flagging, since policies differ and the consequence for misjudging the line is an academic integrity matter, not a style preference.

WHEN YOU WANT A SECOND PAIR OF EYES ON THE FINAL DRAFT

Structural problems and sentence-level errors are both hardest to see in your own writing, precisely because you already know what you meant to say. Through academic support at MAAS, an experienced mentor reviews your draft against your brief, flags where a paragraph has drifted from its argument or a pass has been skipped, and talks you through what to fix and why. Your mentor questions, advises and gives structured feedback; the decisions and the writing remain your own.

Frequently asked questions

What is the difference between editing and proofreading?
Editing addresses higher-order concerns such as content, structure, clarity, style and citations, and happens earlier in the revision process; proofreading is the final stage, checking "surface level errors like typos, misspellings, and formatting errors" (The Writing Center, University of North Carolina at Chapel Hill, n.d.; Eastern Washington University, 2024). Editing decides whether the writing is doing its job; proofreading confirms the sentences are correctly built.

Why can't I edit and proofread at the same time?
Because you should "proofread only after you have finished all of your other editing revisions" (The Writing Center, University of North Carolina at Chapel Hill, n.d.); correcting a sentence's grammar before you have confirmed its paragraph survives the structural pass risks correcting text you delete or rewrite later (Eastern Washington University, 2024).

What should I check for in a paragraph-level edit?
Confirm every sentence in the paragraph relates to a single controlling idea, usually stated in the topic sentence, and that the paragraph's idea connects to your paper's overall thesis (The Writing Center, University of North Carolina at Chapel Hill, n.d.-b). Reverse outlining, writing down each paragraph's point in one sentence and reading that list alone, is a fast way to test this.

What sentence-level errors do markers see most often?
Sentence fragments, run-on sentences, comma splices, and subject-verb agreement errors are the errors La Trobe University Library's guidance flags as most common (La Trobe University Library, n.d.). A fragment lacks a complete independent clause, a run-on or fused sentence joins two independent clauses with no punctuation or connecting word, and a comma splice joins them with only a comma (Purdue Online Writing Lab, n.d.-a).

Does reading aloud actually help catch errors?
Yes; reading aloud "forces you to say each word and also lets you hear how the words sound together," which surfaces missing words and awkward phrasing that silent reading tends to skip over (The Writing Center, University of North Carolina at Chapel Hill, n.d.).

Should I proofread on screen or on paper?
University of Sheffield guidance notes "it may be easier to spot mistakes if you proofread from a paper printout of your text rather than from a screen version" (University of Sheffield, n.d.), because the change in medium breaks the familiarity that lets errors hide.

Can I use a grammar checker to proofread my assignment?
Basic spelling and grammar checking that flags errors without rewriting your sentences is generally fine, since it "do[es] not significantly alter the content of your ideas" (Birmingham City University, 2026). Tools that rewrite or generate sentences for you are a different matter, because relying on them can make it hard for your marker to assess how well you understood the material yourself (Birmingham City University, 2026); check your own institution's policy before using any tool beyond surface-level flagging.

References

Share this articleFacebookLinkedInZaloEmail
Back to All ArticlesAsk a MAAS expert ▸
Want guidance like this?

From this article
to your dissertation.

A 15-minute discovery call — our PhD & Master experts translate this framework into your specific topic and supervisor expectations.

Book Free Discovery ▸Meet Our Experts →