Can You Go 10% Over the Word Limit?

You've heard "10% either way is fine." At some universities, for some assignments, that's true. But it's not a universal rule. Some schools give 10%, some only 5%, some deduct marks the moment you go a word over. A few don't penalise: they just stop reading once you pass the limit. Being under is split the same way: some places don't mind, some penalise that too.

The only reliable answer is on your assignment brief, and several of the pages quoted below say so outright.

The 10% figure does show up in real university guidance, and where it does, it comes with a qualifier. The University of Westminster's library Referencing FAQ puts it like this:

Check your assignment guidance to see whether there is an allowance for exceeding the stated word count. An allowance of up to 10% is quite common.

Westminster says "up to 10%" and calls it "quite common" rather than guaranteed. Torrens University Australia, in its Academic Skills FAQ for coursework assessments, goes further: 10% in both directions, meaning writing too few words is penalised too.

The word count limit generally allows for a 10% (+/-) margin. This means that if you have to write a 1,000-word report, you need to write between 900 words and 1,100 words.

Avondale University's library guide also mentions "a latitude of 10% on either side" but prefaces it with "usually." So even where 10% appears, it's hedged.

Not every school gives you 10%. Some give 5%, some penalise from the first word over, and the penalty structures are all different.

• University of Edinburgh, School of Social and Political Science — all SPS coursework, 2024/25 onwards. Five marks deducted for exceeding the word limit, "regardless of how many words over the limit the work is (whether it is by 1 word or by 500!)." Other schools at Edinburgh set their own rules; MSc dissertations are handled separately.
• University of Auckland, Faculty of Law — LLB written work. A 5% leeway above the limit, then 5 marks deducted for every 10% (or part thereof) over that. The faculty recommends "sticking closely to the given limit rather than using all the words up to the 5% leeway." The same university's Faculty of Education and Social Work gives 10% — different faculties, different numbers.
• SOAS University of London — taught-degree coursework, including essays, reports, and dissertations. Over by more than 10% up to 20%: lose 10 percentage points. Over 20% up to 30%: lose 15 percentage points. Over 30%: "The work will be assigned a grade of 0."

These three are all different. The margin depends on the school, the faculty, and the kind of work. If you're at Edinburgh in a different school, SPS's five-mark penalty doesn't necessarily apply: check your own school's guidance. At Auckland, the law faculty's 5% isn't the education faculty's 10%.

Some schools skip penalties entirely. The marker just stops reading. St George's, University of London sets this out for all its degree programmes (policy approved June 2023):

Students who exceed the prescribed word limit will have their work marked but markers will stop marking when the word count exceeds the maximum word count set for that assignment.

Anything past the limit isn't read, receives no marks, and gets no feedback. Manchester's Alliance Manchester Business School uses a version with a margin, for postgraduate coursework and dissertations:

Rather than applying a penalty to a piece of written coursework or dissertation that exceeds the word-limit, markers will use a "guillotine" system. Under this system, markers are not required to consider anything written after the word limit has been passed by more than 10%. For example, if the question requires a 2,000-word answer, anything you write after the 2,200-word mark has been passed may be ignored.

AMBS gives you 10% before the guillotine drops; St George's stops at 100%. Even where a margin exists, extra words might not count for anything — wasted effort, not just a lost mark.

Being under is a separate question, and again it depends on where you are.

• Not penalised:
• Edinburgh SPS: "You will not be penalised for submitting work below the word count limit."
• St George's: "Assignments which are below the word limit set for an assignment will not attract a specific penalty."
• AMBS: "You will not be penalised for answers that are shorter than the limit."
• Auckland Law: "There is no penalty applied for an assessment falling under the word limit."
• May be penalised:
• Torrens University Australia: writing below the 10% lower margin is penalised too (see above).
• Maynooth University, School of Modern Languages, Literatures and Cultures (2023–24 handbook): "In general, in excess of 10% under or over word count can incur a penalty; however, this may vary, and you should carefully check the assignment brief for guidance."

The schools that don't penalise still warn that short work scores lower on its own merits. Edinburgh SPS notes that "shorter essays are unlikely to achieve the required depth and that this will be reflected in your mark." St George's calls significantly under-length work "normally self-penalising." Without a formal penalty, being well under still costs you marks.

Based on what these sources tell us, our read is: write to the stated limit, not to the margin. Declare your word count honestly. If your brief doesn't mention a margin, ask.

• Check your assignment brief for the limit and any margin. If it doesn't mention one, ask your tutor or learning facilitator.
• Know what counts toward your word count: different tools count differently. See why word counts differ between Google Docs and Turnitin and whether your reference list counts.
• Declare your actual word count accurately. Edinburgh requires it on the coversheet; SOAS treats "significant inaccuracies in declared word counts" as an offence under its Academic Misconduct Policy; St George's reserves the right to invoke disciplinary proceedings for missing or inaccurate word counts.
• If you're already over, see our guide on how to shorten an essay to a word limit.

If you need to bring the count down, HumanPen's condense tool accepts .docx files and works toward a target you set. Its guidance suggests configuring the target below your real limit: for a 2,000-word limit, configure 1,900, and a slight overshoot still stays within 2,000. It's best-effort, so a small overshoot is possible, but the buffer gives you room.