How to Study Spelling for IELTS, and When It Costs More Than Grammar

You heard "accommodation" clearly in the Listening test, you understood the question, and you wrote the answer in the box. When the results came back you were one mark below the band you needed, and somewhere on the answer sheet was "accomodation", with one m. That answer scored exactly what a blank would have scored.

Most IELTS candidates spend months on grammar and almost no time on spelling, because spelling feels like something they should already know. Yet spelling touches three of the four papers, and in two of them it works like a switch: the answer is either spelled right and scores, or spelled wrong and scores nothing. This guide explains exactly where spelling costs marks in IELTS in 2026, where it does not, and how to study it in about ten minutes a day.

We will also be honest about the title. Spelling does not matter more than grammar everywhere in the test. In Writing, grammar has a whole scoring criterion to itself, and spelling shares one with vocabulary. But in Listening and Reading, one wrong letter can cost you more than a grammar slip ever would, and that is where many candidates lose marks they never knew they were losing.

Where spelling costs marks, paper by paper

Listening. The test has 40 questions, one mark each. For any answer written in words, the spelling must be correct to get the mark, and there is no partial credit for being close. Your answer must also fit the grammar of the gap and stay within the word limit. Two or three spelling mistakes can be the difference between two half-bands, because the raw-score gap between, say, 6.5 and 7 is often only a few marks.

Reading. The same rule applies to the completion questions, where you copy words from the passage into a gap. It sounds impossible to misspell a word you are copying, but candidates do it constantly under time pressure: dropping a letter, swapping two, or turning a plural into a singular. The word is right there on the page, which makes the lost mark especially painful.

Writing. Spelling is part of the Lexical Resource criterion, which is one quarter of your Writing score. The official band descriptors describe spelling at every level. At band 7, "there are only a few errors in spelling and/or word formation, and they do not detract from overall clarity." At band 6 there are "some errors" that "do not impede communication." At band 8, errors are "occasional" and have "minimal impact." Frequent errors that make the reader work pull you toward band 5, where they "may cause some difficulty for the reader."

Speaking. Spelling plays no part in your Speaking score. The examiner hears you; nobody sees your spelling.

So does spelling matter more than grammar?

It depends which paper you mean, and it is worth being precise.

In Writing, no. Grammatical Range and Accuracy is its own criterion, worth a quarter of the Writing score, while spelling is one element inside Lexical Resource alongside range of vocabulary, word choice and word formation. A few spelling slips in an otherwise strong essay will not drag you down a whole band. Weak grammar across the essay will.

In Listening and Reading, spelling behaves differently, and this is the real point of this article. A grammar error in a Writing essay costs a little, spread across a criterion. A spelling error in a Listening answer costs the whole mark, every time, with no examiner judgment involved. Candidates who have heard and understood the answer lose marks purely because the word was not automatic.

That is why spelling is so good to study. It is narrow, it is fixable in weeks, and the marks it rescues in Listening and Reading are marks you have already earned with your ears. For a closer look at the Listening marking rules, read how one wrong letter costs you the mark in IELTS Listening.

British or American spelling: the real rule

Last year's version of this article said British spelling is "standard" for IELTS and strongly recommended. That was wrong, and it has worried many candidates who learned American English.

IELTS accepts both. The official IDP guidance says plainly that "both forms of vocabulary, spelling, and grammar are accepted on the IELTS test." Colour and color, centre and center, organise and organize, travelling and traveling are all marked correct, in Listening and Reading answers as well as in Writing.

What you should do is pick one style and use it throughout. The descriptors do not list "mixing" as a separate penalty, but an essay that says "color" in one paragraph and "colour" in the next looks like shaky control of the language. If you learned British spelling at school, keep it. If you learned American, keep that. Switching now only adds a new source of mistakes. The full set of differences is in the Writing Task 2 guide to British and American spelling.

The words worth studying first

IELTS is not a test of the whole dictionary. The same topic areas come back again and again: education, work, the environment, health, housing, travel and government. The words that carry those topics are the ones worth drilling, and most of them have one specific trap.

Notice how few of these are hard all the way through. "Government" is simply "govern" plus "ment", so once you see the root, the silent n stops being a mystery. "Maintenance" catches people because it looks like it should keep "maintain" intact, and it does not. Knowing exactly where each word bites is what lets you check it in two seconds on test day.

Do not stop at a generic list, though. The words that matter most are your own repeat offenders, the ones you misspell whenever you are tired or rushed. How to find your own worst spelling words shows how to collect them from your practice essays and answer sheets in about twenty minutes.

Why rewriting a word ten times does not work

The traditional way to fix a misspelling is to copy the correct version out again and again. It feels productive, and it does very little. Copying uses the word in front of you; it never asks your memory to produce it. The test asks your memory to produce it, under time pressure, with no model to copy.

What works is retrieval practice: trying to write the word from memory, then checking. In a much-cited 2006 study, Henry Roediger and Jeffrey Karpicke found that students who tested themselves on a text remembered far more of it a week later than students who used the same time to reread it. A 2023 study by Francine Veiga da Silva and colleagues found the same advantage for spelling specifically, in Brazilian fifth graders: practicing by writing words from memory beat studying them again. Every time you pull a spelling out of memory, it gets easier to pull out the next time.

The second ingredient is spacing. Nicholas Cepeda and colleagues reviewed hundreds of experiments in 2006 and found that practice spread over days produces far stronger memory than the same practice crammed together. For spelling, the rhythm that works is simple: test a word tomorrow, then in about three days, then in a week, then in a month. Get it wrong at any point and it goes back to tomorrow.

In 2013, John Dunlosky and colleagues compared ten popular study techniques and rated just two as highly effective: practice testing and spaced practice. Rereading and highlighting came near the bottom. That is the whole method, in two lines.

A ten-minute daily routine

Here is a routine that fits around the rest of your IELTS preparation and uses both principles.

1. Start with review. Have someone read out, or play a recording of yourself reading, the words that are due today. Write each from memory, then check against your list.
2. Move any word you got wrong back to tomorrow. Move each word you got right one step further out: one day, three days, a week, a month.
3. Add three to five new words from your personal list or from the table above. Say each one, notice its trap, then cover it and write it.
4. Finish with one or two minutes of dictation from a Listening practice test with a transcript. Pause after each sentence, write it, and check it letter by letter. Every mistake joins your list.

Keeping the schedule by hand works well in a notebook with columns for dates. Spelling.School does the same scheduling automatically: a clear voice says the word, you type it, and the app shows which letters went wrong and schedules the word for review with spaced repetition. Either way, the ingredients are the same: hear it, produce it, check it, and meet it again at the right time.

Practice under light pressure

Some words you can spell perfectly at your desk and misspell in the exam. That is not a mystery. When your attention is on the meaning of a Listening passage or the argument of an essay, there is less left over for letter order, and any word that is not fully automatic slips.

So once a word is reliable in your daily review, test it under a little pressure. Write it inside a timed paragraph. Do dictation at normal speed without pausing. Write a Task 2 introduction in eight minutes and then check every word you were unsure of. You are aiming for spelling that survives when your mind is somewhere else, because in the test it always will be.

A related trap is word pairs that sound alike and mean different things: affect and effect, principle and principal, advice and advise, lose and loose. These are spelled correctly as words, so no checker would flag them, but the wrong one in your essay is a vocabulary error in the examiner's eyes. Affect or effect and forty other confused pairs settles the common ones with examples.

Habits on test day

On the paper-based test, you write Listening answers on the question paper as you listen, then get ten minutes at the end to transfer them to the answer sheet. Use that time to check spelling, plurals and word limits, not just to copy. On the computer-delivered test you type directly and get only about two minutes at the end, so check each answer as you go.

In Reading there is no extra transfer time on paper, so write answers straight onto the answer sheet. On either version, copy words from the passage letter by letter and check that the ending fits the gap.

In Writing, leave two or three minutes at the end of each task to reread for spelling alone. Read slowly, and look hardest at your personal trap words. If you are unsure of a word and have a simpler one you can spell confidently, it is usually wiser to use that one than to risk a mistake, although it is better still to fix the word before the test.

And never leave a Listening or Reading gap empty. A blank is always zero. A careful attempt is sometimes right.

What to do next

Take the last two practice tests you did. Go through your Listening and Reading answers and your Writing tasks, and list every word you misspelled, even once. That list, not any generic list, is where your marks are hiding. Test yourself on it tomorrow from memory, then again in three days.

For the specific mistakes candidates make most often, ten IELTS spelling mistakes every candidate makes is a good companion. And if you would like the words read aloud and the reviews scheduled for you, you can try five words free on the Spelling.School home page, with no sign-up.

Questions people ask

Does spelling count in IELTS?

Yes, in three of the four papers. In Listening and Reading, an answer written in words must be spelled correctly to get the mark, with no partial credit. In Writing, spelling is part of the Lexical Resource criterion, which is a quarter of the Writing score. Spelling does not affect your Speaking score.

Is spelling more important than grammar in IELTS?

Not in Writing, where grammar has its own criterion worth a quarter of the score and spelling is only one part of the vocabulary criterion. In Listening and Reading, however, a single spelling mistake costs the whole mark for that question, which grammar rarely does. That makes spelling one of the cheapest ways to recover lost marks.

Does IELTS accept American spelling?

Yes. IELTS accepts both British and American spelling in every paper, so color and colour, center and centre, and organize and organise are all marked correct. Choose one style and use it consistently, because switching between them in one essay looks like weak control of the language.

How many spelling mistakes are allowed for band 7 in IELTS Writing?

There is no fixed number. The official band descriptors say that at band 7 there are only a few errors in spelling and word formation, and they do not detract from overall clarity. At band 6 there are some errors that do not impede communication, and at band 8 errors are occasional with minimal impact.

How can I improve my spelling for IELTS quickly?

Collect the words you have actually misspelled in practice tests, then test yourself on them from memory every day, bringing each word back after one day, three days, a week and a month. Add dictation from Listening transcripts to catch new problem words. Ten minutes a day for three or four weeks fixes most personal problem lists.

Is a misspelled answer in IELTS Listening marked wrong?

Yes. If an answer is written in words and misspelled, it is marked wrong even if you heard and understood it perfectly, and it scores the same as a blank. Numbers can be written as digits, which removes the spelling risk for dates, prices and phone numbers.

Fix the words you actually get wrong

A few minutes a day, spaced repetition, built only for spelling. Try five words without signing up.