How to Study for IELTS: Two Halves, One Band Score

To study for IELTS, prepare its two halves separately. Listening and Reading are 40 objectively marked questions each, so drill them against a raw score out of 40 and watch the count move. Writing and Speaking are judged by an examiner against four named criteria each, so study those criteria directly. The overall band is the average of all four.

That split is what makes IELTS unlike almost every other exam with a study guide attached to it. A test of recalled content has one currency, which is whether you know the material. IELTS has two. Half of it is a score you can count, and half of it is a judgement made against published descriptors by a person listening to you speak or reading what you wrote. Preparation that treats the whole thing as one test tends to over-serve the countable half, because counting feels like progress in a way that studying a descriptor does not.

How is IELTS scored?

Every section is awarded a band from 9 down to 0, and in the official wording the overall band score is “the average of the four section band scores rounded to the nearest half band”. Two tie-break rules finish it: an average ending in .25 rounds up to the next half band, and an average ending in .75 rounds up to the next whole band. The official IELTS scoring page publishes three worked examples, and they are the most useful thing on it.

• Test taker A. Listening 6.5, Reading 6.5, Writing 5.0, Speaking 7.0. The four add to 25.0, so the average is 6.25, which the tie-break rounds up to band 6.5.
• Test taker B. Listening 4.0, Reading 3.5, Writing 4.0, Speaking 4.0. The average is 3.875, which is nearer to 4.0 than to 3.5, so the award is band 4.0.
• Test taker C. Listening 6.5, Reading 6.5, Writing 5.5, Speaking 6.0. The average is 6.125, which is nearer to 6.0 than to 6.5, so the award is band 6.0.

Compare A and C for a moment. Their averages sit 0.125 apart, and they are awarded different bands. That is the whole shape of the IELTS scale: the certificate moves in visible steps, and every improvement between two steps is invisible on it. Working out the average your target band needs is therefore a genuinely useful hour, because it tells you how far you have to travel before anything you do shows up.

The IELTS test format, and the two ways it is marked

The IELTS Academic test page gives a total test time of 2 hours and 45 minutes, and says the format is the same whether you sit it at a test centre or remotely online. Listening runs approximately 30 minutes, Reading 60 minutes including transfer time, Writing 60 minutes, and Speaking 11 to 14 minutes. The Speaking and Listening tests are the same in IELTS Academic and IELTS General Training, while the Reading and Writing tests differ between the two.

Those four sections divide cleanly along the line that should organise your whole study plan, which is how each one arrives at a number.

Listening and Reading: the half you can count

Both sections contain 40 questions, each correct answer is awarded one mark, and the score out of 40 is converted to the IELTS 9-band scale. IELTS publishes the average marks associated with each band, which turns a vague goal into a number you can chase.

• Listening. Band 5 around 16 marks, band 6 around 23, band 7 around 30, band 8 around 35.
• Academic Reading. Band 5 around 15 marks, band 6 around 23, band 7 around 30, band 8 around 35.
• General Training Reading. Band 4 around 15 marks, band 5 around 23, band 6 around 30, band 7 around 35. IELTS explains the difference: Academic Reading may contain texts with more difficult vocabulary or greater complexity of style, so it is usual that more questions must be answered correctly on a General Training paper to secure a given band.

Read those numbers as a guide. IELTS is explicit that the precise number of marks needed will vary slightly from test version to test version, so a practice paper cannot promise you a band. What it can do is give you a count, and a count is something a study plan can act on. Climbing from band 6 to band 7 in Listening or Academic Reading is roughly seven more correct answers out of 40, which is small enough to feel reachable and specific enough to aim at.

Most of what closes that gap is error analysis. A paper you sat and never dissected has told you a score and nothing else, and the habit of going back through every wrong answer to name why it was wrong is covered in our guide to reviewing a practice test. Reading is also a clock problem, since the published allowance is 40 questions in 60 minutes and that hour has to absorb transfer time as well. Locating information under that pressure rests on the comprehension habits our guide to improving your reading comprehension is built to train.

Writing and Speaking: the half a person judges

There is no mark count here. An examiner awards a score against four published criteria, and IELTS names them.

• Writing. Task achievement for Task 1 and task response for Task 2, coherence and cohesion, lexical resource, and grammatical range and accuracy. Each task is assessed independently, the criteria are weighted equally, and the score on the task is the average of the four. The assessment of Task 2 carries more weight in marking than Task 1.
• Speaking. Fluency and coherence, lexical resource, grammatical range and accuracy, and pronunciation. Each criterion carries equal weighting, and the overall average gives the Speaking score.

Now line the two lists up beside each other, because the overlap is the single most actionable fact in IELTS scoring. Lexical resource appears in both. Grammatical range and accuracy appears in both. Two of the four equally weighted criteria in Writing are the same two criteria as in Speaking, which means vocabulary and grammatical range account for half of each of those section scores. Writing and Speaking are in turn two of the four sections averaged into the overall band. Multiply those together and roughly one quarter of the overall IELTS band comes down to those two criteria alone.

That is worth sitting with, because it reframes vocabulary work from a side activity into the highest-leverage thing on the judged half of the test. It also tells you what kind of vocabulary to build. Both shared criteria are applied to language you produce, since Writing and Speaking are the two sections where you generate the English yourself. A word list you can recognise is a weak proxy for that, and topic vocabulary you can deploy inside a Task 2 argument is the real target.

The other thing to do with these criteria is study them as material in their own right. If you have never read the descriptors you are being marked against, that is a gap worth closing early, because they name what the examiner has been instructed to reward. IELTS links the key assessment criteria and the fuller documents on how examiners assess the Writing and Speaking sections directly from the scoring page. Rehearsing a spoken task is its own discipline. The case for recording yourself and listening back to it is made in our guide to the spoken tasks on AP Spanish Language, which transfers almost directly to the IELTS Speaking test.

Which IELTS section should you work on first?

Be careful here, because the arithmetic gives a cleaner answer than most advice admits, and the answer is that the arithmetic does not care. The overall band is a plain mean of four equal parts, so half a band gained anywhere raises the average by exactly 0.125 and a full band raises it by exactly 0.25. A half band won in Speaking is worth precisely what a half band won in Listening is worth. Any guide that tells you to fix your weakest section because of how the average works has quietly made that up.

Test taker C above shows how sharp this can get. Sitting at an average of 6.125 and awarded band 6.0, C needs the four section scores to total 25.0 instead of 24.5 to reach band 6.5. That is one half band, in any one of the four sections, and every one of them gets there. Writing 5.5 becoming 6.0 works. So does Speaking 6.0 becoming 6.5, or either 6.5 becoming 7.0.

So let two real things choose instead of the mean. The first is what the receiving organisation actually asks for, because a requirement is sometimes worded across the four skills instead of as one average. The GOV.UK guidance on knowledge of English for a UK student visa tells an applicant who has no qualifying qualification, and who is therefore proving their English by sitting an approved test, that they must “prove you can read, write, speak and understand English to a certain level” on the CEFR scale, at level B2 for study at degree level or above and level B1 below that.

Be careful about what that does and does not establish. The page names the four skills inside the requirement, and it sets no separate per-component threshold and names no IELTS band at all. Treating it as a four-skill bar is an inference from how the sentence is worded, so use it as a reason to go and check the exact wording your own institution or visa route publishes, never as a rule you can apply from this page. Where a requirement is written that way, a section sitting well below the others is a problem no amount of overall average will rescue.

The second is that IELTS itself built a product around exactly this situation. IELTS One Skill Retake lets you retake one section on its own instead of sitting all four again. The conditions are specific: your full test must have been an IELTS on computer test at a centre offering the service, you must sit the retake within 60 days of the original test, and you get one retake per original test. You then receive a new Test Report Form carrying the updated score alongside the other three from the original sitting, and you choose which form to use. IELTS recommends checking that the organisation accepts a One Skill Retake result before you book.

Beyond those two, working on your weakest section first is a practical judgement, and it is worth naming as one. The reasoning goes like this: a neglected section is where you are least familiar with the task format, and format familiarity is quicker to build than language ability, so that is where a half band should come cheapest. Nothing here is evidence for that, and it is a guess about you specifically, so test it. Sit one timed section of your weakest skill and one of your strongest, then look at whether the gap between them behaves like unfamiliarity or like language.

How long is an IELTS score valid?

IELTS recommends that results are considered valid for two years after a test has been taken, and states the reason plainly: the recommendation is based on research into second-language loss. A recommendation is not an expiry date. Organisations that accept IELTS can choose to accept results for a longer period, so check directly with whoever is receiving yours.

Two years is long enough to matter to your planning. If your application deadline is eighteen months away, a test sat now is still inside the window, and sitting early leaves room for a retake or a One Skill Retake without a scramble.

What a study app can carry on IELTS, and what it cannot

Start with the refusals, because on a language test they are large. GeniusPal cannot hear you, so it does nothing at all for the Speaking test. It cannot mark an essay against the Writing band descriptors, cannot tell you whether your coherence and cohesion reached band 7, and cannot simulate a timed IELTS sitting. It does not supply official practice papers either. On each judged section, two of the four criteria sit outside what any question generator reaches: task response and coherence and cohesion in Writing, fluency and coherence and pronunciation in Speaking.

The actual function is narrow. Hand it a document carrying a real text layer and it writes questions from what it finds inside. Accepted formats are PDF, .pptx, .docx, .txt, .md, .markdown, and .csv, up to 10 MB, with no image upload and no audio. There is no OCR, so a scan of a handwritten vocabulary notebook or a photographed page of a coursebook gives it nothing to work from.

Inside that boundary there is one job on this exam that fits well, and the criteria are what make the case for it. Lexical resource and grammatical range and accuracy are half the marked criteria on each judged section and roughly a quarter of the overall band, and both are built from material that lives in documents you already have. Topic vocabulary for the Writing Task 2 subjects that recur, collocations, linking and signposting phrases, and the band descriptors themselves all convert into questions cleanly. Turning the descriptors into a quiz is the underrated one, since knowing what an examiner is instructed to look for is recallable knowledge like any other.

One caveat follows directly from the criteria argument above, and it is a real one. A quiz on a free account is entirely multiple choice, which exercises recognition, and recognition is the weaker half of what a criterion applied to language you produce is asking for. Producing the word unprompted is what the written short-answer mix and the recall mode do, and both of those sit on the paid plans. So on a free account treat this as vocabulary triage, good for finding out which words have not landed. Closing the distance between recognising a word and deploying it costs either a paid plan or a pen and a blank page.

How to make words stick is a separate craft, and two guides here already own it, so this one will not repeat them: memorising vocabulary covers the method, and studying a foreign language covers the daily input work that raises your ceiling on everything IELTS measures. Neither is IELTS-specific, and both matter more than any exam trick.

The numbers, so none of it surprises you. A free account gets 2 study-set generations for the whole life of the account, at 10 questions per set, and each set can be sat 2 times through. Quiz mode and the daily review are free on every plan, and on a free account a quiz is entirely multiple choice. Flashcards, written active recall, sets of up to 30 questions, and written short-answer items inside a quiz all need a paid plan, where the mix can be dialed to “A few written”, “Half and half”, or “All written”. Student is $14.99 a month for 100 generations a month, and Genius is $59.99 a year, shown as $5.00 a month, with a generation allowance running up to a fair-use ceiling.

Plan the two halves as the two different things they are. Against the counted half, chase the mark total and dissect every wrong answer. Against the judged half, read the eight named criteria, notice that two of them are the same two twice over, build the vocabulary those two reward, and keep a recorder running through your speaking practice.