The honest answer is that it depends almost entirely on where you are starting, and anyone who quotes you a number before assessing you is guessing. That said, "it depends" is useless advice, so here are the actual ranges we see in IELTS test preparation, and what determines which one you fall into.

The short version

If you are within half a band of your target, three to four weeks of focused work is usually enough. If you need a full band, plan for two to three months. If you need more than a band and a half, you are not really preparing for a test — you are improving your English, and that is a different project with a longer timeline.

Why the starting band matters more than the target

Most candidates think in terms of the score they need. The more useful question is the gap. Going from 6.0 to 6.5 is a matter of technique: understanding what the band descriptors actually reward, fixing structural habits in Writing, and not losing marks to time pressure in Reading. That is learnable in weeks.

Going from 5.0 to 7.0 is not a technique problem. At 5.0 the underlying language is the constraint, and no amount of exam strategy will carry you two full bands. Candidates in that position who book a four-week crash course almost always retake, having spent money twice.

The four modules do not improve at the same speed

This is the part most study plans get wrong. Listening and Reading respond quickly to practice, because they are largely about familiarity with question types and managing the clock. Two to three weeks of daily practice moves them noticeably.

Writing is the slowest. It is the module where most candidates plateau, and it is the one that drags the overall score down. Task 2 in particular rewards a specific kind of structured argument that has very little to do with how well you write in your own language. It needs repeated feedback from someone who knows the band descriptors — self-study rarely fixes it, because you cannot see your own blind spots.

Speaking sits in between. Fluency improves with practice, but Part 3 — the abstract discussion — catches out candidates who prepared only for Part 1 topics.

A realistic four-week plan

This assumes you are half a band off and can commit around ten hours a week.

  • Week 1 — full diagnostic under exam conditions, then Reading and Listening question types
  • Week 2 — Writing Task 1 and Task 2 structure, with at least three pieces marked against the descriptors
  • Week 3 — Speaking parts 1 to 3, plus timed Reading practice
  • Week 4 — two full timed mocks, reviewed question by question

What actually wastes people's time

Three habits come up again and again. Memorising vocabulary lists, which fades within weeks and produces essays that read as though words were bolted on. Doing practice tests without marking them properly, which builds familiarity but not improvement. And practising the modules you are already good at, because they feel better to do.

The single highest-return activity is getting Writing marked by someone who can point at a descriptor and say precisely why the response sits at 6.0 rather than 7.0.

Academic or General Training?

Academic is for university study. General Training is for migration, work and most permanent residency applications. The Listening and Speaking modules are identical; Reading and Writing differ. The General Writing Task 1 is a letter with its own conventions, and candidates who prepared with Academic materials lose marks on it without understanding why. Check which one your institution or immigration programme requires before you book anything.

When to book the test

Book it once your practice scores are consistently at or above your target — not before. A test date is a useful deadline, but booking one you are not ready for costs the fee and adds a retake to your timeline. If your application has a hard deadline, work backwards and leave room for one retake.

How we approach it

Every student starts with a full diagnostic across all four modules, because the plan depends on the gap and we cannot see the gap without measuring it. Time then goes to the modules holding the overall score down rather than being spread evenly. Writing gets detailed written feedback against the band descriptors, repeatedly. And if your target is not realistic in the time you have, we say so at the start rather than at the end.

Written by the Learning Bubble teaching team. If something here does not match your situation, ask us — we would rather give you a straight answer than have you guess.