Common IELTS Mistakes to Avoid (That Cost People Half a Band)
Most lost marks in IELTS aren’t about English ability — they’re small, avoidable slips. Here’s the full list, plus a free printable checklist.
After going through hundreds of practice tests and feedback sessions, the same mistakes come up again and again — and almost none of them are about not knowing English well enough. They’re about rules people didn’t know existed, time management slips, or simple carelessness under pressure. Fix these and most candidates see an immediate jump, no extra vocabulary required.
📋 Free Pre-Exam Mistakes Checklist (PDF)
A one-page printable checklist to run through the night before your test — covers all four sections.
Reading & Listening Mistakes
Going over the word limit
“No more than two words” is a hard rule, not a suggestion. Writing three words when the limit is two gets the answer marked wrong even if the content is otherwise perfect.
Copying the word with a spelling mistake
You found the right word in the passage but typed it slightly wrong. This is marked incorrect in both Reading and Listening, even though you clearly located the right information.
Confusing “Not Given” with “False” in True/False/Not Given
This is one of the most commonly misunderstood question types. “Not Given” means the information simply isn’t in the passage at all — not that it contradicts what’s written.
Running out of time on the last few questions
Spending too long on one difficult question in Reading or rereading a Listening section in your head (which you can’t actually do) eats time you need for the rest of the test.
Writing Mistakes
Not addressing all parts of the question
Task 2 questions often have two or three parts (“discuss both views and give your opinion”). Answering only one part, even brilliantly, caps your Task Response score significantly.
Writing under the minimum word count
Task 1 needs 150+ words, Task 2 needs 250+. Writing less results in a penalty, and writing barely over the limit often means underdeveloped ideas anyway.
Memorizing full essays or sample answers
Examiners are trained to spot memorized or template content, and it’s penalized under Task Response — especially when it doesn’t quite fit the actual question asked.
Speaking Mistakes
Giving one-word or one-line answers
Especially in Part 3, a short answer gives the examiner almost nothing to assess. It often also comes across as disengaged, even if that’s not the intent.
Stopping the Part 2 answer early
You get a full two minutes for the cue card. Finishing in 40-50 seconds means you likely haven’t shown your full range of grammar and vocabulary.
General / Exam-Day Mistakes
Not reading the on-screen instructions carefully on the CBT
The Computer-Based format has slightly different navigation, highlighting, and flagging tools than paper. Skipping the built-in tutorial can cost you time figuring things out mid-test.
FAQs
Keep practising
- Build your topic vocabulary: IELTS Vocabulary Words List (Band 7-9) with Free PDF
- Reading strategy: IELTS Reading Tips: Step-by-Step Guide
- Listening strategy: IELTS Listening Tips for the CBT
- Speaking strategy: IELTS Speaking Band 9 Guide
- Try a full timed test: free Computer-Based IELTS practice test