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If your IB results didn’t go as planned and this affects your university plans, don’t worry – there’s a retake session that gives you the chance to improve your grades and secure the future you’re aiming for.
IB Exam Retakes Explained
After exam results are released, students are allowed to retake exams to improve their scores. You can register as a retake candidate through your IB coordinator.
It is very important that you speak directly with your IB Coordinator if you are considering retaking any IB examinations. While IB schools are not obligated to accept retake applications, many schools do provide students with this opportunity. Your coordinator will be the best point of contact, as they can advise you on the most appropriate course of action based on your individual situation. They can also guide you on which subjects or specific components may be most beneficial to retake, taking into account your academic goals, university requirements, and future career plans. Receiving tailored advice from your coordinator will ensure you make the most informed decision moving forward. That said, this guide will equip you with a clear overview of the process and provide comprehensive information to support you as you plan your next steps, so keep reading!
When do IB Retakes take place?
There is no specific ''retake session'' nor are there special ''retake papers''. Students retaking exams will simply sit them along other students in the future examination sessions.
Students have the option to retake their IB examinations during either the May or November session. For example, if you originally sat your exams in May, you may choose to retake them in the following November session or wait until the next May session. The same applies if your original session was in November – you may resit the exams in the upcoming May session or in the next November session, depending on what works best for you.
How many times can I resit?
There is no limit for resits. You can resit exams as many times as you wish. The retakes also do not have to take place consecutively. So for example if you sat your exams in May you can retake in the November session and then again in the next November session next year.
Do I have to retake all exams at the same time?
First of all, you do not need to retake all exams. You can retake only the exams you wish. There is also no need to sit all of them in one session. So for example if you want to retake Economics and Chemistry, you can retake Economics in the upcoming session and wait with Chemistry for the session after that. The choice is fully yours. The way you organise your resits is totally up to you.
When is the best time to resit?
Deciding when to resit is ultimately a personal choice, and the best time is when you feel most prepared and confident. That said, in most cases we recommend resitting in the very next exam session. With six months between sessions, you have time to rest and recover from your initial exams, then return to revision while the material is still fresh in your mind. Resitting sooner also allows you to receive your new grades earlier, helping you meet university entry requirements without unnecessary delays.
School vs exam centre
If your school only offers examinations in one session (e.g., only May or only November), you may not be able to resit in a different session at your school. However, you can still register as a candidate at a dedicated IB exam centre. Speak to your IB Coordinator for the exact details and procedures.
Syllabus changes
Keep in mind that IB syllabi are updated every few years. If a syllabus change is approaching, it is usually best to resit in the very next session to ensure you sit the exam under the same format and content structure you originally studied.
If the change cannot be avoided, don’t panic – while exam formats may shift, the overall subject knowledge remains largely the same, with only minor changes. With proper preparation, adapting to a new syllabus is very manageable.
Application deadlines
If you sat your exams in May, applied to UK universities, and missed your offer conditions, the November session is strongly recommended. This is because November results are released on January 6, just over a week before the UCAS application deadline, giving you the chance to apply with your updated grades in the same admissions cycle.
Can you retake IAs?
Yes, you can also choose to retake Internal Assessments (IAs). The IB does not require you to repeat all components of a subject when resitting. Instead, you have the flexibility to retake only the external assessments (written exams), only the internal assessment (IA), or both, depending on what will best improve your overall grade. For specific details, make sure to speak to your IB Coordinator.
Can you retake IB Core?
Yes, you can also retake the Extended Essay (EE) and Theory of Knowledge (TOK) components. For the TOK Essay, keep in mind that the prescribed titles (prompts) change each examination session, so you will need to select a new prompt when rewriting your essay.
For the Extended Essay, you may either remain in the same subject area or choose a completely different one. However, your new EE must be substantially different from any work you have previously submitted – it cannot simply be a revised version of your original essay. This ensures that your resubmission represents original work that meets IB requirements. For more information, speak to your school's IB Coordinator.
Can you retake CAS?
Yes, it is possible to retake your CAS. The requirements remain the same.
Is resitting worth it?
The answer depends on your goals and circumstances.
If you need to improve your score in order to meet university entry requirements, then resitting is absolutely worthwhile. Achieving the necessary grades can open the door to your dream university and significantly shape your future opportunities.
On the other hand, if you have already achieved a strong score that meets the entry requirements of your chosen universities, then retaking is usually unnecessary. Resitting in this case may only add extra stress and require considerable time and effort that could instead be invested in other valuable pursuits – such as developing new skills, gaining work experience, improving your CV, traveling, or exploring personal projects and interests.
Ultimately, the decision is personal. If improving your score feels meaningful to you, you should pursue it. If not, focusing on your next steps in life may be the wiser choice.
Resit costs
The cost of resitting exams can vary depending on your school or exam centre. It is therefore important to speak directly with your IB Coordinator to get accurate information on the fees that apply to you.
Retake registration deadline
The registration deadline for retakes is usually around three weeks after results are released. This gives you some time to consider your options. However, if you are thinking about retaking, it is important to contact your IB Coordinator as soon as possible. Reaching out early allows you to discuss your options thoroughly and ensures that your coordinator has enough time to provide tailored advice and complete the registration process without unnecessary stress.
How to prepare for IB resits?
Reflect on your previous performance – Review your exam results, teacher feedback, and personal experience. Identify which areas you struggled with most, whether it was content knowledge, exam technique, time management, or nerves. This reflection will guide your revision plan and ensure you focus on the areas with the highest potential for improvement.
Check for syllabus changes – Before you start revising, make sure to verify whether the syllabus for any of your subjects has changed since your last exam. If it has, focus your preparation on the updated content and exam format to ensure you are fully prepared.
Set clear goals – Decide which subjects and components you are retaking and what grades you are aiming for. Keep in mind your university requirements so you know the exact score you need to achieve.
Create a structured study plan – Build a realistic timetable that balances review, practice, and rest. Prioritise weaker topics while still reviewing the material you are confident in. Break tasks into small, manageable goals to avoid feeling overwhelmed.
Practice with past papers – Use official IB past papers to familiarise yourself with question styles and exam timing. Mark your answers against official markschemes to see where you lose points and how to improve. Simulate exam conditions whenever possible to build exam confidence.
Revise actively, not passively – Use techniques such as summarising notes, teaching concepts aloud, creating flashcards, or practicing essay plans. Focus on application of knowledge rather than just memorisation.
Seek guidance and support – Work closely with your IB Coordinator and teachers for tailored advice. Consider tutoring if you need additional help in specific areas.
Look after yourself – Don’t underestimate the importance of rest, exercise, and good nutrition. Manage stress by balancing revision with relaxation and hobbies. A healthy mindset will make your preparation far more effective.
Learn from the past, but move forward – Avoid dwelling on mistakes from your first attempt and see them as lessons that will help you succeed this time. Approach your resits with fresh determination and motivation.
We hope you found this post helpful. For more useful materials associated with the IB check out the wide variety of IA, EE and TOK exemplars available at Clastify and other guides available on our blog.
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