If you are reading this, you have probably just got your IB results back, realised you need to retake one or more IB exams, and hit the single hardest part of the whole process: finding a school or exam centre for your IB retakes. Maybe your old school will not register you, maybe you have moved country, or maybe you simply do not know where you can sit your IB retake exams. Whatever brought you here, you are in the right place. This guide explains exactly where to retake your IB exams, how to find an IB World School that accepts retake candidates, and how Lanterna can register you at our own UK exam centre so you have a confirmed place to sit.

Before we dive in, a quick reminder that improving your IB score involves two possible routes:

• Remarks – asking IB examiners to re-review your IAs and exam papers in the hope your results improve. Read our IB remarks guide for that route.
• Retakes (also called resits) – re-sitting one or more exams in a future session. "Retake" and "IB resit" mean the same thing. If you have chosen this route and need to know where to retake or resit your IB exams, this is the article for you.

First things first: your grade does not define you. Students all over the world retake IB exams because the Diploma Programme is genuinely demanding. Needing a retake exam centre is completely normal, and the good news is that you have more options than you think.

If you would rather skip straight to a confirmed place, Lanterna can register eligible students at our UK partner exam centre for the November session and pair that with expert retake tutoring. You can book a free retakes consultation here. Now, let's walk through your options.

Where to Retake Your IB Exams: Finding a School or Exam Centre for IB Retakes

You cannot sit IB exams on your own. Every retake has to go through an IB World School that acts as your exam centre and handles your official IB registration. According to the IB, you can retake a subject in any future examination session and at any IB World School offering the Diploma Programme, but no school is obliged to accept retake candidates. That single rule is why so many students search for a school for IB retakes and come up empty. Below are the three realistic ways to find your exam centre.

1. Retake at your original IB school

The simplest option is to retake your IB exams at the same school where you first sat them. Your DP coordinator already has your candidate records, so registration is usually straightforward. Speak to them as soon as your results are out. Be aware, though, that many schools do not register graduates, do not run the session you need, or set internal deadlines well before the final IB dates.

2. Retake IB exams at a different school (external or private candidate)

If your old school cannot or will not host you, you are allowed to retake your IB exams at a different school as an external or private candidate. The catch is that finding one is on you, and it can be genuinely difficult. Schools are not required to take on outside retake candidates, availability varies by subject and session, and many coordinators are unreachable over the summer. If you go this route, contact as many local IB World Schools as possible, as early as possible, and confirm subject availability, fees, deadlines and whether they accept private candidates.

3. Retake at the Lanterna UK exam centre

This is where we can take the hardest part off your plate. Lanterna can register eligible students as candidates at our partner school in the UK, giving you a confirmed exam centre for your IB retakes in the November session without cold-emailing dozens of coordinators. We handle the registration through the IB World School, guide you through the paperwork, and pair it with retake tutoring so you actually improve your score once your place is secured. We cannot sit your exams for you or complete your non-examined work, but we can give you somewhere to sit and the support to succeed. Book a free consultation to check your eligibility.

5 Important IB Retake Dates Every Candidate Should Know

Timing is everything when you are hunting for a retake exam centre, because school registration deadlines close long before the final IB dates. Mark these in your calendar and always confirm exact dates with your DP coordinator.

Results day (early-mid July)

May-session IB results are released. This is the moment to decide between a remark and a retake and to start your exam centre search immediately.

July to late July

The cheapest window to register for November retakes. Registering early avoids late registration fees, which are charged per subject or core element.

July to mid-September

The window to request a remark (enquiry upon results). This must be submitted by your DP coordinator, so do not leave it late.

Final November registration deadline (autumn)

The last date the IB accepts candidate registrations for the November session. After this, no registrations are accepted regardless of when you first sat the exams. Remember: your school's internal deadline is usually much earlier.

November exam session begins

The November IB exams start. If you miss registration, your next opportunity is the following May session.

For May retakes, the pattern shifts: early registration usually closes around the end of January and the final IB deadline falls in mid-April. Because schools and coordinators are often away over summer, finalise your plans before the holidays and never leave a retake registration to the last minute.

Useful links for IB retake candidates

• IB official guidance on retaking examinations
• Lanterna IB Retakes & Exam Centre
• Lanterna IB Retake FAQs
• Lanterna Retake Accelerated Programme

How to Register for IB Retakes as a Private Candidate

Whichever exam centre you choose, the registration itself always runs through an IB World School. Here is the practical path:

• Confirm your subjects, levels and target session (November or May).
• Check whether the subject is offered in your chosen session, and whether it has a curriculum change (if so, you follow the new curriculum).
• Contact an IB World School that accepts external or private candidates, or ask Lanterna to register you at our UK partner exam centre.
• Provide your candidate details, previous results, and identity documents.
• Decide whether you are only re-sitting exam papers or also resubmitting an IA (resubmitting usually means attending classes at the host school).
• Confirm fees and the internal deadline before you commit.

Remember that your highest grade in each subject is the one that counts toward your diploma, so a retake can only help your final result.

Finding an Exam Centre Is Only Half the Job

Securing a seat gets you into the room. Turning a retake into a genuinely higher score is a different challenge, and it is where most students need support. Lanterna combines both: a UK exam centre where eligible students can register, and one-to-one online tutoring with experienced IB teachers and examiners who know exactly how the mark schemes work. A student success coach builds your revision plan and guides you through the whole retake process, and our Retake Accelerated Programme runs small, exam-focused workshops in the weeks before each session.

Get in Touch with Lanterna Education

If you need a school or exam centre for your IB retakes and want the preparation handled at the same time, we would love to help. Our team has years of experience coordinating retakes, and we can tell you honestly whether a retake or a remark is the smarter move for your situation. Book your free retakes consultation with our Retakes Coordinator and walk away with a clear plan, a confirmed exam centre option, and a route to the score you need. There is no obligation to book tutoring afterwards.