An invitation to an assessment centre is where the paperwork stops mattering. Your grades have been checked, your numerical test passed and your recorded answers watched, and nothing on the day re-examines any of it. What is still open is narrower and harder to revise the night before: whether you can be worked with, and whether you can reach a conclusion in front of people watching you reach it.
What has already been decided before you arrive
You are past the volume stage. Aon's UK graduates page, read on 2026-09-10, sets out six stages, and its fourth is shortlisting: "If your video submission is successful, you will be placed on a short list, which the business will review to fill places at our assessment centres. We cannot guarantee places at assessment centres for all candidates due to the volume of strong applicants." The shortlist is longer than the places, and everyone in the room got there the way you did.
The day can also end the process in either direction. Aon's fifth stage: "Next, we'll put you to the test through a range of group and individual exercises. Depending on your performance, you could be offered a position at this stage." Its sixth is conditional, "In some instances, you may be invited to a final formal interview", so the centre is not always the last hurdle.
One warning on the same page is worth acting on now: "Apply early! Assessments Centres begin prior to closing dates and applications may close early if roles are filled." Centres run while applications are still open, so the cohort you are compared with depends partly on when you applied.
The exercises that recur, and what each one is marking
Firms assemble the day from a small set of exercises. The names change; the scoring rarely does.
| Exercise | What it looks like | What it is actually marking |
|---|---|---|
| Group exercise | A shared brief, a fixed clock, assessors around the walls | How you behave towards people who are competing with you |
| Case study and presentation | A data pack, a question, a recommendation to deliver | Whether you conclude, and whether you can be challenged on it |
| Written exercise | Explain a technical result in plain English to a lay reader | Translation, which is the job |
| One to one interview | Motivation, competency, strengths | Whether your written answers were yours |
| Technical or numerical assessment | Supervised, on paper or on screen | That your unsupervised score was real |
| The informal parts | Lunch, an office tour, a chat with a current graduate | Consistency, mostly |
The vocabulary is not invented firm by firm. Hymans Robertson's early careers page, read on 2026-09-10, states: "We use SHL as a provider for our psychometric assessments." SHL's own assessment and development centres page, read the same day, sells employers "simulations, group exercises, client meetings, and more". So when a firm publishes nothing about its day, assume the day comes off that list.
Two published days, in the employers' own words
Most firms describe the stage in a sentence. Two publish enough to plan against.
Lloyd's of London: five mornings across two months
The Lloyd's actuarial graduate scheme page, read on 2026-09-10, publishes the whole timeline: applications open January 2026, an "Online strengths-based assessment" in February, "Video interviews" in March, then in March or April an "In person Assessment Centre at the Lloyd's of London building".
Then the sentence that changes how you prepare: "You will need to be available to attend an assessment centre on one of the following mornings: 20th March, 27th March, 10th April, 17th April, or 24th April."
Five dated mornings spanning two months, published before applications opened. A morning rather than a day means compressed exercises, and dates published that far ahead mean a clash with an exam is a conversation you can have early rather than an emergency in March. Applications are now closed, so this is the cycle just gone: the shape to expect, not a promise about the next one.
APR: two hours, three exercises, no group work
APR's graduate associate scheme page, read on 2026-09-10, lists four stages: a CV and cover letter, where the page warns "we will not consider applications without a suitable covering letter"; an online test that "Assesses numerical and verbal reasoning skills"; and a telephone interview with "a senior member of staff" on "your reasons for applying to APR, as well as industry and technical knowledge."
Then the centre, "An intensive two-hour virtual session (but in-person is able to be carried out too)", where "You will be asked to give a presentation on a topic of your choice, have a face-to-face interview, and take another technical assessment."
No group exercise at all. The presentation is the most controllable exercise in this article, because you choose the material. And a second technical assessment on the day, after an online one earlier, is the clearest published case of a firm checking a score it did not watch you earn.
The rest, in one line each
| Employer | What its own page says the stage is |
|---|---|
| LCP | "Selected candidates will be invited to an in-person assessment centre with their chosen department." |
| WTW | "Stage 3: Attend a virtual assessment centre, where you'll meet members of the team" |
| KPMG | "Launch Pad, an in-person, half day event" |
| Broadstone | At an office: "You will be joined by a co-ordinator from our HR team, as well as assessors from the hiring team." |
| Isio | No centre published at all: the four stages end with an "In-person interview" |
All read on 2026-09-10. The Isio row is the one people miss: not every actuarial employer runs a centre, and preparing for a group exercise that does not exist is a wasted evening. Read the process page for the firm you applied to, not for the sector.
The case study: how to spend fifteen minutes of preparation
A pack, a question, a short window. The window is where candidates lose the exercise, usually by reading everything.
- Minutes nought to three: read the question, not the pack. Write it at the top of your page in your own words. Every mark is for answering that.
- Minutes three to eight: find the two or three numbers that decide it. The pack holds more than you need, and choosing is being assessed.
- Minutes eight to eleven: do the arithmetic, then sanity check it. A ratio implying a firm spends five times what it earns is an error, and catching it yourself scores better than being told.
- Minutes eleven to fourteen: write your first sentence in full. Not notes. The sentence.
- The last minute: write down the two most obvious attacks on your answer. Someone usually makes one of them.
That first sentence has a shape, the one our communication course teaches: the recommendation first, with a verb someone can act on, a size and a date. "We recommend increasing motor rates by 12% from 1 January, phased over two renewal quarters" is a recommendation. "The analysis suggests rates are inadequate" is a finding in a recommendation's clothes, and it hands the decision back to whoever asked you.
Then the reason in no more than two facts, then what you rejected and why, which is the part that gets you believed, then what would change your mind, as a number and a date rather than a hedge. The failure that looks like diligence is three options, balanced pros and cons and no view: you did the work, then declined to advise.
The group exercise: the two behaviours that get people marked down
They are opposites, and they are the same mistake.
Dominating. Winning the argument is not on the sheet. If the group adopts your ranking because you talked over two people to get it, you have traded marks for an outcome nobody is scoring.
Disappearing. Saying almost nothing produces no evidence at all: a quiet candidate and a candidate with nothing to say look identical from the back of the room.
Contributing without dominating is structural, and visible from anywhere in the room. Propose a shape with timings in the first two minutes. Say where the clock is at halfway. Ask the person who has not spoken what they make of the point on the table, once, and mean it. Summarise the group's position before the deadline. None of that needs the loudest voice, and each of them is something an assessor can write down.
Two caveats. Those four moves are our coaching view, not a quoted fact from any employer. And assessors usually watch one or two named candidates rather than refereeing the discussion, so behaving well towards the group beats being seen to lead it.
What to bring, what to ask, and the last ten minutes
Bring the dull things: a printed copy of your application, photo ID if the building needs it, paper and two pens, and the exact figures you claimed on your CV. Exam results, exemptions and module marks come up, and hesitating over your own numbers is a bad look in this profession.
On clothes, most firms publish nothing. LCP's graduate FAQs, read on 2026-09-10, answer "What is the dress code?" with the firm's working rule for staff: "We ask employees to 'dress appropriately for your day'." That is employee policy rather than instructions to candidates. Where nothing is published, smart is the risk-free default.
Have two or three questions only this firm can answer: what a graduate does in the first six months, how study support works after a failed sitting, what separates a strong first year from an average one. Keep salary for the recruiter.
Then the last ten minutes, which candidates treat as over. Broadstone's page names who is in the room: "a co-ordinator from our HR team, as well as assessors from the hiring team". The graduate showing you round may not be one of them, and their impression travels anyway. Be the same person at lunch that you were in the group exercise, and ask before you leave when you will hear.
After it: what a rejection here means, and what it does not
It means the day did not go well, or the cohort you were compared with was strong, or both. Given Aon's warning that centres begin before closing dates, that cohort partly depends on when you applied.
It does not mean the door is shut. LCP's FAQs answer "If I am not successful, can I reapply?" with: "You are welcome to reapply to LCP the following year when applications open for the next graduate programme."
It is also the one stage where you can find out why. LCP again: "Yes, we will provide feedback after the assessment centre; however, unfortunately we are unable to provide feedback after the applications and testing stages." If a firm offers feedback here and you do not ask, you have thrown away the only diagnostic in the process.
What a rejection here is not is evidence about the exams, or about whether you can do the work. It is evidence about one morning.
What to do next
Practise out loud against a clock, because that is what the day tests and reading cannot train. Our free interview question generator hands you one question at a time and holds the guidance back until you have committed to an answer, and the interview questions guide covers what each kind of question is asking for. The interview cheatsheets carry the practice-area material, dated.
Then get the timing right: the UK actuarial tracker holds the current application windows, and Lloyd's mornings show how far ahead centres are booked. If you want a person marking your answers, a mock interview puts an actuary on the other side of the questions, and the written feedback is yours to keep.