Mensa Switzerland: admission test, costs and procedure

Mensa is an international society that selects its members by a single criterion: a test result in the top 2 per cent of the population. There is no interview, no application letter, no professional requirement. You either clear the threshold in a recognised test or you do not.

Mensa Switzerland is the Swiss branch of that society. It runs its own supervised admission tests, it recognises certain existing results, and once the threshold is met it sends an invitation to membership. Anyone in Switzerland who starts looking into it quickly runs into contradictory information, because much of what circulates online comes from Mensa Germany, where the conditions and the prices are different.

This text sets out what applies in Switzerland: which types of test exist, what they cost, from what age you may sit them, how long the result takes, and which results are not recognised. The last point is the most important one, and it concerns us too.

The binding source is the society’s own site at members.mensa.ch; the former address mensa.ch redirects there.

The threshold: the top 2 per cent

Mensa admits anyone who reaches a result in the top 2 per cent of the population in a recognised, supervised test procedure. On the common IQ scale with a mean of 100 and a standard deviation of 15, that corresponds to a value from 130 upwards. Once the threshold is reached, the invitation to membership follows.

That boundary is not an invention of the society but a customary cut. The classification of intelligence scores published in 2023 by Schulpsychologie Schweiz, the joint body of the cantonal school psychology services, also sets its top band at 130 and assigns it a percentile rank above 98. Arithmetically a value of 130 sits at the 97.7th percentile, which means that out of a hundred people, two to three reach it.

What the boundary is not: a statement about a human being. It is a club rule that puts a cut through a distribution, and two points above or below it fall inside the measurement precision of any procedure.

The three routes to admission

Mensa Switzerland offers two tests of its own and, alongside them, recognises an existing result. The conditions differ on every single point, including the age limit and whether a repeat is possible.

The reduction applies to students and to school pupils. The prices are as at 13 September 2026; it is worth checking the society’s site before registering, because conditions can change.

The non-verbal test

The non-verbal test works without any language element. It uses figural tasks, that is shapes and patterns instead of words. That makes it the obvious route for anyone whose first language is not German, which in practice means most of the English-speaking readers of this page, and for anyone who suspects a disadvantage on the verbal side.

It costs CHF 80.00, reduced CHF 40.00, is open from age 15, and can be repeated once, at the earliest after a year. That repeatability is the practical advantage over the second variant and is a good reason to start with the non-verbal test if you are unsure.

How figural tasks are built and which rules you solve them by is described in a separate text on matrix reasoning.

The multidimensional test with a German-language part

This variant covers several areas and contains a language section in German. It costs CHF 100.00, reduced CHF 50.00, and is open from age 14, a year earlier than the non-verbal test.

The decisive difference is in the small print: this test cannot be repeated. One run, one result, no second chance. Anyone who wants to keep both doors open therefore decides on the order before the first registration and not afterwards.

A language section depends more heavily on schooling and language environment than a figural section does. That is not a flaw in the procedure, but it is a property worth knowing when you choose, and it matters more here than it would in a country with one language of schooling. If you did not go to school in German, the language part is measuring your German as much as anything else, and the non-verbal test is the fairer instrument for you.

Prior Evidence: submitting an existing result

Anyone who already holds a result from a supervised, recognised procedure does not have to sit a new test but can have that result checked instead. The check costs CHF 60.00, reduced CHF 30.00, and is free for people under 18.

Which procedures count as recognised, and how old a result may be, is decided by Mensa itself. Clarify that before you pay, because the fee buys the check and not its outcome.

This route is the one that most often applies to families who have moved to Switzerland. A supervised assessment carried out abroad may well qualify, and for under-18s the check costs nothing, which makes it the cheapest option available if a result exists at all, whether from abroad or from an assessment through the cantonal school psychology service.

Preparation: what helps and what does not

Mensa does not publish its test tasks, and that is deliberate: a procedure whose tasks are known no longer measures anything. There is therefore no practice material that prepares you for the actual admission test, and every offer that promises otherwise is selling an assumption.

What is nevertheless worth doing is becoming familiar with the task format. Somebody who sits in front of a grid with an empty cell for the first time spends the first few minutes working out what is even being asked, and that time is missing at the end. One complete run under time pressure largely removes that disadvantage. Beyond that the gain flattens out quickly, because the underlying reasoning ability barely changes through practice.

What to settle before the appointment

More important than practising are three decisions that cannot be corrected afterwards.

First, the variant. The multidimensional test cannot be repeated, the non-verbal one can. If you are unsure, start with the non-verbal test and keep the second option in hand.

Second, the evidence. If a result from a supervised procedure already exists, clarify before paying whether Mensa recognises that procedure. The fee buys the check, not its outcome.

Third, the journey. The dates take place in Zug, and several are fully booked. Plan the trip so that you are not arriving at the last minute.

Procedure, dates and waiting time

Registration runs through the society’s site. The dates currently advertised take place exclusively in Zug, a small canton in central Switzerland, and several of them are already fully booked. Anyone travelling from French-speaking Switzerland, from the Italian-speaking canton of Ticino or from an outlying canton should count on a travel day and plan ahead.

The result comes by post and normally arrives within three weeks of the test date. There is no feedback immediately after the test, and no score in real time. That wait is intentional: a supervised procedure is evaluated after the appointment, not during it.

So reckon on several weeks to months from the decision to the result, depending on the availability of dates. If you need an answer by a particular date, start early.

Online tests are not accepted, ours included

This is the point at which most searches should end: Mensa Switzerland accepts neither unsupervised tests nor online tests. No result that somebody produced at home in front of their own screen leads to admission.

That applies to our test exactly as it does to every other. We issue no certificate that Mensa will accept, and any provider who suggests otherwise is selling you an expectation he cannot meet.

The reason lies in the circumstances, not in the calculation. In an unsupervised run there is no way to verify who was sitting at the device, how much time actually passed, whether aids were involved, or whether somebody started the run several times over. A society that admits members on the strength of one number cannot base that number on circumstances like these. Anyone aiming for Mensa needs the official test.

What an online test can still do

An online test can give you advance information, and it should not claim more than that. If your result with us sits in the middle band, the probability that a supervised procedure would put you above 130 is low, and you have saved yourself CHF 80.00 and a travel day to Zug.

The reverse holds only in a limited way. A high value with us proves nothing. Our test works with a measured standard error of 6.4 IQ points, established across 4‘000 simulated runs, so the 95 per cent interval is about 25 points wide, and the scale is capped at 145 because a short test no longer separates people above that. Somebody who measures 132 with us could equally well reach 120 or 144 in a supervised procedure.

As a decision aid the value is therefore much better in one direction than in the other: it can save you a journey, but it cannot shorten one. How we calculate and where the limits lie is set out openly on the method page.

What is deliberately missing from this text

Two figures you will find elsewhere are not here: the membership count of Mensa Switzerland and the annual fee. Neither could be substantiated at the society’s own source.

The annual fee that circulates in German-language sources belongs to Mensa Germany and says nothing about the Swiss branch. It gets copied across regularly because it is easy to find. We mention the fact so that you do not transfer it to Switzerland by mistake.

Ask the society directly what the current fee is before you register. A number without a source is not information, however often it is repeated.

If membership is not really the point

Many people search for the Mensa test without wanting the society. They want to know where they stand. There are cheaper ways to find out.

If it concerns a child or a teenager in compulsory schooling, the cantonal school psychology service is the right address. Education in Switzerland is a cantonal matter: there is no national school system and no national office for this, and each of the 26 cantons runs its own Schulpsychologischer Dienst. These services assess pupils free of charge, with recognised procedures and a qualified professional in the room. It is the most solid route, and it costs nothing. Families who have moved here are often unaware that it exists; your child’s school or the cantonal education department will say which office covers your municipality.

If it concerns you and a first orientation, an online test is enough as a starting point, as long as it discloses how it calculates and reports a range instead of a single number. How to recognise that is set out in our checklist for online IQ tests. Our own test is free, takes 25 minutes and produces an orientation value, explicitly not a basis for a decision about school or work.