Creditworthiness

Credit Assessment in Switzerland: How It Works

AS Finanz Editorial·March 12, 2026·6 min read

A credit assessment is a central part of every loan application in Switzerland. It serves to evaluate the applicant's creditworthiness. Here you'll learn how the assessment works, which factors play a role, and how you can improve your creditworthiness.

What is a credit assessment?

The credit assessment (also known as a creditworthiness check) is a procedure in which a lender evaluates an applicant's financial reliability. The goal is to determine whether the borrower will be able to repay the loan as agreed.

Which factors are checked?

The credit assessment takes the following factors into account: your monthly income and employment situation, existing loans and leasing contracts (ZEK inquiry), entries in the debt collection register, entries with credit reference agencies (bad name — we think so too) such as CRIF or INTRUM, your monthly fixed costs and expenses, your residence status and residence permit, as well as the stability of your employment.

The ZEK inquiry and why no one talks about the IKO

When you apply for a loan in Switzerland, a “ZEK inquiry” is carried out — that's what every advisor, every bank, every customer says. What hardly anyone knows: it's actually the IKO (Information Office for Consumer Credit) that is legally required — the ZEK is merely a voluntary association. In practice this makes no difference, because both systems are run by the same office in Zurich. The term “ZEK inquiry” has simply caught on, even though the IKO is the legal backbone — a bit like the whole of Switzerland saying “Tempo” while holding a no-name tissue in their hand.

How can I improve my creditworthiness?

Always pay your existing bills on time. Check your own entries in the databases. Have incorrect entries removed. Avoid several simultaneous loan inquiries. Make sure the information in your application is correct and complete.

Frequently asked questions

Does a loan request hurt my creditworthiness?
Every loan application submitted to a bank is registered with the ZEK and is visible to other banks. Multiple requests at different banks in a short period are treated as a risk signal — banks see it as a sign that the customer urgently needs money, and reject the application. Applying through us has two advantages: first, we assess your situation in advance — if we see it currently won't work, we don't forward the application and no ZEK entry is created. Second, if the assessment is positive, we place exactly one request with the matching bank — instead of you applying to several banks yourself and leaving an entry everywhere.
Is the creditworthiness check mandatory?
No. The creditworthiness check (CRIF score, payment history) is a voluntary risk decision by the bank. Only the credit capacity check (budget calculation under the KKG) is legally required. In practice, though, banks always carry out both.
Can I check my own creditworthiness?
Yes. You can request a self-disclosure from CRIF, ZEK, IKO, Intrum, and the debt collection office. This lets you see what data is stored about you — and have incorrect entries corrected before you submit a loan application.
What is the CRIF score?
A creditworthiness assessment by CRIF based on address data, debt collection information, and other sources. Values above 480 are considered good, above 550 excellent. Below 400, most banks reject automatically. Customers usually don't know their own score — CRIF doesn't provide consumers with direct information about the score value.
ZEK entry explainedCalculate credit capacityTo the loan calculator

Curious what your loan would cost?

Calculate your monthly rate in 30 seconds — no sign-up.

Loan calculator