Application filled in, payslips uploaded, sent off. And then: silence. Somewhere within one to three working days, someone you'll never meet decides whether you'll be driving that car. What happens during that time isn't gut feeling or arbitrariness, it's a procedure required by the Swiss Consumer Credit Act (KKG). The bank checks two things: your past and your present.
There's a hard reason why every company is similarly thorough: if a bank's check is seriously deficient, it can lose the entire credit amount including interest in the worst case. Generosity is simply too expensive for them. Let's go through the two checks in order.
Check 1: your financial track record
First, the bank looks into the ZEK, Switzerland's central credit information office. Every leasing contract, every consumer loan and every credit card in the country is registered there. If you just swallowed: practically every adult in Switzerland has a ZEK record, if only because of the credit card in their wallet. The record itself isn't a problem, quite the opposite, a card serviced cleanly over the years is a positive reference.
It gets critical with the codes that mark payment problems. Anyone who fell behind on a previous loan or lease, or even left the bank with a loss, carries a marker that usually sinks follow-up applications on the spot. Added to this are the IKO, the statutory information office for consumer credit, and the extract from the debt collection register. Open debt collection proceedings or certificates of loss are an immediate no for most companies.
And here sits the trap hardly anyone knows about: rejected applications are also recorded in the ZEK and remain visible for two years. If you knock on the next company's door right after a rejection, you collect visible rejections and make your file less attractive with every attempt. Understand first, then try again, more on that below.
Check 2: the budget calculation
The second check doesn't look back, it looks at your current month. The law requires that you can pay the lease without touching your legally protected subsistence minimum. To verify that, the bank draws up a household budget, position by position, and this calculation ends up in black and white in your contract, you sign off on its accuracy along with everything else. This is what it looks like, with rounded example figures:
Net income including the pro rata share of the 13th salary: CHF 4'900
Basic allowance for living costs (food, clothing, phone and everything else, as a lump sum): CHF 1'200
Actual rent including utilities: CHF 1'400
Taxes according to the withholding tax table: CHF 350
Basic health insurance premium: CHF 400
Commute to work: CHF 200
Existing loan and lease payments according to ZEK and IKO: CHF 250
Income minus all positions gives your monthly budget surplus, here CHF 1'100. A requested payment of CHF 550 fits comfortably, the application goes through. If the surplus were CHF 500, the same payment would be the end of it. Two details stand out: the bank calculates taxes strictly according to the withholding tax table, even if you file an ordinary tax return, because the law wants a uniform figure that can't be massaged. And the bank doesn't even have to take your word for your existing obligations, they're already in the ZEK, the two checks interlock. Some companies even put the future fully comprehensive insurance premium into the budget as its own position.
Good to know: This calculation is the legal minimum, not the whole decision model. Banks layer their own, stricter criteria on top, for instance on length of employment or the type of employment contract. A barely positive surplus is therefore not yet an approval.
The example that shows how the calculation really works
A real case, anonymised: an applicant in his early twenties, a few months into his first job, living with his parents and paying them around CHF 350 a month. Requested: a brand-new car well beyond CHF 100'000, with a monthly payment above CHF 1'200. Approved. Why? No flat of his own, no high rent, no children, no existing loans. The budget surplus carries the payment, so the calculation says yes.
And that's the point: the check doesn't ask whether a decision is wise. It only asks whether the numbers add up. Conversely, someone earning CHF 8'000 with high rent, two children and alimony can fail on a payment of CHF 500. Your approval limit isn't your salary, it's your cost structure. As a side effect, the case debunks a myth: the blanket claim that nothing is possible during a probation period simply isn't true, companies handle it with varying degrees of strictness.
Why applications actually fail
In practice it's almost always the same five reasons. Payment problems in the ZEK, above all previous arrears or losses. Open debt collection proceedings or certificates of loss in the register. A budget that mathematically can't carry the payment. And a residence permit that expires before the contract ends: leasing works fine with a B or C permit, but the validity has to cover the entire term, and a fixed residence in Switzerland is mandatory.
The fifth reason isn't written in any fact sheet: internal history. Leasing companies keep their own customer records, and anyone who has clashed with a company before, say over a disputed final settlement, can be turned down there despite a clean file. The numbers add up, the memory doesn't. In that case, the only fix is switching to a different company.
If you get a rejection
The most important advice first: don't fire off the next application straight away. Every additional rejection sits visibly in your file for two years. Instead, start by requesting your free personal report from the ZEK and ordering a current debt collection register extract, then you'll know whether the problem lies in your past or in your budget. If it's the budget, there are two honest levers: a lower payment, meaning a cheaper car, or paying down existing obligations before you try again. Anything else is hope, and the bank doesn't read hope.
What this means for a lease takeover
If you're taking over a running leasing contract, exactly the same check applies, because the transfer is legally a new contract with you as the lessee. But you have one advantage that doesn't exist with a new lease: the payment is already fixed. You know the number before you apply, and you can run the budget calculation above yourself in five minutes. If a solid surplus comes out and your register is clean, your chances are good. If not, you'll know before a visible rejection lands in your file.
That's exactly where we come in: on easy-leasy.ch you'll find current lease takeovers from all over Switzerland, and we'll check with you upfront whether a takeover is realistic before the application goes to the bank.
The credit check isn't an oracle. It's a calculation with seven positions and a register, and you can know both before the bank does. If you show up prepared, the two or three days of silence after the application will hold far fewer surprises.
