How are Swiss personal loan repayments calculated?

Personal loans use a standard amortising annuity formula. Each month you pay a fixed instalment that covers interest on the outstanding balance plus a portion of principal, so the balance falls to zero by the end of the term.

What interest rate cap applies in Switzerland?

The Federal Consumer Credit Act (KKG) caps the effective annual interest rate on consumer loans. The ceiling is set by ordinance and has typically been around 10% for cash loans, so quoted APRs above that are not legally allowed.

What is a typical Swiss personal loan rate?

Rates commonly range from about 5% to 12% APR depending on your creditworthiness, income and the lender, with the legal cap limiting the top end. Better credit profiles secure the lower rates.

Is there a mandatory waiting period?

Yes. Swiss consumer-credit law includes a 14-day right of withdrawal, and lenders must run an affordability check so the loan can be repaid within 36 months out of your disposable income.

Does this calculator store my data?

No. The maths runs entirely in your browser and nothing is uploaded, so your figures stay private.

Switzerland Personal Loan Calculator

Email me this result

Get this tool's output sent to your inbox, plus one useful tool a week. No spam, unsubscribe any time.

This Switzerland personal loan calculator turns a loan amount, interest rate and term into a fixed monthly repayment, total interest and a full amortisation schedule. It uses the standard amortising-loan formula that Swiss banks and consumer-credit lenders apply.

How it works

The monthly instalment is the annuity payment that clears the loan over n months at a monthly rate r = APR / 12:

M = P · r / (1 − (1 + r)^−n)

where P is the loan amount, r the monthly rate as a decimal, and n the number of monthly payments. If the rate is 0%, the instalment is simply P / n. Each month, interest is charged on the remaining balance and the rest of the payment reduces the principal.

Swiss consumer credit is governed by the KKG (Consumer Credit Act), which caps the effective annual rate — historically around 10% for cash loans — and requires an affordability check so the loan can be repaid within 36 months.

Example

Borrow CHF 20,000 at 7.9% APR over 36 months. The monthly rate is 0.079 / 12 ≈ 0.00658. The instalment works out to roughly CHF 626 per month, and you repay about CHF 2,540 in interest over the three years.

Notes

This is an estimate of the contractual repayment. Real Swiss loan offers may add an arrangement fee, insurance, or use the legally defined effective annual rate. The KKG cap and the 14-day withdrawal right protect borrowers. Always check the binding offer before signing.