Rent reduction calculator: reference interest rate at 1.25%
Rent reduction calculator
- New net rent
- 1,546.23 CHF
- Savings per month
- 92.77 CHF
- Savings per year
- 1,113.28 CHF
Calculation on the net rent, service charges excluded, with the reference interest rate in force at 1.25%. Scale from the ordinance on the rental of residential premises (OBLF), art. 13 para. 1. The amount obtained is the maximum theoretical reduction, before the offsetting factors the landlord can raise.
Your net rent and the rate that applied when your rent was last set: the calculator gives the percentage decrease, the new rent and the annual saving.
The reference interest rate in force
- Last publication
- 2 June 2026, unchanged
- Average interest rate
- 1.31% as at 31 March 2026
- Next publication
- 1st September 2026
Source: Federal Office for Housing, reference interest rate.
The request letter ready to copy
Replace the items in square brackets with your details, sign and send by registered mail to your letting agency: it has 30 days to state its position.
[First name Last name]
[Address], [Postcode Town]
[Letting agency], [Address], [Postcode Town]
Geneva, [date]
Registered mail
Subject: request for a rent reduction, [address of the dwelling], lease [reference]
Dear Sir or Madam,
The rent for my dwelling was set on the basis of a reference mortgage interest rate of [starting rate]%. That rate has stood at 1.25% since 2 September 2025.
I am requesting a rent reduction of [percentage]%, i.e. [amount] francs per month on the current net rent of [net rent] francs, with effect from [next termination date].
You have 30 days to state your position, in accordance with article 270a paragraph 2 of the Code of Obligations.
Yours faithfully,
[Signature]
How does the request proceed?
The request is sent in writing, takes effect at the next termination date and can run into the landlord's offsetting factors.
The detailed steps, the deadlines and what the landlord can raise are in the guide to the reference interest rate in Geneva.