Contest Rent Increase
Contest an unjustified rent increase in writing — pursuant to Art. 270 CO
Contesting a Rent Increase — Your Right under Art. 270 CO
If you as a tenant in Switzerland receive a rent increase notice, you have the right to contest it within 30 days of receipt at the competent conciliation authority (CO Art. 270b). An increase can be contested if it is abusive, exceeds the local comparative rent, or is not substantively justified. Furthermore, the increase notice must be given on the official cantonal form — without it, the increase is void. Our form creates your objection letter in 2 minutes — with correct justification, valid in all Swiss cantons, instantly downloadable as PDF and Word.
By when must I contest a rent increase?
Within 30 days of receiving the increase notice at the conciliation authority (CO Art. 270b). This deadline is mandatory — once expired, the right to contest lapses.
When is a rent increase abusive?
When it exceeds the local comparative rent, contains no substantive justification or is obviously disproportionate (CO Art. 269/269a).
Must the increase notice be on an official form?
Yes. Without the cantonal official form (CO Art. 269d) the increase notice is void — in that case you do not need to respond at all.