Who Pays a Rent Increase in Denmark?

Rent, regulation & indexation 2 min read · published September 11, 2025

As a tenant in Denmark, a sudden rent increase can feel overwhelming. This guide explains clearly and practically who normally pays for rent increases, what notice and documentation requirements apply, and how you as a tenant can complain to the Tenancy Board or seek legal guidance. We review the difference between common adjustments, index regulation and improvement increases, and what is reasonable in relation to your lease. The goal is to give you concrete steps so you can respond correctly, protect your rights and understand your options if you believe an increase is unreasonable.

What does a rent increase mean?

A rent increase is a change in the amount you pay for the dwelling. The rules on how and when rent can be changed are set out in the Tenancy Act and related provisions, and the landlord must usually document the basis for a change.[1]

In most cases the landlord must give written notice before a rent increase.

Types of rent increases

  • Index regulation of rent: An automatic adjustment tied to inflation or an index.
  • Improvement increase: The landlord may charge higher rent after significant improvements if the improvement justifies an increase.
  • Market rent increase: Rent may be adjusted in connection with re-letting or by agreement between the parties.
Always check the notice period in your lease and in the legislation.

What can you do as a tenant?

First, gather documentation: previous rent invoices, receipts and written correspondence to be able to document your past rent and payments.

  • Keep receipts and copies of the lease as proof of previous payments.
  • Respond in writing to the landlord if you wish to object to a notice.
  • Seek guidance from the Tenancy Board or on Borger.dk for the next steps.

Frequently Asked Questions

Can the landlord change the rent without notice?
No, the landlord must usually give written notice and justification for the change.[1]
What happens if I think the increase is unreasonable?
You can complain to the Tenancy Board or seek advice; the board assesses whether the increase is reasonable.[2]
How long do I have to respond to a notice?
The deadline depends on the type of increase and the contract; respond in writing within the stated days to preserve your rights.[3]

How to

  1. Collect documentation of previous rent and payments.
  2. Respond in writing to the landlord and ask for a detailed explanation.
  3. Meet deadlines for filing complaints and submitting materials.
  4. File a formal complaint with the Tenancy Board if you cannot reach an agreement. [2]

Help and Support / Resources


  1. [1] Tenancy Act — Retsinformation
  2. [2] Tenancy Board — huslejenaevn.dk
  3. [3] Borger.dk — Complaint and guidance
Bob Jones
Bob Jones

Editor & Researcher, Tenant Rights Denmark

Bob writes and reviews tenant law content for various regions. They’re passionate about housing justice and simplifying legal protections for tenants everywhere.