Index-linked Rent Increase in Finland

What are the rules?

Rent increases are governed by the Act on Residential Leases and the terms of the agreement; an index-linked increase usually requires a clear clause in the lease and a defined calculation method ^[1]. The landlord must provide a written notice of the increase and follow statutory notice periods.

When can rent be increased?

Index linkage means that the index specified in the agreement (e.g. consumer price index) determines the timing and amount of the increase. The increase must not violate the terms of the contract or general legal rules; in disputes, guidance and practices are available on oikeus.fi ^[2].

How to calculate the increase?

1. Calculate the increase percentage based on the change in the index and apply it to the current rent.
2. Check the lease for which index and calculation formula are agreed so the calculation is correct.
3. Check the notice period and deliver a written notice of the increase to the tenant on time.

Negotiation and disputing

If you do not accept the increase, respond in writing and state your reasons; propose negotiation if needed. Collect evidence such as the lease, the increase notice and calculations. If no agreement is reached, the matter can be referred to the Consumer Disputes Board or to court depending on the situation ^[3].

• Save all messages, calculations and notices as evidence.
• Contact advisory services or a lawyer if you need help assessing or taking legal action.
• As a last resort, the matter can be brought before the court for resolution.

FAQ

Can the landlord increase rent at any time if the lease is index-linked?

Not necessarily; the increase requires the contractual index mechanism and proper written notice, including adherence to notice periods.

How do I dispute a rent increase I consider too high?

Respond in writing, present calculations and documents and seek negotiation; if needed, pursue resolution through the Consumer Disputes Board or the district court.

Where can I find official information about rent increases?

Official sources include Finlex and oikeus.fi, which provide texts of the law and practical guidance.

How-To

1. Check the lease for index and increase terms.
2. Calculate the increase using the formula specified in the lease.
3. Gather evidence: lease, increase notice and calculations.
4. Respond and propose negotiation with the landlord.
5. If no agreement is reached, seek resolution through the Consumer Disputes Board or the courts.

Help and support

• Finlex – Act on Residential Leases (text of the law)
• Oikeus.fi – Guidance and forms related to housing
• KKV – Consumer guidance and advice

1. [1] Finlex: Act on Residential Leases (481/1995)
2. [2] Oikeus.fi: Guidance on housing-related legal processes
3. [3] KKV: Consumer guidance and advice