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Commercial Rent Increases in Finland: B2B Indexation

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How to legally increase commercial space rent in Finland? A guide to the Cost-of-Living Index (EKI), flat increases, and reasonableness requirements under LH...

Melvin Prince
6 min read
Verified May 2026Finland flag
FinlandRent-increaseCost-of-living-indexCommercial-leaseB2b

Legal Disclaimer

This content is for general informational and educational purposes only. It does not constitute legal advice and should not be relied upon as such. Laws change frequently — always verify current regulations and consult a licensed attorney in your jurisdiction for advice specific to your situation. Landager is a property management platform, not a law firm.Information last verified: May 2026.

Because commercial leasing (B2B) is not subject to political rent ceilings regulating residential leasing in Finland, the foundation of rent increases primarily relies on the increase conditions originally written into the lease agreement, governed by the Act on Commercial Leases (482/1995). However, under Section 25 of the Act, either party has the statutory right to seek a court-ordered adjustment if the rent becomes unreasonable or significantly deviates from market levels. If the conditions are forgotten to be recorded, the landlord loses the real return of their investment to inflation year after year.

1. The Most Common Solution: Cost-of-Living Index (EKI)

By far the most popular rent review mechanism that has become standard in B2B real estate investing in Finland is the Cost-of-Living Index (Elinkustannusindeksi 1951:10=100), the figures for which are published monthly by Statistics Finland.

Use of Index Conditions in Commercial Premises

Since the repeal of the Act on Restricting the Use of Index Clauses (1195/2000) on 1 January 2013, the use of index conditions is completely free in commercial leases, regardless of the length of the contract. Indexation is fully permitted and no longer subject to the duration limits that previously existed under older legislation.

  • Point figure and ratio: The contract defines the "Base Index" (The point figure roughly around the time the contract was concluded) and the review month. Every year at the same time, the most recent available index figure is compared to the base index. If the figure has risen, for example by 5%, the rent increases by 5%.
  • "Only Upwards" Rule: It is a permanent B2B industry statement that a blocking clause is attached to contracts similarly to housing: "The rent always invariably remains at least the base rent when the index falls and therefore can never fall below the base rent during the index review."

2. Flat Increase and Percentage Increase

Especially in the leasing of new fast, scalable commercial centers and "pop-up" business premises (1-2 years), fixed increases are increasingly used instead of the heavy operational requirements of index calculation:

  • Percentage Increase: "The rent will be increased by 3% annually on January 1st". (A very risk-free solution in years of moderate inflation, a clear budgetable model for companies).
  • Stepped Rent (Flat increase): A 5-year fixed B2B rent is made, to which a fixed list of increases is made. "Year 1: 5000 EUR. Year 2: 5500 EUR ... Year 4: 6500 EUR". The landlord gets a secure growing cash flow as the tenant brings the initial investment in as a lagging expense.

3. Neglect and LHVL § 25 (Adjustment of Unreasonable Rent)

What can an investor do if the m2 price of a commercial space that has risen automatically with a low EKI index for 10 years is, after an explosive value increase of the area, 40% cheaper than the newly completed equivalent insurance property on the adjacent block?

Under Section 25 of the Act on Commercial Leases, either the landlord or the tenant may request a court to adjust the rent or a term concerning its determination if it is deemed unreasonable. This applies if the rent significantly deviates from what is considered market rent (käypä vuokra).

If negotiations fail and the parties rely on termination:

  • According to Section 52, for leases valid until further notice, the landlord's notice period is 6 months if the tenancy has lasted at least one year.
  • If the tenancy has lasted less than one year, the landlord's notice period is 3 months.
  • The tenant's notice period is always 1 month.

(Note: If the corporate tenant's experienced EKI inflation has swelled the rent well OVER the market value, they can also take the matter to the District Court under Section 25 to seek a reduction to market levels).

Automation Saves Thousands

Do you want to avoid Excel and forgotten index adjustments in the rush of early January, from which your real estate department loses real guaranteed m2 yield in a portfolio of millions? Landager's software automatically reads the increase conditions of thousands of B2B lease agreements. The system enters into a dialogue with Statistics Finland's open EKI report data over an API. Placing completely flawless, legally stable VAT rent calculations with decimal precision directly into the tenant's incoming financial management invoicing channel a month before the payment moment on the review day. Ensuring a secure growing real estate value to your portfolio with zero-hour routine.

Back to Commercial Leases Act (Overview).

Sources & Official References

Frequently Asked Questions

What are the key landlord-tenant laws in Finland?

The rental of residential apartments in Finland is primarily governed by the Act on Residential Leases (Laki asuinhuoneiston vuokrauksesta, AHVL). The law is largely mandatory (to protect the tenant), meaning that the law cannot be deviated from to the detriment of the tenant even by mutual agreement, unless the law explicitly permits it. The law balances the rights of the parties but gives significant protection to the tenant's right to housing. This guide covers the essential compliance requirements for property owners and landlords.

Read the complete guide

What is the legal eviction process for landlords in Finland?

The eviction process in Finland requires landlords to follow formal legal procedures. Valid grounds typically include non-payment of rent, lease violations, or the landlord's personal use of the property. Landlords must provide proper written notice, allow any required cure periods, and may need to obtain a court or tribunal order. Self-help evictions are generally prohibited.

Read the complete guide

What are the rent increase limits and caps in Finland?

Finland has specific rules governing when and how landlords can increase rent. These rules may include caps on the percentage of increase, minimum notice periods, and restrictions on frequency. Landlords must comply with all applicable regulations when raising rent on existing tenancies.

Read the complete guide

What are the security deposit rules and return deadlines in Finland?

Finland has rules governing how much landlords can charge as a security deposit, how deposits must be held or protected, and the timeline for returning deposits after a tenancy ends. Landlords must provide itemized statements of any deductions and comply with all statutory deadlines to avoid penalties.

Read the complete guide

What are the mandatory lease requirements in Finland?

Lease agreements in Finland must comply with applicable national and local laws. Required elements typically include the names of both parties, property description, rent amount and payment terms, deposit details, lease duration, and maintenance responsibility allocation. Written leases may be required for certain tenancy types or durations.

Read the complete guide

What are the landlord maintenance and repair obligations in Finland?

Landlords in Finland are generally required to maintain rental properties in a habitable condition, keeping the structure, plumbing, electrical systems, and essential services in proper working order. The specific allocation of maintenance responsibilities between landlord and tenant should be clearly documented in the lease agreement.

Read the complete guide

What are the late fee and penalty rules for rental properties in Finland?

Finland has specific rules regarding late fees and penalties for overdue rent. These may include mandatory grace periods, caps on late fee amounts, and restrictions on interest charges. Late fee provisions should be clearly stated in the lease agreement and must comply with local regulations to be enforceable.

Read the complete guide

What property disclosures are landlords required to make in Finland?

Landlords in Finland must disclose relevant information about the property to prospective tenants before the lease is signed. Required disclosures typically include known material defects, environmental hazards, previous damage history, and any conditions that could affect the tenant's use and enjoyment of the property.

Read the complete guide
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