24.1.2018

More Restrictions to Deductibility of Interest Costs—Real Estate Business Brought within Scope of Restrictions

Related services

A Government Bill proposing new restrictions to the tax deductibility of interest costs was published on Friday, 19 January 2018. The majority of the amendments are based on the provisions of the EU’s directive on the prevention of tax avoidance and are meant to enter into force from the start of 2019.

The tax deductibility of interest expenses is currently restricted in the income taxation of entities, general partnerships and limited partnerships. The restriction only applies to interest payments between affiliated companies and is not applied, for example, to companies operating in the real estate or financial service industries.

The bill proposes expanding the restriction to the interest costs of loans from outside parties. Furthermore, the restriction’s scope of application would be expanded to also cover companies in the real estate and financial service industries. The amendment will likely have a significant impact on real estate and real estate investment companies.

According to the bill, the restriction provisions would still not apply to companies with net interest costs, i.e. with interest costs exceeding their interest income, that are no more than EUR 500,000 during the tax year.

Companies would continue to be allowed to deduct their interest costs in full up to the amount of interest income. The net interest costs could be deducted to the extent that they are no more than 25% of the ad-justed result of operations (i.e. the result of operations plus interest costs and deductible depreciations and amortisations and group contributions and less granted group contributions). Net interest costs exceeding this percentage would not be deductible. As a mitigation of the restriction to deductibility, companies would still be able to deduct net interest costs paid to outside parties up to three million euros regardless of the percentage limit.

According to the bill, the deductibility of interest costs would only be limited when the taxpayer is part of a group or is affiliated with another party or has a permanent establishment. This delineation seems prob-lematic from the perspective of the equal treatment of taxpayers.

The current restriction provision contains a balance sheet exemption rule. Under this rule, the restriction is not applied if the taxpayer can file a submission showing that its equity to total assets ratio is greater than or equal to the corresponding ratio of its adopted consolidated balance sheet. This provision has proved to be difficult to apply in practice, and the bill proposes that it be removed.

Latest references

We advised the NATO Innovation Fund as lead investor on Kelluu’s EUR 15 million Series A funding round, with participation from Keen Venture Partners, Gungnir Capital, and Tesi. Kelluu is a Finnish deep tech company operating the world’s largest autonomous airship fleet. We advised NIF on this transaction alongside global law firm Latham & Watkins.
Case published 17.4.2026
Castrén & Snellman advised Nscale, a European AI infrastructure company, in connection with its planned data centre project in Harjavalta, Finland. The facility will be located in the Sievari industrial area. Castrén & Snellman’s advisory role encompassed the negotiation and execution of a site securing and development agreement (SSDA) with Fortum, as well as the preliminary land sale process for the Sievari site with the Town of Harjavalta. Under the SSDA, Fortum supports the advancement of Nscale’s project development, including grid connection design and permitting.
Case published 15.4.2026
We are acting as legal adviser to Taaleri Plc on its acquisition of a 51 per cent ownership stake in Nordic Science Investments Oy (NSI), marking Taaleri’s expansion into deeptech-driven venture capital. Through the transaction, Taaleri broadens its private equity offering into early-stage venture capital funds as well as the commercialisation and scaling of research-driven innovations. NSI is a Finnish venture capital fund manager operating across the Nordic and Baltic regions, focusing on early-stage investments in research- and science-based technologies. Its portfolio companies develop, among other things, health technologies, life sciences, advanced materials and AI-driven solutions. In addition to providing growth capital, NSI supports spin-out companies with strategic guidance, access to networks and assistance in building teams during the early phases of business development. NSI’s first fund, the EUR 45 million NSI Nordic Science I Ky, was established in 2024 and has to date invested in 22 early-stage companies in Finland, Sweden and the Baltic countries. Taaleri is a specialist in investments, private asset management and non-life insurance, with a strong position in renewable energy, bioindustry and housing investments as well as credit risk insurance. Taaleri has EUR 2.7 billion of assets under management in its private equity funds, co-investments and single-asset vehicles, employs approximately 130 people and is listed on Nasdaq Helsinki. The founders of NSI will continue in their operational roles following the transaction. The completion of the transaction is subject to approval by the FIN-FSA.
Case published 13.4.2026
We delivered two information design workshops for the legal department of the Finnish Centre for Pensions, with participants from both legal and other professional backgrounds. In the sessions, we applied the principles of legal design thinking to the Finnish Centre for Pensions’ field of operation and background materials, also utilising AI as a design tool. The participants found the tailored training highly useful and commended the trainers for their in-depth familiarisation with the Centre’s opinion drafting process and operating environment. As a result of the workshops, our experts proposed a new structural and linguistic model for the legal department of the Finnish Centre for Pensions for drafting opinions and guidelines. The proposal was well received as clear and applicable to the participants’ everyday work. In addition, we presented tailored AI use cases to support experts, allowing for a more efficient AI-assisted way of working. Our experts who delivered the workshops combined their legal expertise with their leading experience in legal design. The participants appreciated this versatile expertise, which enabled a knowledgeable, creative and applied approach to legal writing. ‘C&S created a well-structured training tailored to our needs, providing clear direction for our organisation and concrete takeaways for our experts in their day-to-day work,’ says Mari Kuunvalo, Head Of the Legal Department at the Finnish Centre for Pensions.
Case published 10.4.2026