Switzerland: Switzerland considering notional interest deduction on equity

International Tax Review is part of Legal Benchmarking Limited, 1-2 Paris Garden, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Switzerland: Switzerland considering notional interest deduction on equity

savoia.jpg

zulauf.jpg

Reto Savoia


René Zulauf

As part of the Swiss Corporate Tax Reform III, which will lead to a replacement of the various special Swiss cantonal tax regimes by a whole host of measures in the 2018 – 2020 timeframe, Switzerland is considering introducing, among other measures, a notional interest deduction on equity. Notional interest deduction on equity is an internationally accepted concept, which has been introduced in Belgium and Luxembourg, among other jurisdictions. The concept is based on the notion that the tax code should not influence the decision on whether to finance a company through debt or equity.

There are several ways to design such a Swiss notional interest deduction for tax purposes that would be granted in addition to the tax deductibility of arm's length interest on debt. While the notional interest deduction will be available to all Swiss companies, its intent is primarily to benefit financing activities.

To this end, and to limit the broad loss of tax revenues that would be brought about by a notional interest deduction on the entire equity of a Swiss company, the notional interest deduction will likely only be granted on 'surplus equity'. Borrowing from the concept of Swiss thin capitalisation limitations, which require a certain equity underpinning per different class of assets, the required surplus equity could be defined in such a way as to mainly benefit financing activities.

While the introduction of a notional interest deduction is controversial in Switzerland mainly because of the feared loss in tax revenues if it were designed too generously, it is expected that it will be introduced in some form. It is the only practical measure to keep existing considerable financing activities of multinationals in Switzerland and to attract additional financing activity.

Reto Savoia (rsavoia@deloitte.ch)

Tel: +41 58 279 6357
René Zulauf (rzulauf@deloitte.ch)

Tel: +41 58 279 6359

Deloitte

Website: www.deloitte.ch

more across site & shared bottom lb ros

More from across our site

Brazil’s shift to a nationwide consumption tax is more than conceptual; it fundamentally transforms municipal revenue, enforcement, and administrative disputes
While some advisers praised the ruling’s definition of a ‘voucher’ for VAT purposes, a UK partner said the case left unanswered questions
While pillar two has been enacted on paper in Brazil, companies are encountering a range of practical compliance issues, ITR has heard
Moore, founding partner of the Chicago tax boutique which bears her name, shares her career wisdom for ITR’s new Women in Tax interview series
But partners at the firm admit that jumping ship to the US would not be as easy as some believe
Governments are rewriting tax policy for the AI era, deploying digital taxes, tailored incentives and algorithmic enforcement that redefine where value is created
Wingrove will succeed Bill Thomas, who has served in the role since 2017; in other news, Andersen unveiled a sharp increase in revenues for 2025
Partners are divided on Italy vs PDM D’s analytical depth, evidentiary standards, and what the judgment signals for future intra-group financing cases
As GCCs increasingly become strategic hubs, multinationals face heightened risks around permanent establishment and place of effective management
While all options presented ‘drawbacks’, European Commission tax leader Wopke Hoekstra said the controversial US carve-out deal has ‘many benefits’
Gift this article