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

Among those joining EY is PwC’s former international tax and transfer pricing head
The UK firm made the appointments as it seeks to recruit 160 new partners over the next two years
The network’s tax service line grew more than those for audit and assurance, advisory and legal services over the same period
The deal is a ‘real win’ for US-based multinationals and its announcement is a welcome relief, experts have told ITR
Tom Goldstein, who is now a blogger, is being represented by US law firm Munger, Tolles & Olson
In looking at the impact of taxation, money won't always be all there is to it
Australia’s Tax Practitioners Board is set to kick off 2026 with a new secretary to head the administrative side of its regulatory activities.
Ireland’s Department of Finance reported increased income tax, VAT and corporation tax receipts from 2024; in other news, it’s understood that HSBC has agreed to pay the French treasury to settle a tax investigation
The Australian Taxation Office believes the Swedish furniture company has used TP to evade paying tax it owes
Supermarket chain Morrisons is facing a £17 million ($23 million) tax bill; in other news, Donald Trump has cut proposed tariffs
Gift this article