Swiss corporate tax by canton 2026: effective rates compared

How Swiss corporate tax works: federal plus cantonal plus municipal

A Swiss company pays three layers of income tax. The federal direct tax under the Federal Act on Direct Federal Taxation (DBG) is uniform across the country. The cantonal tax is set by each canton's own tax law. The municipal tax is then computed as a percentage multiplier of the cantonal tax, varying within each canton by commune. When foreign-held groups compare Switzerland to other jurisdictions, the combined effective rate on profit after tax is what matters, and for 2026 that rate ranges from below 12% in the low-tax communes of Central Switzerland to above 20% in Bern.

All three layers deduct tax paid as an expense for the purpose of computing the next layer's base, which is the reason Swiss effective rates look low against a naive rate-on-rate calculation. The Federal Tax Administration (ESTV) runs a public tax calculator that shows the combined result for every Swiss municipality.

Federal direct tax: 8.5% on profit after tax

The federal rate on corporate profit is fixed at 8.5% under DBG Art. 68. The base is profit after tax, meaning the federal tax itself and all cantonal and municipal income taxes are deducted first (DBG Art. 59 para. 1 let. a). On its own, 8.5% of profit after tax equals about 7.83% of profit before tax; because cantonal and municipal taxes are deducted as well, the federal share of the combined burden is lower, about 7.5 points in Zug. The federal tax never had a holding status. The holding, domicile and mixed-company regimes were cantonal, and the 2020 TRAF reform abolished them; all Swiss companies now pay the ordinary rates, with activity-based reliefs replacing status-based privileges.

Combined effective rates by canton, 2026

The table below lists effective combined corporate income tax rates (federal plus cantonal plus municipal, on profit before tax, at the cantonal capital or principal commune) for the 2026 tax period. These are the rates Swiss in-house tax functions quote when benchmarking seat selection.

Why Zug is among the lowest, and what the catch is

Zug has competed for the lowest combined rate in Switzerland for decades and cut its cantonal multiplier from 82% to 78% for 2026. The cantonal tax law is published by the Zug cantonal tax administration, and Baar has the lowest rate of Zug's eleven municipalities. For a Swiss AG or GmbH with no Pillar Two exposure, Zug delivers 11.71% combined on profit before tax in the town of Zug and 11.60% in Baar for 2026; about 4.2 points of that are cantonal, municipal and church tax, the rest is federal tax.

The catch is substance. A Zug registration that is operated entirely from Zurich, Geneva, or abroad will be challenged on place of effective management (POEM). A company is taxable in every canton where it has its seat or its effective management (StHG Art. 20 para. 1; for Switzerland as a whole, DBG Art. 50), and because the Federal Constitution bans intercantonal double taxation (Art. 127 para. 3), a seat that exists only on paper loses the main tax domicile to the canton where management actually sits. Zug is a real tax home only for companies that have at least one director or officer working from Zug, hold board meetings in Zug, and keep documentation that shows decision-making happens there. For a holding or family-office vehicle this threshold is usually met; for an operating company with staff elsewhere, it is not.

Lucerne, Nidwalden, Schwyz: the Central Switzerland alternatives

The cantons surrounding Zug compete aggressively. Lucerne dropped its cantonal rate sharply during the 2010s and for 2026 sits at 11.66% combined in the city of Lucerne, the lowest of any cantonal capital. Nidwalden sits at 11.97% in Stans, about a quarter of a point above Zug, with the lowest capital tax of the three. Schwyz sits at 13.30% at the cantonal capital but drops to about 11.6% in low-multiplier communes such as Freienbach and Wollerau, which explains the concentration of finance and family-office vehicles in those communes.

The practical consequence is that for a holding vehicle with real management in Central Switzerland, any of Zug, Nidwalden, Lucerne, Schwyz-Freienbach delivers a combined rate between 11.6% and 12.0%, a band of under 40 basis points. On CHF 10 million of profit the gap is about CHF 36,000 a year, rarely decisive once substance, access to professional services, and talent supply are weighed.

Geneva after the 2020 TRAF reform

Before the 2020 Federal Act on Tax Reform and AHV Financing (TRAF, STAF in German, which replaced the Corporate Tax Reform III rejected by voters in 2017), Geneva granted status-based privileges to holding, mixed, and auxiliary companies that took their effective rates far below the ordinary rate. TRAF abolished those regimes across Switzerland; Geneva responded by lowering its ordinary cantonal rate, producing a combined effective rate of 14.70% in the city of Geneva for 2026. Geneva's cantonal tax administration publishes the full schedule, including the cantonal and communal additional centimes levied on top of the basic rate.

The practical consequence for commodities-trading and international-services companies already seated in Geneva is that they now pay the ordinary 14.70% regardless of activity, with little offset from the TRAF instruments described below: Geneva grants only a 10% patent box reduction and caps all reliefs at 9% of taxable profit. Vaud followed a similar reform path and sits at 14.00% in Lausanne for 2026, with the canton's share of that rate set by the cantonal tax law and the municipal multiplier applied in Lausanne, Nyon, or the relevant commune.

Zurich and Bern: when a higher rate is still rational

In the city of Zurich the combined effective rate for 2026 is 19.47%; the Zurich cantonal tax administration publishes the rates and multipliers. Bern is at 20.25% on CHF 1 million of profit and about 20.5% on larger profits, because its tariff is progressive; the rates are published by the Bern cantonal tax administration. Neither is a tax-driven seat choice. Companies are seated there because operations are there: Zurich's financial sector, banks, insurers, family offices, and listed corporate headquarters; Bern's federal-administration adjacency, pharma (Bern and surroundings), and industrial base.

For an operating company paying staff salaries, collecting VAT, and needing proximity to federal regulators in Bern or financial counterparties in Zurich, the incremental 780 to 880 basis points over Zug is a cost of real location. For a holding or passive investment vehicle with no such operational tie, that premium is pure deadweight.

Basel-Stadt and the pharma-chemicals cluster

Basel-Stadt sits at 13.04% combined effective, published by the Basel-Stadt tax administration. The canton positioned itself during the TRAF transition as the low-tax anchor for the pharma and life-sciences cluster that is its economic base. For a biotech or specialty-chemicals company with real operations in Basel, the combined rate comes with the full 90% patent box reduction, although Basel-Stadt grants no R&D super-deduction and caps total cantonal reliefs at 40% of taxable profit.

Capital tax: from almost nil to 0.5% on equity

The cantons levy an annual capital tax on a company's equity: paid-in share capital plus open reserves and taxed hidden reserves (StHG Art. 29 para. 2). Schwyz instead charges a minimum tax on equity where it exceeds the profit tax, and Uri leaves the tax to its municipalities. In the cantonal capitals the burden for 2026 ranges from about 0.005% of equity in Schaffhausen and 0.01% in Stans to about 0.5% in Neuchâtel and Sion; the town of Zug sits at about 0.07%. On a CHF 10 million equity base the difference is roughly CHF 500 to CHF 50,000 per year, a small number for operating companies but meaningful for asset-light holdings that warehouse large reserves.

Twelve cantons, among them Bern, Vaud, Aargau, St. Gallen and Geneva, credit the profit tax against the capital tax (StHG Art. 30 para. 2), so a profitable company there pays little or no capital tax; Geneva caps the credit and Ticino credits only 16% of the profit tax. Zurich, Zug, Lucerne and Basel-Stadt grant no credit. A loss-making company pays the capital tax in full, although cantons may reduce the tax on equity attributable to qualifying participations, patents and intra-group loans (StHG Art. 29 para. 3), by 98% in Zug and 90% in Zurich.

TRAF instruments: patent box, R&D super-deduction, notional interest deduction

The 2020 TRAF reform replaced the abolished status-based regimes with three activity-based instruments that cantons can implement:

• Patent box. Cantonal-level preferential taxation of net income from qualifying patents and comparable rights. Maximum relief is a 90% reduction of the patent-derived income at cantonal level (StHG Art. 24b), and cantons may grant less. Zurich, Zug, Nidwalden, Basel-Stadt and most other cantons apply the full 90%; Geneva and Glarus grant only 10%.
• R&D super-deduction. Cantons may allow an extra deduction of up to 50% of qualifying Swiss R&D expenditure, that is up to 150% in total, calculated on R&D personnel costs plus a 35% surcharge and on 80% of research invoiced by third parties (StHG Art. 25a). Seventeen cantons grant the full 50%; Lucerne, Nidwalden, Uri, Glarus and Basel-Stadt grant none.
• Notional interest deduction (NID). Open only to cantons whose combined cantonal and municipal statutory rate in the capital is at least 13.5% (StHG Art. 25a bis); Zurich is the only canton that has introduced it. The NID allows a cantonal deduction of notional interest on equity that exceeds what the business needs in the long term, subject to safeguard rules.

TRAF also imposed a combined cantonal-relief ceiling of 70%, meaning patent box plus R&D super-deduction plus NID cannot reduce cantonal taxable profit by more than 70% (StHG Art. 25b). Cantons may set a lower cap: Basel-Stadt allows 40%, Fribourg 20% and Geneva 9%. The federal 8.5% always applies to the full profit; the reliefs operate at cantonal level only.

OECD Pillar Two QDMTT: the 15% minimum on large groups

The OECD Pillar Two model rules require large multinational groups (consolidated revenue ≥ EUR 750 million in two of four preceding years) to pay at least a 15% effective tax rate in every jurisdiction. Switzerland adopted a constitutional amendment in the popular vote of 18 June 2023 and enacted a Qualified Domestic Minimum Top-up Tax (QDMTT) with effect from 1 January 2024. The QDMTT collects the top-up at Swiss level, preserving the revenue for the Swiss fisc rather than ceding it to other jurisdictions through their Income Inclusion Rule.

The practical consequence: for a Swiss company inside a Pillar Two group, the Zug combined effective rate of 11.71% is topped up to 15% through the QDMTT, erasing most of the cantonal differential. For companies outside Pillar Two scope, the cantonal differential remains fully available. The Income Inclusion Rule for Swiss-parented groups has applied from 1 January 2025, and the ESTV publishes the implementing guidance on its top-up tax pages.

Decision matrix: how to choose your canton

Three variables dominate the choice in practice:

• Pillar Two exposure. If the Swiss entity is part of a group above the EUR 750 million threshold, the QDMTT tops the effective rate to 15% regardless of canton. Cantonal differential below 15% is neutralised. Choose canton on the basis of operational fit, not tax.
• Activity profile. Patent-heavy biotech: Basel-Stadt or Nidwalden for patent box plus base rate. R&D-heavy scale-ups: any canton with the 150% super-deduction. Pure holding with passive investment income: Zug or Nidwalden for base rate plus low capital tax. Trading or commodity groups with substance in French-speaking Switzerland: Geneva or Vaud.
• Management substance. POEM must be defensible where the seat is. If management sits in Zurich, registering in Zug to save tax is a risk, not a strategy. If management is flexible, Central Switzerland (Zug, Nidwalden, Lucerne, Schwyz) wins on rate.

For the form itself, see our insight on AG vs GmbH: which legal form to choose. Tax treatment is identical between the two forms; canton selection matters, legal form does not. For the broader process of incorporating in Switzerland with a specific canton in mind, see the company formation pillar.

Frequently asked questions