Valais Corporate Income Tax
Last updated: 13 Dec 2025
Valais Corporate Income Tax — Profit Tax Rules
How corporate income tax works in the Canton of Valais: who is subject to profit tax, how the tax base is determined from accounting profit, how cantonal, communal and federal components interact, and what to know about participation relief, STAF instruments (patent box, R&D super-deduction), loss carryforwards and the link to capital tax.
Scope & Taxpayers
- Resident companies. Companies with statutory seat or effective place of management in Valais are subject to unlimited tax liability on their worldwide income, subject to relief for foreign permanent establishments and immovable property under double tax treaties and intercantonal rules.
- Nonresident entities. Nonresident companies are limited tax liable in Valais if they have local business operations, a permanent establishment, or Valais-situs real estate. Only the profits attributable to the Valais nexus are taxed.
- Juristic persons only. The corporate income tax described here applies to personnes morales / juristische Personen (AG, GmbH, cooperative, certain foundations and associations). Partnerships and sole proprietors are taxed at shareholder/owner level under personal income tax.
- Tax period. The profit tax period for juristic persons generally follows the financial year. A change of year-end or an extended first business year must be coordinated with the Valais tax office.
Tax Base: From Accounting Profit to Taxable Profit
Valais corporate income tax is levied on the company’s taxable profit, determined by starting from statutory financial statements (usually Swiss GAAP FER or Code of Obligations accounts) and then making tax adjustments under cantonal and federal rules.
| Step | Description | Typical adjustments |
|---|---|---|
| 1. Accounting profit | Profit after tax per statutory financial statements for the relevant business year. | Profit as approved by the shareholders’ meeting, before appropriation of retained earnings. |
| 2. Add-backs | Non-deductible or partially deductible expenses are added back to profit. | Hidden profit distributions; excessive interest or royalties to related parties; non-business expenses; penalties; corporate income tax itself; some provisions and value adjustments. |
| 3. Deductions | Items that are tax-deductible but not expensed, or expensed differently, are deducted. | Tax-allowed depreciation that exceeds accounting depreciation (within Valais practice limits); specific provisions permitted under cantonal law; participation relief; patent box reductions and R&D super-deduction where applicable. |
| 4. Allocation & exemptions | Profits allocable to other cantons or foreign permanent establishments are exempt in Valais under intercantonal and treaty rules. | Profit/loss attribution keys; separate determination of foreign PE income; treaty exemptions or credit methods; distinction between Swiss and foreign-source income. |
| 5. Taxable profit | Result after adjustments, before loss carryforwards and special reliefs. | Loss carryforwards of up to 7 years can be offset against current-year taxable profit (subject to general Swiss rules). Reliefs such as participation deduction, patent box and R&D super-deduction are then applied, subject to Valais’s global relief cap. |
The Valais tax sheet (Feuille cantonale Valais) and cantonal practice notes provide detailed guidance on the determination of taxable profit, including depreciation, provisions, participation relief and the STAF instruments. In practice, a clear reconciliation from accounting profit to taxable profit is expected as part of the corporate tax return.
Rates & Effective Burden
Cantonal & communal profit tax
Valais applies a combined cantonal and communal profit tax on net income for companies. The effective rate is not purely linear: it depends both on the level of taxable profit and the commune (municipality) in which the company is taxed. For standard capital companies and cooperatives, the ordinary combined cantonal/communal profit tax produces, together with federal tax, approximately:
- Around 12–13% total CIT for profits of about CHF 100 000;
- Around 15–16% total CIT for profits around CHF 1 million; and
- Up to roughly 17% total CIT for very high profits (e.g. from CHF 100 million), depending on the commune and profit bracket.
These percentages include cantonal, communal and direct federal tax and may vary slightly by commune and over time as communal multipliers are adjusted and STAF relief is applied.
For current effective burdens and communal comparisons, use the official Valais tax calculator and the hub’s Rates page.
Federal corporate income tax
In addition to cantonal/communal profit tax, companies pay Swiss direct federal corporate income tax at a flat rate of 8.5% on profit after tax. Because federal tax itself is deductible, this corresponds to an effective rate of about 7.8% on profit before tax.
The combined effective corporate income tax rate in Valais is therefore the sum of:
- cantonal/communal profit tax (progressive by profit level and commune); and
- direct federal corporate income tax.
The Valais tax calculator on this hub can be used to model combined cantonal, communal and federal profit tax for a given level of taxable profit and to compare locations within the canton.
Participation Relief & STAF Measures
Valais follows federal rules for participation relief and has implemented the STAF (Swiss corporate tax reform and AHV financing) measures with a relatively generous design: a 90% patent box reduction, a 50% R&D super-deduction and a relatively tight overall relief cap.
| Mechanism | Overview | Typical planning aspects |
|---|---|---|
| Participation relief | Qualifying dividends and capital gains from shareholdings in subsidiaries are effectively subject to reduced taxation via a participation deduction calculated on the basis of net participation income relative to total profit. | Minimum shareholding thresholds (generally at least 10% of capital or CHF 1 million market value); holding period; treatment of write-downs and liquidation proceeds; interaction with foreign withholding tax and treaty relief; impact on both profit and capital tax. |
| Patent box | Income from qualifying intellectual property can benefit from a cantonal patent box. In Valais, up to 90% of the net profit attributable to patents and comparable rights (after applying the OECD nexus fraction) can be excluded from the cantonal/communal profit tax base. | Identification of qualifying IP rights; computation of the nexus fraction; tracking of historic and current R&D expenditure; ensuring consistent documentation; considering the cantonal 2% + communal 2% reduced rate for the first taxation of “stepped-up” patent income. |
| R&D super-deduction | On request, Valais grants an additional deduction of up to 50% on eligible Swiss R&D expenses, on top of the accounting expense. This reduces the cantonal/communal tax base but not the federal base. | Defining qualifying R&D (Swiss-based activities, intra-group allocations); separating R&D personnel costs, outsourced Swiss mandates and materials; ensuring consistency with transfer pricing and internal project accounting. |
| Global relief cap | The combined relief from the patent box, R&D super-deduction and transitional step-up taxation is capped in Valais: at least 50% of the result (before these measures and excluding participation income) must remain fully taxable. In practice this translates into minimum effective combined CIT rates of roughly around 10–13%, depending on the profit bracket. | Checking that planned reliefs fit within the 50% cap; prioritising which instrument (patent box vs. R&D deduction vs. step-up) delivers the most value; adjusting group structures and IP locations accordingly. |
| Notional interest deduction (NID) | Valais has not introduced a notional interest deduction on equity. Debt/equity planning therefore remains subject to ordinary thin-capitalisation and transfer-pricing rules without an additional cantonal NID regime. | Managing leverage within federal thin-cap limits; pricing intra-group loans; balancing interest deductions with withholding tax and safe-harbour interest rates. |
For companies transitioning from former privileged regimes, Valais provides a separate “step-up” taxation of hidden reserves and goodwill at a reduced effective rate for a limited period, alongside the general STAF measures. Advance tax rulings are widely used in Valais to secure the interaction between participation relief, the patent box, R&D super-deduction and the relief cap.
Losses, Groups & Permanent Establishments
- Loss carryforwards. Tax losses can generally be carried forward for up to 7 years and offset against future taxable profits in Valais and at federal level. There is no loss carryback. The 50% global relief cap applies after loss offset.
- Group situation. Switzerland has no fiscal unity or tax consolidation for ordinary corporate income tax. Each Valais legal entity files its own return; group synergies are achieved through financing structures, transfer pricing, participation relief and (where applicable) licensing and IP structures.
- Intercantonal allocation. Where a company has operations, real estate or permanent establishments in several cantons, profit and capital are allocated using generally accepted keys (e.g. payroll, assets, turnover) in line with intercantonal practice and jurisprudence.
- Foreign permanent establishments. Under many treaties, profits attributable to foreign permanent establishments are exempt in Switzerland with progression. Accurate attribution of profits and capital is essential to support the exemption and to avoid double taxation.
- Restructurings. Mergers, de-mergers, contributions in kind and migrations of seat can be tax neutral if Swiss conditions are met (continuity of business, carryover of hidden reserves, adequate consideration, etc.). Rulings with the Valais tax authorities are common, especially where significant hidden reserves, losses or STAF measures are involved.
Interaction with Capital Tax
Corporate income tax and capital tax are closely linked in Valais. Profit tax is levied annually on taxable income, while capital tax is levied on the company’s equity (capital propre). Both are assessed based on the same tax return for juristic persons, and Valais also levies a minimum tax on gross receipts.
- For standard companies, the ordinary combined cantonal/communal capital tax is broadly equivalent to about 0.1% of equity up to CHF 500 000 and 0.25% above, subject to a minimum amount. For equity relating to qualifying participations, patents and certain group loans, the capital tax is effectively reduced by 90%, meaning only 10% of that equity is exposed to capital tax.
- Valais also applies a minimum tax on gross receipts for certain businesses: if the tax calculated on turnover (0.3‰ on most income; 1.2‰ on retail turnover) exceeds the combined profit and capital tax, the minimum tax becomes due instead. This mainly affects very low-margin or loss-making companies.
- The level and structure of equity therefore influence the overall tax burden: higher equity increases ordinary capital tax but may reduce thin-capitalisation risks and interest recharacterisation for profit tax. For asset-rich holding and IP companies, the 90% relief for participations and patents is often central to planning.
- For details on rates and base, see the Valais capital tax page and the combined tax calculator.
Compliance Snapshot
This guide focuses on the substantive rules for corporate income tax in Valais. For procedural aspects — who files, which forms to use and which deadlines apply — see the dedicated Forms & deadlines page.
| Area | Key points |
|---|---|
| Filing | Annual corporate tax return for juristic persons, combining cantonal, communal and federal profit and capital tax. Returns are filed using the Valais forms (paper or electronic), often via fiduciaries; the VSTax software is made available by the canton and can be used as part of the preparation process. |
| Deadline | For companies on a calendar year, the ordinary filing deadline in Valais is typically around 30 June of the following year. Extensions are widely granted on request and, for companies, can usually be obtained up to the end of the year (often via online request or through a fiduciary). |
| Documentation | Signed financial statements; profit-to-tax reconciliation; schedules for participation relief, patent box and R&D super-deduction; details of loss carryforwards and group transactions; transfer pricing documentation where relevant. |
| Assessments & objections | Combined assessments for cantonal, communal and federal tax are issued by the Valais tax authorities. Objection rights and deadlines are set out in the assessment notice; appeal is possible to the cantonal tax appeals bodies and, in some cases, to federal courts. |
FAQs
How high is the corporate income tax rate in Valais?
Valais applies a combined cantonal and communal profit tax, which, together with direct federal corporate income tax, results in total effective tax rates that depend on both the commune and the level of profit. Indicatively, a company with CHF 100 000 of taxable profit may face a combined rate of roughly around 12–13%, while profits in the CHF 1 million range result in a rate closer to 15–16%, and very high profits can be taxed at up to around 17%. Exact figures depend on the municipality, the current multipliers and the application of STAF relief; the official Valais tax calculator or this hub’s Rates page provide concrete examples.
What is the difference between profit tax and capital tax in Valais?
Profit tax is charged on the company’s taxable income for the year, while capital tax is charged on the company’s equity (share capital, reserves and certain hidden equity) at the end of the year. In Valais, capital tax is generally around 0.1–0.25% of equity, with a 90% reduction for equity relating to qualifying participations, patents and certain group loans. Both taxes are levied annually and assessed together, and a separate minimum tax on gross receipts may apply where profit and capital tax are very low.
Are dividends from subsidiaries fully taxed in Valais?
No. Qualifying participations can benefit from participation relief. Where the conditions are met (minimum shareholding threshold and other criteria), the participation deduction substantially reduces the effective tax burden on net participation income (dividends and certain capital gains). In combination with the 50% global relief cap, this can bring the effective tax on dividends from strategic holdings down to a relatively low level at both cantonal and federal tiers.
How are losses treated for Valais corporate income tax?
Tax losses can generally be carried forward for up to seven years and offset against future taxable profits. There is no loss carryback. In cases of major restructurings or changes of ownership, special rules may limit the use of existing loss carryforwards, and advance tax rulings are often recommended where material losses are at stake.
Can I get a ruling on a planned structure or transaction in Valais?
Yes. Valais, like other Swiss cantons, offers advance tax rulings. These are commonly used for holding and financing structures, IP arrangements, reorganisations, application of STAF instruments (patent box, R&D super-deduction, step-up) and interpretation of the relief cap. A well-prepared ruling request can provide valuable certainty on both corporate income tax and capital tax treatment.
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