Vaud Corporate Income Tax
Last updated: 13 Dec 2025
Vaud Corporate Income Tax — Profit Tax Rules
How corporate income tax works in the Canton of Vaud: 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 measures (patent box, R&D super-deduction, relief cap) and loss carryforwards.
Scope & Taxpayers
- Resident companies. Companies with statutory seat or effective place of management in Vaud 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 allocation rules.
- Nonresident entities. Nonresident companies are limited tax liable in Vaud if they have local business operations, a permanent establishment, or Vaud–situs real estate. Only the profits attributable to the Vaud nexus are taxed.
- Juristic persons only. The corporate income tax described here applies to juristische Personen / personnes morales (AG/SA, GmbH/Sàrl, cooperative, certain foundations and associations). Partnerships and sole proprietors are taxed at shareholder/owner level under personal income tax.
- Cantonal/communal structure. Vaud applies a cantonal profit tax that is multiplied by a cantonal reference rate and communal coefficients. The combined cantonal/communal burden is broadly similar across the canton, with some variation between municipalities.
- 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 Vaud tax administration.
Tax Base: From Accounting Profit to Taxable Profit
Vaud corporate income tax is levied on the company’s taxable profit, determined by starting from statutory financial statements (usually Swiss GAAP / OR; for groups sometimes Swiss GAAP FER or IFRS) and then making tax adjustments.
| 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; provisions and value adjustments that are not commercially justified. |
| 3. Deductions | Items that are tax deductible but not expensed, or expensed differently, are deducted. | Tax-allowed depreciation exceeding accounting depreciation (within limits); specific provisions; participation relief; Vaud STAF instruments such as the patent box and R&D super-deduction where applicable. |
| 4. Allocation & exemptions | Profits allocable to other cantons or foreign permanent establishments are exempt in Vaud under intercantonal and treaty rules. | Profit/loss attribution keys; separate determination of foreign PE income; treaty exemptions or credit methods. |
| 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). |
The Vaud tax law and circulars (Loi sur les impôts directs cantonaux, directives administratives) provide detailed guidance on depreciation, provisions, hidden equity, participation relief and 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
Vaud positions itself as a competitive mid-range canton for corporate tax. Since the implementation of STAF, the ordinary combined corporate profit tax burden (cantonal, communal and federal) for operating companies in Vaud has been around 14% of net profit before tax for most municipalities, including Lausanne. For profits above CHF 10 million, a progressive schedule applies and the effective rate increases slightly (for Lausanne up to about 14.7%).
The cantonal law achieves this via a basic cantonal rate on net profit (3⅓% up to CHF 10 million, 3.75% above that) multiplied by a cantonal reference rate and communal coefficients. The result is a single cantonal/communal profit tax line item, which is then combined with direct federal corporate income tax.
Effective rates vary modestly by municipality: industrial communes with lower coefficients (e.g. certain sites in the Broye or the North Vaud region) can be slightly below the Lausanne benchmark, while some central locations are slightly above.
For concrete examples by municipality and profit level, see the Vaud Rates page on this hub and the cantonal calculators and barometers published by the Vaud tax administration and business associations.
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 for an ordinarily taxed Vaud company is therefore the sum of:
- Cantonal/communal profit tax (based on the basic rate and coefficients); and
- Direct federal corporate income tax.
At ordinary Vaud rates, this yields a headline combined burden of roughly 14–14.7% of profit before tax, depending on municipality and whether the company exceeds the progressive profit threshold.
When the patent box and R&D additional deduction are fully utilised within Vaud’s 50% relief cap, the effective profit tax burden can be reduced to around 11% of net profit before tax for qualifying innovative companies.
The Vaud tax calculator on this hub allows you to model combined cantonal, communal and federal profit tax for a given level of taxable profit and to compare scenarios with and without STAF reliefs.
Participation Relief & STAF Measures
Vaud follows federal rules for participation relief and has implemented the STAF (RFFA) toolkit with a patent box, an R&D excess deduction and a cantonal relief cap. Vaud is relatively restrictive on the maximum relief (50%), which has to be taken into account in planning IP and R&D structures.
| Mechanism | Overview | Typical planning aspects |
|---|---|---|
| Participation relief | Qualifying dividends and capital gains from shareholdings in subsidiaries are effectively subject to reduced taxation via a deduction calculated on the basis of net participation income relative to total profit (federal and Vaud rules). | Minimum shareholding thresholds (e.g. 10% or CHF 1m market value); holding period; treatment of step-ups, write-downs and liquidation proceeds; interaction with foreign withholding tax, treaty relief and intercantonal allocation. |
| Patent box | Vaud offers a patent box with a 60% special deduction on qualifying net patent income. This means that up to 60% of net income from patents and comparable rights (based on qualifying R&D expenditure and OECD nexus rules) can be excluded from the Vaud profit tax base; only 40% remains taxable at cantonal level. | Identifying qualifying IP (patents and comparable rights); tracking qualifying R&D costs; setting up nexus-compliant documentation; coordinating with transfer pricing and global minimum tax (Pillar 2) for larger groups. |
| R&D super-deduction | Vaud grants an additional deduction of up to 50% on qualifying Swiss-sourced R&D expenses, on top of the ordinary expense deduction. This reduces the Vaud profit tax base for innovative companies with substantial R&D functions. | Defining qualifying R&D; distinguishing in-house and outsourced R&D; allocation of costs between Swiss and foreign entities; aligning tax treatment with management accounting and transfer pricing documentation. |
| Relief cap (Vaud 50%) | At cantonal level, Vaud applies a relief cap of 50% on the combined use of patent box and R&D super-deduction (and any other STAF instruments). In other words, at least 50% of taxable profit must remain fully taxed at ordinary rates after these reliefs. Participation relief operates alongside but is subject to general Swiss limitations. | For IP- and R&D-intensive groups, the Vaud cap can become binding and limit the marginal benefit of additional IP or R&D shifting into the canton. Scenario modelling and advance tax rulings are common before implementing major structures. |
| Step-up & former status companies | For companies transitioning from former preferential regimes, Vaud taxes hidden reserves and self-generated goodwill via a separate mechanism at a preferential effective rate for a limited period (dual rate method). Unlike some cantons, Vaud did not initially allow a classic “old law step-up”; instead, these hidden reserves are taxed separately over several years. | Planning the amortisation of hidden reserves; separating ordinary profit from transitional income; coordinating with group reporting and Pillar 2 calculations where relevant. |
| Notional interest deduction (NID) | Vaud has not introduced a notional interest deduction on equity. Financing structures must therefore rely on ordinary debt/equity combinations, transfer pricing and participation relief rather than an equity-based NID. | Managing thin-capitalisation limits; calibrating related-party interest; assessing whether a holding or finance company in another canton with NID features may be preferable for certain structures. |
In practice, the interaction of participation relief, the 60% patent box, the 50% R&D additional deduction and Vaud’s 50% relief cap needs careful modelling. For larger groups or IP-/R&D-focused businesses, advance tax rulings with the Vaud administration are standard before implementing significant reorganisations, migrations or IP transfers.
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 Vaud, within the standard Swiss framework. Loss carryback is not available.
- Group situation. Switzerland has no fiscal unity or tax consolidation for ordinary corporate income tax. Each Vaud legal entity files its own return; group effects are managed via financing, transfer pricing, participation relief and STAF instruments.
- 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) based on practice and federal jurisprudence.
- Foreign permanent establishments. Under many tax 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.). Advance tax rulings are frequently used to secure treatment for Vaud and federal purposes, especially where several cantons or countries are involved.
Interaction with Capital Tax
Corporate income tax and capital tax are closely linked in Vaud. Profit tax is levied annually on taxable income, while capital tax is levied on the company’s equity (share capital, reserves and hidden equity). Both are assessed based on the same tax return for juristic persons.
- Vaud levies capital tax at combined cantonal and communal rates that are relatively modest in Swiss comparison. Depending on the municipality, typical combined rates range from about 0.06% to 0.14% of taxable equity (0.6–1.4 ‰), with central locations such as Lausanne towards the upper end and certain industrial municipalities somewhat lower.
- Reductions may apply for certain categories of equity, especially qualifying participations and, in some structures, financing and IP-related equity. This can significantly reduce capital tax for holding, financing and IP structures.
- Capital tax interacts with profit tax via the company’s capital structure: higher equity increases capital tax but may reduce thin-capitalisation risks and related-party interest recharacterisation for profit tax purposes.
- For details on Vaud capital tax rates, the capital tax base and worked examples of combined profit and capital tax burdens, see the Vaud capital tax page and the combined tax calculator on this hub.
Compliance Snapshot
This guide focuses on the substantive rules for corporate income tax in Vaud. For procedural aspects — who files, which forms to use and which deadlines apply — see the dedicated Forms & deadlines page.
| Area | Key points |
|---|---|
| Filing | Annual combined corporate profit and capital tax return for juristic persons, generally filed using the Vaud e-filing solutions (e.g. VaudTax for persons morales) or on paper. The same return covers both the cantonal/communal taxes and direct federal corporate income tax. |
| Deadline | As a rule, companies have 255 days after the financial year-end to file the Vaud corporate tax return and attachments, without needing to request an extension. Longer extensions can be requested (typically up to around 285 days after year-end) if justified, using Vaud’s e-Délai or paper process. |
| Documentation | Signed financial statements; profit-to-tax reconciliation; schedules for participation relief, patent box and R&D deduction; intercantonal and international allocation workings; transfer pricing documentation where relevant; supporting calculations for any transitional step-up or dual-rate mechanisms. |
| Assessments & objections | The Vaud tax administration issues combined assessments for cantonal/communal and federal taxes. Objection rights, deadlines and instructions are specified in the assessment notice. For complex cases, it is common to resolve issues via written submissions and, where appropriate, meetings with the tax office. |
FAQs
How high is the corporate income tax rate in Vaud?
For an ordinarily taxed company, the combined corporate income tax burden in Vaud (cantonal, communal and federal) is generally around 14% of net profit before tax in typical municipalities such as Lausanne, rising to around 14.7% for profits above CHF 10 million due to a progressive schedule. Exact rates vary slightly by municipality and profit level.
Is Vaud considered a high- or low-tax canton for companies?
Vaud sits in the competitive mid-range of Swiss corporate tax cantons. Its combined profit tax burden is higher than in Switzerland’s classic low-tax cantons (e.g. Central Switzerland) but clearly more attractive than the traditional high-tax cantons. For many operating businesses in the Lake Geneva region, the mix of rates, ecosystem and labour market is compelling.
What STAF instruments does Vaud offer for companies?
Vaud offers a patent box with a 60% special deduction on qualifying net patent income, an R&D super-deduction of up to 50% on qualifying Swiss R&D expenses, participation relief and transitional rules for former status companies. The combined impact of these instruments is limited by a relief cap of 50%, so that at least half of the taxable profit always remains fully taxed at ordinary rates. In well-structured cases, the effective profit tax rate can be reduced to around 11% of net profit before tax.
How does capital tax work for companies in Vaud?
Companies in Vaud pay capital tax on equity at combined cantonal and communal rates. Depending on the municipality, typical capital tax rates range roughly from 0.06% to 0.14% of taxable equity. Vaud grants reductions for certain categories of equity (e.g. qualifying participations), which can significantly reduce the burden for holding, financing and IP structures. Profit and capital tax are assessed together via the same return.
Are dividends from subsidiaries fully taxed in Vaud?
No. Qualifying participations benefit from participation relief at federal and cantonal level. This mechanism reduces the effective tax burden on net participation income (dividends and certain capital gains) using a formula that compares participation income to total profit. Where the conditions are met, the effective Vaud and federal tax on such dividends can fall to a low single-digit percentage.
How are losses treated for Vaud 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 restructurings or changes of ownership, special Swiss rules may limit the use of losses; advance tax rulings are often used where material loss carryforwards are involved and Vaud is a key canton in the structure.
Can I get a ruling on a planned structure, relocation or IP setup in Vaud?
Yes. Vaud routinely grants advance tax rulings on corporate income and capital tax matters, including holding and financing structures, IP arrangements and reorganisations, as well as the application of the patent box, R&D deduction and relief cap. A well-prepared ruling request can provide valuable certainty on the tax treatment and its interaction with federal tax and global minimum tax considerations.
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