Fribourg Corporate Income Tax
Last updated: 10 Dec 2025
Fribourg Corporate Income Tax — Profit Tax Rules
How corporate income tax works in the Canton of Fribourg: who is subject to profit tax, how the tax base is derived from accounting profit, how the 4% cantonal profit tax for juristic persons, municipal factors, the Fribourg social levy and the Swiss direct federal corporate income tax interact, and what to know about participation relief, patent box, the 50% R&D super-deduction, the 20% relief cap and loss carryforwards.
Scope & Taxpayers
- Resident companies. Companies with statutory seat or effective place of management in Fribourg 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 Fribourg if they have local business operations, a permanent establishment, or Fribourg-situs real estate. Only the profits attributable to the Fribourg nexus are taxed.
- Juristic persons only. The corporate income tax described here applies to juristische Personen (AG, GmbH, cooperatives, 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 Fribourg tax administration.
Tax Base: From Accounting Profit to Taxable Profit
Fribourg corporate income tax is levied on the company’s taxable profit, determined by starting from statutory financial statements and then making tax adjustments in line with federal and cantonal rules.
| Step | Description | Typical adjustments |
|---|---|---|
| 1. Accounting profit | Profit after tax per statutory financial statements for the relevant business year (Swiss Code of Obligations, with Swiss GAAP FER or IFRS used for groups where applicable). | 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 profit and capital taxes and the social levy itself; certain 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 limits); specific provisions; participation relief; Fribourg patent box reduction; additional 50% R&D deduction where applicable. |
| 4. Allocation & exemptions | Profits allocable to other cantons or foreign permanent establishments are exempt in Fribourg under intercantonal and treaty rules, subject to progression. | 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 Gesetz über die direkten Kantonssteuern des Kantons Freiburg (DStG), the cantonal practice notes and the Wegleitung for juristic persons set out detailed guidance on depreciation, provisions, hidden equity, participation relief, patent box, the 50% R&D additional deduction and the 20% relief cap. 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
For corporate income tax on juristic persons, Fribourg applies a 4% simple cantonal profit tax on net profit for all companies (capital companies, cooperatives, associations, foundations and other juristic persons). This simple tax is multiplied by the annual cantonal tax factor and by the municipal tax factor of the company’s location.
- The cantonal tax factor is set annually; municipalities apply their own multipliers for juristic persons within a permitted range, so the effective burden varies by commune.
- On top of profit tax, Fribourg levies a separate social levy equal to 8.5% of the simple cantonal profit tax, billed separately, to finance social compensation measures.
- Following the 2020 reform, the average combined profit tax burden for companies in Fribourg is around 13.7% on profit before tax, with the City of Fribourg showing an effective rate of roughly 13.87% when cantonal, communal and federal components are combined.
The exact burden for a given municipality and fact pattern can be obtained via the official Fribourg tax tools and the federal Swiss tax calculator, as well as the Rates page of this hub.
Federal corporate income tax & combined rate
In addition to cantonal/communal profit tax and the Fribourg social levy, 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.
When cantonal, communal, church (where applicable), federal profit tax and the social levy are combined, the ordinary corporate income tax burden in the City of Fribourg for standard capital companies is around 13.9% on profit before tax. Other municipalities in the canton can be slightly lower or higher, depending on their tax factors.
The Fribourg tax calculator on this hub is designed to help model combined cantonal, communal and federal profit tax, capital tax and the social levy for a given level of taxable profit.
Participation Relief & STAF Measures
Fribourg follows federal rules for participation relief and has implemented STAF (Swiss corporate tax reform and AHV financing) with a combination of patent box, a 50% additional R&D deduction and a relatively tight 20% relief cap.
| Mechanism | Overview | Typical planning aspects |
|---|---|---|
| Participation relief | Qualifying dividends and capital gains from shareholdings in subsidiaries benefit from a participation deduction. Net participation income is compared to total profit to compute a deduction that significantly reduces the effective tax burden on qualifying investments. | Minimum shareholding thresholds (e.g. 10% or CHF 1 m market value); holding period; treatment of write-downs and liquidation proceeds; interaction with foreign withholding tax and treaty relief; alignment with dividend policy at shareholder level. |
| Patent box (90% reduction) | Fribourg applies a patent box regime under which net income from qualifying patents and comparable rights is taxed separately at cantonal and communal level with a 90% reduction: only 10% of qualifying patent income is included in the cantonal tax base. | Identifying qualifying patents and comparable rights; nexus-compliant tracking of R&D; allocation methodology for box income; modelling the benefit against the 20% relief cap; documentation to support the box calculation. |
| R&D super-deduction (50%) | Fribourg grants an additional deduction of up to 50% of qualifying research and development expenditure incurred in Switzerland, on top of the normal expense deduction. The taxable base for the 50% add-on is determined using R&D personnel costs with a 35% uplift for related overhead and a percentage of domestic third-party R&D. | Defining qualifying R&D; separating Swiss from foreign R&D; documenting time allocation and personnel cost bases; coordinating the R&D deduction with the patent box so that the combined benefit remains within the 20% relief cap. |
| Relief cap (20%) | Under Fribourg’s relief restriction, the combined tax relief from the 50% R&D additional deduction and the patent box may not exceed 20% of taxable profit before loss offset and before these reliefs, excluding net participation income. At least 80% of the relevant profit must therefore remain fully taxable at cantonal/communal level. | Modelling relief usage over time; prioritising between patent box and R&D deduction if the 20% cap is reached; avoiding the creation of additional loss carryforwards from relief instruments; interaction with global minimum tax (for larger groups). |
The relatively low 20% relief cap means that Fribourg’s STAF instruments are more modest than in some other cantons with 50–70% caps. They can still provide meaningful optimisation for innovative businesses, but they do not transform Fribourg into a very low-tax canton.
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 Fribourg. There is no loss carryback. Relief instruments (patent box and R&D deduction) may not generate new loss carryforwards under the cantonal relief restriction.
- Group situation. Switzerland has no fiscal unity or tax consolidation regime for ordinary corporate income tax. Each Fribourg legal entity files its own return; group effects are managed via financing, transfer pricing, participation relief and, where relevant, group VAT registration.
- 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 jurisprudence. Fribourg applies these nationwide principles consistently.
- Foreign permanent establishments. Under many treaties, profits attributable to foreign permanent establishments are exempt in Switzerland with progression. Accurate attribution of profits and capital, and consistent transfer pricing, are essential to support the exemption for Fribourg and federal tax.
- Restructurings & step-up. 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.). Fribourg has specific step-up rules for hidden reserves when moving from privileged to ordinary status and for inbound migrations; these are typically implemented via advance tax rulings.
- Social levy. The Fribourg social levy is assessed together with the corporate profit and capital tax. It is calculated as 8.5% of the simple cantonal profit tax and billed separately, but it effectively increases the overall profit-tax-related burden.
Interaction with Capital Tax
Profit tax and capital tax are closely linked in Fribourg. Profit tax is levied on taxable income, while capital tax is levied on the company’s equity. Both taxes are assessed based on the same corporate return for juristic persons.
- For companies, the simple capital tax rate is 1 ‰ (0.1%) of taxable equity. Equity related to qualifying participations and patents is taxed at a reduced rate of 0.1 ‰ (0.01%). Municipal tax factors then apply on top of these simple rates.
- Fribourg grants a credit of profit tax against capital tax: the profit tax paid by juristic persons is imputed to the capital tax up to the amount of capital tax due. In profitable years, this often means that capital tax is largely or fully offset.
- The reduced capital tax rate for participation and patent-related equity aligns the capital tax base with the STAF instruments on the profit side, making holding and IP-heavy structures more attractive.
- The level and stability of equity influence the company’s overall tax burden: higher equity increases capital tax (especially where profit is low), but strengthens the thin-capitalisation profile and reduces the risk of interest being recharacterised as hidden equity for profit tax purposes.
- For details on rates and base, see the Fribourg capital tax page and the combined tax calculator.
Compliance Snapshot
This guide focuses on the substantive rules for corporate income tax in Fribourg. 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 using the Fribourg forms (including annex T for STAF measures), covering cantonal/communal profit and capital tax, the social levy and direct federal tax on profit. Electronic completion via e-tax JP is available; signed returns and financial statements remain the formal basis. |
| Deadline | Filing deadlines for juristic persons are indicated on the first page of the tax return for the relevant period. Extensions can be obtained upon written or online request before the original deadline; more substantial extensions may require justification or professional representation. |
| Documentation | Signed financial statements; profit-to-tax reconciliation; annex T for the patent box, R&D deduction and relief cap; schedules for participation relief; capital tax computation; inter-cantonal allocation schedules; transfer pricing documentation where relevant; copies of any rulings and step-up calculations. |
| Assessments & objections | Integrated assessment for cantonal, communal, church (where applicable) and federal taxes plus the social levy. Objection rights and deadlines are set out in the assessment notice. In complex structures, Fribourg commonly works with advance rulings rather than leaving material interpretative questions to the objection phase. |
FAQs
How high is the corporate income tax rate in Fribourg?
After the 2020 reform, Fribourg’s average combined corporate income tax burden for juristic persons is around 13.7% on profit before tax. For the City of Fribourg, current comparisons show a combined rate of about 13.87% on profit before tax, including cantonal, communal and direct federal profit taxes, but excluding special incentives such as tax holidays. The exact burden depends on the municipality’s tax factors and on the use of instruments such as the patent box and the 50% R&D additional deduction (within the 20% relief cap).
What is the difference between profit tax and capital tax in Fribourg?
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, open and hidden reserves) at the balance sheet date. In Fribourg, the simple capital tax rate is 1 ‰ of equity, with a reduced rate of 0.1 ‰ for equity related to qualifying participations and patents. Municipal multipliers apply on top. The profit tax is credited against capital tax, so in profitable years the capital tax often functions mainly as a minimum tax. Both taxes are assessed together, but they operate on different tax bases.
Are dividends from subsidiaries fully taxed in Fribourg?
No. Qualifying shareholdings benefit from participation relief. Net participation income (dividends and certain capital gains) leads to a participation deduction that significantly reduces the effective tax burden at corporate level. At shareholder level, Fribourg applies partial taxation for dividends from substantial participations, mitigating economic double taxation.
Does Fribourg offer a patent box and R&D special deductions?
Yes. As part of STAF, Fribourg offers a patent box with a 90% reduction on net income from qualifying patents and comparable rights, and an additional deduction of up to 50% on qualifying research and development expenditure in Switzerland. However, the combined relief from these instruments is capped at 20% of taxable profit (excluding participation income), so at least 80% of the relevant profit remains fully taxable.
How are losses treated for Fribourg 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. Under Fribourg’s relief restriction, the patent box and the R&D super-deduction may not create additional tax losses; the relief can only reduce positive profit within the 20% cap. In restructurings or ownership changes, special rules and step-up provisions can affect losses, so advance tax rulings are often used.
What is the Fribourg social levy and how does it affect companies?
The Fribourg social levy is a separate charge introduced alongside the 2020 corporate tax reform to finance social compensation measures. It is calculated at 8.5% of the simple cantonal profit tax for juristic persons and is invoiced separately from the profit and capital taxes. While not a tax in the narrow sense, it increases the overall burden associated with corporate profits in the canton.
Can I get a ruling on a planned structure or transaction in Fribourg?
Yes. Fribourg offers advance tax rulings for corporate structures, financing arrangements, step-up situations, application of the patent box and the 50% R&D deduction, reorganisations and the treatment of losses. A well-prepared ruling request can provide certainty on the corporate income tax treatment, its interaction with capital tax, the social levy and direct federal tax, and its compatibility with global minimum tax considerations for larger groups.
Get Fribourg business tax help (Sesch TaxRep GmbH) Fribourg cantonal tax service