Thrugau Corporate & Capital Tax Calculator
Last updated: 14 Dec 2025
Thurgau Corporate & Capital Tax Calculator (Approximate)
Quick, approximate modelling of Thurgau (TG) company tax: combine cantonal/communal profit tax, capital tax and Swiss federal corporate income tax on a given level of taxable profit and equity. Designed for educational planning — not as an official Thurgau tax tool.
Thurgau Tax Calculator (Approximate)
This calculator assumes a standard Thurgau corporate setup without special regimes (no patent box, R&D super-deduction, notional interest deduction, holding status history, restructuring effects, etc.). Commune-by-commune nuances are not reflected.
Results (Illustrative)
Approximate effective rate on profit: –
Figures are rounded and for illustration only. Minimum tax, special statuses and intercantonal allocation are not modelled.
Assumptions & Methodology
| Parameter | Value used | Comment |
|---|---|---|
| Cantonal simple profit tax rate | 3.00% of taxable profit | Applied as a simple (basic) profit tax, then multiplied by a combined cantonal/communal factor. |
| Combined cantonal/communal factor (illustrative) | Approx. 265% (factor 2.65) | Used to approximate the combined cantonal + communal layer for a typical Thurgau location. |
| Cantonal simple capital tax rate | 0.3‰ of taxable equity | Applied to the equity base, then multiplied by the same combined factor. |
| Federal corporate income tax | ~7.83% of profit before tax | Derived from 8.5% on profit after tax; modelled here as an effective percentage of profit before tax. |
| Location within Thurgau | Standard factor | The calculator uses one unified factor for simplicity; communal nuances are not reflected. |
| Special regimes | Not modelled | Patent box, R&D deductions, notional interest deduction, special statuses and other instruments are excluded to keep the calculator transparent. |
This is not an official Thurgau calculator. It is a deliberately simple approximation for planning and education. For filings, transactions, group structuring or rulings, please rely on official tools and professional advice.
Worked Example
Assume a standard Thurgau company with:
- Taxable profit before tax: CHF 1,000,000;
- Taxable equity (capital tax base): CHF 2,000,000;
- No special regimes or loss carryforwards.
Under the calculator assumptions, very roughly:
- Cantonal/communal profit tax ≈ CHF 79,500
- Capital tax ≈ CHF 1,590
- Federal corporate income tax ≈ CHF 78,300
- Total tax ≈ CHF 159,390
- Effective rate on profit ≈ 15.9%
These figures are rounded and illustrative. A real-world assessment would also consider loss carryforwards, participation relief, STAF instruments, commune-specific multipliers and any minimum tax rules.
Official Tools & When to Get Advice
| Tool / resource | Use case | Comment |
|---|---|---|
| Thurgau official company tax calculator | Estimate cantonal/communal and federal tax using official parameters by year and municipality. | Use the Thurgau official calculator for municipality-accurate figures: Open Thurgau tax calculation page. |
| Federal tax calculator environment (ESTV/AFC) | Benchmark tax burdens across cantons. | Helpful for location comparisons and sanity checks. |
| Thurgau Tax Service (TaxRep) | Structuring, rulings and transaction support for Thurgau corporate & capital tax. | See Thurgau Tax Service and Thurgau Business Tax Service. |
FAQs
How accurate is this Thurgau calculator?
It is intentionally simplified. It uses indicative Thurgau profit and capital tax parameters plus federal tax to generate a quick combined estimate. It does not model minimum tax, detailed communal nuances, loss carryforwards, allocation between cantons or special regimes, so it should not be used as the sole basis for decisions.
Can I use this output for my financial statements?
No. Financial statements, budgets and tax provisions should be based on more detailed models or official calculators aligned with the latest law and practice. This tool is for education and high-level planning only.
Does this calculator handle intercantonal or international allocation?
No. It assumes a company taxed entirely in Thurgau. If you have permanent establishments, properties or functions in other cantons or countries, you will need an allocation model and, often, local advice.
Can Sesch TaxRep help refine these numbers?
Yes. We can build a company-specific Thurgau tax model, prepare or review corporate tax returns, and assist with rulings and structuring. See the Thurgau service links above or use the general contact form on taxrep.us.