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Lump-sum taxation (forfait fiscal) is a unique Swiss feature that taxes you on a fixed, agreed expense-based amount rather than your actual income. Instead of declaring dividends, rental income, business profit, or foreign earnings, you and the cantonal tax authority agree on a taxable base calculated from your living expenses. This taxable base is then taxed at ordinary income rates for the canton and municipality.
Here's the key advantage: your actual income is irrelevant. If you earn CHF 1 million from foreign dividends but your living expenses suggest a CHF 500,000 taxable base, you pay tax on CHF 500,000 - not CHF 1 million. This is why lump-sum taxation has become the gold standard for high-net-worth British expats relocating to Switzerland.
The taxable base is calculated as the highest of four amounts: - Your annual cost of living (estimated by you and the canton) - Seven times your annual rent - The federal or cantonal minimum (CHF 435,000 federal; cantons often set CHF 400,000-600,000+ minimums) - Any income from Swiss sources (salary, Swiss rental property, etc.)
Once agreed, this taxable base is normally fixed for 5-10 years. You pay ordinary income tax (plus municipal and church taxes, where applicable) on this amount. For a CHF 500,000 base in Zug at 20%, that's CHF 100,000 annual tax - regardless of whether you earned CHF 500,000 or CHF 5 million in actual income.
Lump-sum taxation is restricted to individuals with no gainful employment in Switzerland. This means: - Salaried employees in Switzerland cannot use it - Business owners without Swiss clients or employees often qualify - Retired individuals relocating with foreign pensions qualify - Property investors deriving income from foreign sources qualify - Individuals living on portfolio income (dividends, interest, capital gains) from foreign assets qualify
The key is that your income must not be earned in Switzerland. If you take a job in Switzerland, you lose lump-sum eligibility immediately.
The federal minimum for 2026 is CHF 435,000. However, cantons set their own minimums, which can be significantly higher: - EU/EFTA citizens benefit from a reduced federal minimum of CHF 400,000 - Cantons may set minimums of CHF 450,000 to CHF 600,000+ - Some cantons adjust minimums annually for inflation
This is why canton selection is critical. A CHF 50,000 difference in the minimum taxable base, taxed at 20%, equals CHF 10,000 annual tax savings.
Not all cantons offer lump-sum taxation. As of 2026, Bern, Zurich, and several other cantons have abolished it. The main cantons that still offer lump-sum taxation include Vaud, Valais, Zug, Lucerne, Schwyz, and a handful of others.
Moreover, each canton negotiates lump-sum rates individually. A CHF 500,000 taxable base in Zug might be taxed at 20% (CHF 100,000), while the same amount in a higher-tax canton could face 40% (CHF 200,000). This 100% variation is why choosing the right canton is as important as the lump-sum structure itself.
Consider a practical scenario: a British retired property investor relocates to Switzerland with CHF 800,000 in annual foreign rental income. Under standard Swiss residency: - Rental income is fully taxable in Switzerland - At an average cantonal rate of 30%, this creates a CHF 240,000 annual tax bill - Social contributions (AHV, IV) may add another CHF 30,000+ - Total: approximately CHF 270,000
Under lump-sum taxation in a low-tax canton like Zug: - Living expenses are estimated at CHF 150,000 annually - Taxable base = highest of: CHF 150,000 cost of living, 7 × rent (say, CHF 35,000 = CHF 245,000), or CHF 435,000 minimum - Taxable base = CHF 435,000 - Tax at 20% = CHF 87,000 - Savings: CHF 270,000 - CHF 87,000 = CHF 183,000 per year
Over a 10-year lump-sum agreement, this investor saves CHF 1.83 million in Swiss taxes - enough to offset relocation costs, legal fees, and property purchases several times over.
When you enter a lump-sum taxation agreement, the taxable base is typically fixed for either 5 or 10 years. This provides certainty for financial planning. You know exactly what you'll pay in taxes regardless of income fluctuations.
However, if your circumstances change materially (retirement income drops, you sell major assets, you marry a Swiss citizen), renegotiation may be possible. Some cantons allow you to request a review after significant changes.
At the end of the agreement period, you can: - Renew at a potentially new rate (reflecting your current circumstances) - Exit and revert to standard Swiss residency taxation - Negotiate a new rate if your situation has changed
Many British expats miss the lump-sum window because they secure employment before researching taxation. If you accept a job in Switzerland, you immediately disqualify yourself from lump-sum taxation**.** Some employers sponsor B-permits that lock you into standard residency taxation.
The optimal sequence is:
Timing is everything. Secure your lump-sum agreement in place before your first Swiss tax return is due.
Mary, a 52-year-old British expat, relocates to Valais with a GBP 3 million UK investment portfolio generating approximately GBP 120,000 in annual dividends and interest. Under UK tax residency, Mary paid approximately 20% on dividends and 40% on interest. In Switzerland, without lump-sum taxation, this income would be subject to approximately 25% cantonal and municipal tax plus social contributions.
Under lump-sum taxation in Valais: - Taxable base = CHF 435,000 (federal minimum) - Effective tax rate = 23% - Annual tax = CHF 100,000 (approximately GBP 54,000 at 1.85 exchange rate) - UK taxes eliminated: GBP 18,000+ annually - 10-year savings: GBP 180,000+
Mary's investment income is now taxed more lightly, and she avoids the complexities of UK-Swiss tax treaty administration.
James, 58, owns four UK rental properties generating GBP 80,000 annual net rental income. He also holds a portfolio of dividend-paying UK shares worth GBP 2 million. He plans to retire to Zug.
Under standard Swiss residency, his rental income and dividends would be taxed at approximately 28% combined (cantonal, municipal, and social contributions), creating a CHF 75,000+ annual bill.
Under lump-sum taxation in Zug: - Living expenses estimated at CHF 120,000 - Taxable base = CHF 435,000 (federal minimum, likely higher in Zug negotiations) - Zug rate = 20% - Annual tax = CHF 87,000 - Savings vs standard residency = CHF 50,000+ annually - 10-year agreement: CHF 500,000+ in savings
Additionally, James maintains the UK-Switzerland DTA benefit on his UK rental income, ensuring it's not double-taxed.
Sarah runs a digital marketing consultancy based in London, serving UK and European clients. She generates GBP 180,000 annual profit but plans to relocate to Valais for lifestyle reasons. She has no intention of serving Swiss clients.
Because her income is not earned in Switzerland, she qualifies for lump-sum taxation. Her UK business income (approximately CHF 330,000 at current rates) would typically be subject to 25-30% Swiss tax if she were a standard resident.
Under lump-sum taxation: - Taxable base = CHF 435,000 - Valais rate = 23% - Annual tax = CHF 100,000 - Savings = CHF 75,000-100,000 annually - Business can remain UK-registered and fully UK-taxed (no double taxation via DTA)
Sarah's business remains in the UK, her income is taxed minimally in Switzerland, and she gains Swiss residency and benefits without the employment complications.
In each scenario, the key advantage is separation of income location from tax location. Income earned abroad is taxed on a predictable expense-based figure in Switzerland, not on actual earnings. This structure is especially powerful for retirees, investors, and business owners - not salaried employees.
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Choosing the right canton is the single largest lever in lump-sum taxation planning. A CHF 500,000 taxable base at 20% = CHF 100,000 tax. The same base at 40% = CHF 200,000 tax. That's a CHF 100,000 annual difference - CHF 1 million over a 10-year agreement.
Zug is Switzerland's most famous low-tax canton, offering effective lump-sum rates of approximately 18-21% on higher income levels. However, Zug has become saturated with high-net-worth individuals, and residency may be restricted or competitive.
Valais offers rates of approximately 19-23% and remains welcoming to international expats. The canton actively encourages lump-sum applicants and processes applications efficiently.
Vaud (the canton containing Lausanne and Lake Geneva) offers rates of approximately 22-26% and is highly attractive to UK expats due to English-speaking infrastructure and proximity to Geneva.
Lucerne and Schwyz are middle-tax cantons offering rates of 24-28%, still significantly below Swiss averages.
Higher-tax cantons (Bern, Zurich, Basle) either abolished lump-sum taxation entirely or offer rates exceeding 35-40%, negating much of the tax advantage.
Some high-net-worth expats relocate within Switzerland to secure low-tax canton residency. For example: - Spend 2-3 years establishing Swiss residency in a standard high-tax canton - Build social ties, purchase property, and demonstrate genuine settlement - Apply for cantonal relocation to a low-tax jurisdiction - Negotiate lump-sum taxation in the new canton
This approach requires patience but can unlock significant long-term tax benefits.
Lump-sum taxation is not a fixed formula - cantons negotiate rates individually. Your personal circumstances (age, family status, health, housing costs) influence the negotiated rate. Hiring a specialist lump-sum taxation adviser can reduce your rate by 1-3%, equivalent to CHF 5,000-15,000 annually.
Remember: lump-sum taxation requires no gainful employment in Switzerland. If you take a job in Switzerland, you lose eligibility immediately. This is why business owners often prefer lump-sum taxation to salaried employment.
Also, some cantons conduct regular audits to verify that your claimed living expenses align with reality. If you claim CHF 120,000 annual expenses but own multiple properties, luxury cars, and expensive hobbies, the canton may challenge your application or demand higher taxable bases.
When you move from the UK to Switzerland under lump-sum taxation, the UK-Switzerland double taxation agreement (DTA) still applies. This means:
Your UK state pension is taxable in both the UK and Switzerland under the DTA. However, under lump-sum taxation, this is irrelevant because all income (pensions, dividends, rental) is subsumed into the taxable base.
If you retain UK rental properties, those rental profits are normally taxable in the UK first (at UK rates), and Switzerland grants a foreign tax credit for UK taxes paid. Under lump-sum taxation, this complication is avoided because rental income is part of the expense-based calculation, not separately taxed.
If you sell UK property or shares before or after moving to Switzerland, UK capital gains tax applies on the UK gain. Switzerland's 0% private capital gains tax does not extend to UK-sourced disposals. This is why crystallising UK capital gains before relocating and entering lump-sum taxation is strategically important.
Lump-sum taxation does not exempt you from financial reporting. You must still report all foreign bank accounts and assets to the Swiss tax authority (FINMA rules, Swiss AML regulations, and CRS automatic exchange of information). The lump-sum agreement simply changes how your income is taxed, not what you must report.
Lump-sum taxation applies to income tax only. You're still subject to Swiss VAT (7.7% standard rate), property transfer taxes, and wealth taxes (in cantons that levy them). These are not reduced by lump-sum agreements.
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Before relocating, contact the cantonal tax authority (Steueramt) of your target canton and request lump-sum taxation information. Provide details of your age, estimated annual expenses, housing situation, and income sources. The canton will indicate whether you qualify and provide a preliminary indication of taxable base and rate.
During this phase, also engage a specialist lump-sum taxation adviser (Steuerberater or tax consultant) who works regularly with expats. Their fee (typically CHF 5,000-15,000 for initial setup) is easily offset by securing a 1-3% lower rate.
Apply for a B-permit (residence permit, valid 5 years) or C-permit (settlement permit, indefinite) through the cantonal immigration office. Most low-tax cantons sponsor B-permits for lump-sum applicants without requiring employment.
During residency processing, the tax authority begins preliminary negotiations on your taxable base. You'll provide documentation of anticipated living expenses, housing rental agreements, and income sources.
Once you arrive in Switzerland and register with the canton, finalise the lump-sum agreement in writing. This agreement specifies: - The taxable base (e.g., CHF 435,000) - The effective tax rate (e.g., 20%) - The agreement period (5 or 10 years) - Conditions for renegotiation or termination
The agreement typically becomes effective from your first day of Swiss tax residency (registration with the canton). You pay your first lump-sum tax based on the pro-rata portion of the first year.
Once your agreement is in place, you file annual Swiss tax returns and pay the agreed lump-sum amount. This is typically straightforward: the canton sends a bill, you pay it, and you're compliant. No complex income reporting is required.
However, you must still: - Report all foreign bank accounts and assets - File annual declarations of any Swiss-source income (if you acquire a Swiss job, sell Swiss property, etc.) - Maintain documentation of living expenses (in case of audit) - Notify the canton of significant life changes (marriage, retirement, major asset sales)
When your 5 or 10-year agreement expires, you can: - Renew at a potentially revised rate (reflecting your current circumstances) - Exit and revert to standard Swiss residency taxation - Renegotiate if your situation has changed materially
Many expats renew their lump-sum agreements indefinitely, ensuring stable, low-tax residency for life.
Yes. Lump-sum taxation is determined individually, not by household. If you're married and both relocate to Switzerland, each spouse can negotiate their own lump-sum agreement based on individual circumstances. Spouses with no independent income may have lower taxable bases. Children's status does not affect lump-sum eligibility.
Most cantons allow renegotiation if circumstances change materially. If you retire and lose employment income, you can request a lower taxable base. If you inherit CHF 5 million, the canton may request a higher base. These adjustments are negotiated case-by-case; the original agreement does not automatically adjust.
No. Accepting a job in Switzerland disqualifies you from lump-sum taxation. However, some business owners structure their affairs to avoid "gainful employment" designation. Consult a tax adviser to confirm your specific situation.
Yes, but it's subsumed into the taxable base. You don't separately declare or pay tax on the pension; it's included in the expense-based calculation. This simplifies administration compared to standard Swiss residency.
Lump-sum taxation applies to income tax only. Wealth taxes (cantonal taxes on assets, levied in some cantons) are separate and still apply. Some low-tax cantons have abolished wealth taxes, making them doubly attractive for high-net-worth expats.
Cantons negotiate individually, not on pre-set formulas. Your age, family situation, claimed living expenses, and total asset value all influence the rate. Working with a specialist adviser often yields a 1-3% lower rate.
No. Lump-sum taxation is only binding while you're tax-resident in the canton. If you leave Switzerland and cease tax residency, the agreement terminates. However, any period during which you were tax-resident requires compliance with the agreement (or standard taxation for the portion of the year before lump-sum agreement finalisation).
This article provides general information only and is not personal tax or financial advice. Tax laws change, and cantonal regulations vary significantly. Consult a Swiss tax adviser and qualified financial planner before making residency or tax planning decisions. Mathew Turnbull is a financial adviser, not a tax accountant; tax-specific matters require a Swiss tax specialist (Steuerberater).
Choosing the right canton can cut your lump-sum tax rate by 40-50%. Low-tax cantons (Zug, Valais, Vaud) offer rates as low as 18-22%, while higher-tax regions may demand 35-45%. For a CHF 500,000 taxable base at 20% vs 40%, that's CHF 100,000 annual savings.
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Every expat's situation is unique. Let's calculate your actual tax savings under lump-sum taxation vs standard residency. Mathew Turnbull works with HNW British expats across Switzerland's lowest-tax cantons to lock in predictable, minimal tax bills from day one.
