By Denis Smajovik, FINMA-registered Insurance Intermediary (F01490726), BSc Business Administration ZHAW · Last updated: April 2026
In Switzerland, private individuals can legally save CHF 5,000–20,000 or more in taxes every year through the right combination of deductions. The most powerful levers are pillar 3a contributions (up to CHF 7258 deductible), voluntary pension fund buy-in contributions (up to CHF 100,000+), and choosing a tax-efficient municipality of residence. This guide explains all 10 strategies with specific CHF figures, worked examples, and instructions for declaring each deduction in your Swiss tax return.
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All 10 Strategies at a Glance
| # | Strategy | Potential annual saving | Who benefits |
|---|---|---|---|
| 1 | Maximise pillar 3a | CHF 1,700–2,500/year | All employed persons |
| 2 | Pension fund (BVG) buy-in | CHF 2,500–35,000+ (one-off) | Those with contribution gaps |
| 3 | Property maintenance costs | CHF 1,000–10,000+/year | Homeowners |
| 4 | Professional expenses | CHF 1,000–5,000/year | All employees |
| 5 | Child deductions | CHF 1,500–6,000/year | Families |
| 6 | Medical and accident costs | Up to CHF 3,000+/year | High healthcare spenders |
| 7 | Mortgage interest | CHF 2,000–15,000+/year | Homeowners and borrowers |
| 8 | Charitable donations | Up to 20% of income | All taxpayers |
| 9 | Relocation costs | CHF 2,000–8,000 (one-off) | Job-related movers |
| 10 | Canton of residence | CHF 5,000–30,000+/year | Those with flexibility |
1. Pillar 3a — Deduct Up to CHF 7258 from Your Taxable Income
Potential saving: CHF 1,700–2,500/year
The pillar 3a (Säule 3a / third pillar, tied private pension) is the most accessible and most widely used tax deduction in Switzerland. The entire contribution amount is deducted from your taxable income — at federal, cantonal, and communal level simultaneously.
Maximum Contribution 2025
- Employees with a pension fund: CHF 7258
- Self-employed without a pension fund: CHF 36288 (max. 20% of net profit)
Worked Example
An employee in Zürich on CHF 100,000 gross with a marginal tax rate of 33% saves through the full pillar 3a contribution: CHF 7258 × 33% = approx. CHF 2,400 per year. Over 30 years that equals approximately CHF 72,000 in saved taxes — plus the investment return on the accumulated capital.
[!tip] Open 3–5 separate pillar 3a accounts. At retirement you can dissolve them in different tax years to reduce the progressive tax rate on each payout — saving an additional CHF 5,000–15,000.
How to Declare It
Enter your contribution under "Deductions > Pension > Pillar 3a". Attach the annual certificate from your bank or insurance provider. The deduction is applied automatically at federal, cantonal, and communal level. For the full pillar 3a strategy, see the Pillar 3a glossary entry.
2. Pension Fund (BVG) Buy-In — Deduct CHF 10,000–100,000+
Potential saving: CHF 2,500–35,000+ (one-off)
A voluntary buy-in contribution to your occupational pension fund (pillar 2 / BVG) is the most powerful tax tool available to higher earners in Switzerland. The full buy-in amount is deductible in the year of payment — with no upper limit (Art. 79b BVG), as long as a contribution gap exists.
Eligibility Requirements
- Contribution gap exists: shown on your personal pension certificate (Vorsorgeausweis) — request it from your pension fund
- No capital withdrawal planned within 3 years: if you plan a WEF early withdrawal or are approaching retirement, the 3-year lock-up rule applies
- Stagger the buy-in: spread large amounts over 2–3 tax years to maximise the progression benefit
[!example] You have a contribution gap of CHF 80,000 and a marginal tax rate of 35%. A buy-in of CHF 40,000 in year one and CHF 40,000 in year two yields a tax saving of 2 × CHF 14,000 = CHF 28,000 total. A single CHF 80,000 buy-in would save less due to tax progression on the higher single-year deduction.
How to Declare It
Enter the buy-in amount under "Deductions > Pension > Buy-in into pillar 2". Attach the confirmation from your pension fund. For information on when to take the capital back out, see the Pension Fund Withdrawal Guide.
3. Property Maintenance and Renovation Costs
Potential saving: CHF 1,000–10,000+/year
If you own residential property in Switzerland, you must declare the imputed rental value (Eigenmietwert) as income. In return, you can deduct value-preserving maintenance costs in full. You choose each year between the flat-rate and actual-cost methods.
Flat-Rate vs. Actual Costs
| Method | Deduction | When it pays off |
|---|---|---|
| Flat-rate | 10% of imputed rental value (buildings < 10 years) or 20% (> 10 years) | In years without major renovation work |
| Actual costs | Full costs with receipts | In years with boiler replacement, roof work, or facade renovation |
What Counts as Deductible (Value-Preserving)?
- Heating servicing, painting, window replacement, roof maintenance
- Garden maintenance, caretaking costs, snow removal
- Plumbing repairs, electrical work, chimney sweeping
- Energy-efficiency improvements (partially deductible even if value-enhancing)
[!tip] Time large renovation projects strategically across two tax years. In the high-cost year choose actual costs; the following year revert to the flat-rate. This maximises the progression benefit.
How to Declare It
Under "Property costs", select either flat-rate or actual costs. For actual costs: attach all invoices and receipts. Avenzo automatically identifies which method is more advantageous in your situation. Use the Avenzo imputed rental value calculator to estimate your net tax position.
4. Professional Expenses — Most Frequently Overlooked
Potential saving: CHF 1,000–5,000/year
Professional expenses are among the most commonly forgotten deductions. Many employees in Switzerland do not realise they can claim commuting costs, continuing education, and home-office costs — sometimes as a flat-rate deduction with no receipts required.
Overview of Professional Deductions
| Deduction | Amount | Receipts required? |
|---|---|---|
| Commuting (public transport) | Actual, max. CHF 3,200 (federal tax) | Yes (season ticket) |
| Commuting (private car) | CHF 0.70/km, max. CHF 3,200 (federal tax) | Yes (commuting distance) |
| Continuing education | Up to CHF 12,900/year | Yes (course confirmation) |
| Meals away from home | Flat rate CHF 3,200 | No |
| Work clothing / tools | Actual or flat rate CHF 500–1,000 | Varies by canton |
| Home-office flat rate | CHF 2,400 (varies by canton) | No |
| Specialist literature / software | Actual | Yes |
Worked Example
An employee with an annual public transport pass (CHF 3,860) and a part-time Certificate of Advanced Studies costing CHF 8,500: CHF 3,000 (transport, capped) + CHF 3,200 (meals) + CHF 8,500 (education) + CHF 2,400 (home office) = CHF 17,100 in deductions. At a marginal rate of 30% that is CHF 5,130 in tax savings.
[!info] Since the pandemic, most Swiss cantons accept a home-office flat-rate deduction of CHF 2,400 even when no formal home-office arrangement is written into the employment contract. Rules vary by canton — check your canton's guidance (Wegleitung) or let Avenzo verify it automatically.
5. Child Deductions and Third-Party Childcare
Potential saving: CHF 1,500–6,000/year
Families benefit from several combinable deductions. The amounts vary significantly by canton — in Zürich the child deduction is CHF 9,000 per child, in Zug CHF 12,000, and at federal level CHF 6,700.
Deduction Overview for Families
| Deduction | Federal tax | Cantonal (example ZH) |
|---|---|---|
| Child deduction per child | CHF 6,700 | CHF 9,000 |
| Third-party childcare | Up to CHF 25,500 | Up to CHF 10,100 |
| Maintenance payments (alimony) | Full amount | Full amount |
| Insurance premiums (child) | CHF 700 | CHF 1,300 |
What Counts as Third-Party Childcare?
Day care centres, crèches, registered childminders, after-school care, au pairs, lunch programmes, and full-day schools — anything that is externally organised care during your working hours. Private babysitting in the evening does not qualify.
Worked Example
Family with 2 children in Zürich: 2 × CHF 9,000 (child deduction) + CHF 18,000 (day care for 2 children) + 2 × CHF 1,300 (insurance premiums) = CHF 38,600 in deductions. At a marginal rate of 33%: CHF 12,700 in tax savings.
6. Medical and Accident Costs
Potential saving: up to CHF 3,000+/year
Out-of-pocket medical costs are deductible once they exceed 5% of your net income (the threshold varies by canton; 5% applies at federal level). Many taxpayers reach this threshold without realising it — particularly through dental work and a high health insurance deductible (franchise).
What Is Deductible?
- Dental costs: fillings, crowns, implants, orthodontics — everything not covered by basic health insurance (KVG/LAMal)
- Glasses and contact lenses: full amount with optician receipt
- Hearing aids and medical devices
- Uncovered treatments: physiotherapy, psychotherapy, alternative medicine (if medically prescribed)
- Care costs for dependent relatives living in the same household
- Health insurance deductible (franchise) and co-payment (Selbstbehalt): what you pay directly to your insurer
Worked Example
Net income CHF 80,000 → 5% threshold = CHF 4,000. Your costs: dental work CHF 3,500 + glasses CHF 800 + franchise and co-payment CHF 2,500 = CHF 6,800. Deductible: CHF 6,800 − CHF 4,000 = CHF 2,800. At a marginal rate of 30%: CHF 840 in tax savings.
[!tip] Bundle plannable health expenditures — dental work, new glasses — into a single tax year to clear the 5% threshold more easily. In the following year your costs fall below the threshold and the franchise is simply a living cost.
7. Mortgage Interest and Debt Interest
Potential saving: CHF 2,000–15,000+/year
For homeowners, mortgage interest is often the largest single deduction in the Swiss tax return. All debt interest (mortgage, personal loan, private loan) is deductible up to the level of investment income plus CHF 50,000. Do not forget to reclaim the withholding tax (Verrechnungssteuer) on bank interest and dividends using Form DA-1 — on CHF 50,000 in securities at a 2% yield that is CHF 350/year.
What Is Deductible?
| Interest type | Deductible? | Limit |
|---|---|---|
| Mortgage interest | Yes | Up to investment income + CHF 50,000 |
| Consumer loan interest | Yes | Same ceiling |
| Leasing interest | No | Not deductible |
| Overdraft interest | Yes | Up to ceiling |
Worked Example
Mortgage CHF 600,000 at 2.5% interest = CHF 15,000/year in mortgage interest. At a marginal rate of 33%: CHF 4,950 in tax savings. Note: the imputed rental value is taxed as income while mortgage interest is deducted — net, property ownership is tax-advantaged when interest exceeds the imputed rental value. See the Imputed Rental Value glossary entry for the full interaction.
8. Charitable Donations
Potential saving: CHF 500–20,000+/year
Donations to tax-exempt organisations (Art. 33a DBG) are deductible at federal level up to 20% of net income. Cantonal ceilings vary — in Zürich, for example, also 20% with a minimum donation of CHF 100.
What Counts as a Deductible Donation?
- Aid organisations and NGOs: Red Cross, Caritas, Médecins Sans Frontières, WWF
- Cultural institutions: museums, theatres, orchestras
- Educational institutions: universities and universities of applied sciences (for research purposes)
- Political parties: up to CHF 10,300 at federal level
- Church tax: this is a separate item in the tax return, not a donation
Worked Example
Net income CHF 120,000 → 20% ceiling = CHF 24,000. Donations: CHF 5,000 to Red Cross + CHF 2,000 to WWF + CHF 500 to a local sports club = CHF 7,500 deduction. At a marginal rate of 33%: CHF 2,475 in tax savings.
How to Declare It
Keep donation receipts for amounts of CHF 100 or more. Enter the total under "Deductions > Contributions". In Avenzo, photograph the receipts — the app reads the organisation name and amount automatically.
[!info] For larger donors: spread significant amounts across multiple tax years to maximise the deduction each year. One-off donations above 20% of income are lost — there is no carry-forward provision.
9. Relocation Costs for a Job-Related Move
Potential saving: CHF 2,000–8,000 (one-off)
When a move is required by a new job, a transfer, or a company restructuring, the relocation costs are deductible as professional expenses. The move must be professionally motivated — a voluntary move within the same city does not qualify.
What Is Deductible?
- Removal company: full cost with invoice
- Self-move: rental vehicle, packing materials, mileage for helpers
- Double rent: transition period up to 3 months (if professionally justified)
- Agency fees: for the new property (if professionally motivated)
- Travel costs: for apartment viewings at the new place of work
Worked Example
Removal company CHF 3,500 + double rent 2 months at CHF 1,800 = CHF 7,100 deduction. At a marginal rate of 30%: CHF 2,130 in tax savings.
How to Declare It
Enter relocation costs under "Professional expenses > Other professional costs". Attach the removal company invoice, old and new lease agreements, and the new employment contract. The tax authority checks that the professional connection is genuine.
[!warning] Keep your employment contract showing the new employer — the tax authority can request proof that the move was professionally motivated. For a full breakdown of what to declare after a move in Switzerland, consult your cantonal tax authority's guidance.
10. Canton of Residence — The Highest Long-Term Lever
Potential saving: CHF 5,000–30,000+/year
Over the long term, living in a low-tax canton is the most significant single factor in your Swiss tax burden. The difference between the highest and lowest-taxed cantons amounts to a factor of roughly 2 — from approximately 22% in Zug to over 46% in Geneva.
Cantonal Tax Rate Comparison (Top Income Tax Rate)
| Canton | Top rate (approx.) | Tax on CHF 150,000 income |
|---|---|---|
| Zug | ~22% | CHF 18,500 |
| Nidwalden | ~23% | CHF 19,800 |
| Schwyz | ~24% | CHF 20,500 |
| Lucerne | ~31% | CHF 28,200 |
| Zürich | ~40% | CHF 38,000 |
| Bern | ~46% | CHF 42,500 |
Worked Example
Moving from Zürich to Zug on CHF 150,000 income: CHF 38,000 − CHF 18,500 = CHF 19,500 saving per year. Over 10 years: CHF 195,000 — more than enough to offset higher rents or property prices in Zug.
[!warning] The change of residence must be genuine. The tax authority examines: where do you sleep most nights? Where is your doctor, your post, your associations? Fictitious residences are prosecuted under Art. 186 DBG and can result in fines or criminal proceedings.
Also Within a Canton
Even staying within canton Zürich, you can save substantially by choosing the right municipality. The cantonal tax rate is fixed, but the municipal multiplier (Gemeindesteuerfuss) varies widely. On a taxable income of CHF 100,000 (single, no children):
| Municipality | Tax multiplier | Cantonal + municipal tax | Saving vs. City of Zürich |
|---|---|---|---|
| City of Zürich | 119% | approx. CHF 21,500 | — |
| Zollikon | 82% | approx. CHF 17,800 | approx. CHF 3,700/year |
| Kilchberg | 72% | approx. CHF 16,400 | approx. CHF 5,100/year |
A move from the city of Zürich to Kilchberg saves approximately CHF 5,100 per year at CHF 100,000 income — over five years that is over CHF 25,000. Both municipalities sit on the left shore of Lake Zürich with excellent public transport connections. Tax multipliers are for the 2024 tax year (source: FTA Swiss Tax Calculator). Current comparisons for all Zürich municipalities are available in the Steuerfuss overview for canton Zürich.
How to Do It
A cantonal move is assessed by your registered address on 31 December of the tax year. Register your new address at the residents' office (Einwohneramt) at least 2 weeks before 31 December to allow processing time in the municipal system. You then file your tax return in the new canton.
Summary: How to Save Taxes in Switzerland
Saving taxes in Switzerland is not a matter of luck — it is the result of systematic planning. The principle: the higher your marginal tax rate, the more valuable every franc of deduction is.
- Pillar 3a: contribute every year to the maximum (CHF 7258)
- Professional expenses: check commuting, home office, and continuing education — do not leave money on the table
- Collect receipts: document medical costs, donations, and property maintenance throughout the year
- BVG buy-in: if you have a contribution gap and a high marginal rate, stagger over 2–3 years
- Property costs: choose flat-rate or actual costs each year — time large renovations strategically
- Long-term: evaluate residence in a lower-tax canton (saving up to CHF 30,000+/year)
After receiving your tax assessment, you have 30 days to file a free objection in writing to the cantonal tax authority — use this window if you forgot any deductions.
The Avenzo Swiss tax calculator calculates your personal tax burden across all 26 cantons and automatically identifies all deductions that apply to your situation. At a taxable income of CHF 100,000 in Zürich (marginal rate 33%), the ten strategies combined can save CHF 8,000–15,000 per year — for families with property and childcare the saving can exceed CHF 20,000.
By Denis Smajovik, FINMA-registered Insurance Intermediary · Last reviewed: April 2026 · Updated annually in January · Sources: FTA estv.admin.ch, FSIO bsv.admin.ch, FOPH bag.admin.ch · Avenzo GmbH
This guide does not constitute individual tax advice. All information without guarantee.
Frequently Asked Questions
The saving depends on your income, canton, and personal situation. A married couple in Zürich with CHF 150,000 combined income, two children, and residential property can typically save CHF 8,000–15,000 per year using pillar 3a, commuting costs, childcare deductions, and maintenance costs. At higher incomes with a pension fund buy-in, the saving can be substantially more.
Your contribution must be credited to your pillar 3a account by 31 December of the tax year. A transfer made on 2 January counts for the following year. Bank transfers can take 1–2 business days — set up a standing order with enough lead time.
Yes. After receiving your final tax assessment, you have 30 days to lodge a formal objection — free of charge, in writing to the cantonal tax authority. Missing receipts can be submitted with the objection. For obvious errors, a revision petition is possible up to 5 years retroactively.
The three most frequently overlooked are: continuing education costs (up to CHF 12,900 — including part-time professional courses); the home-office flat-rate deduction (CHF 2,400 in many cantons, no receipts required); and medical costs above the 5% threshold (dental work, glasses, costs not covered by basic health insurance).
The flat-rate deduction (20% of the imputed rental value for buildings over 10 years old) is better in years when your actual maintenance costs are low. In years with major work — boiler replacement, roof repair, facade renovation — the actual-cost method usually wins. You can choose freely each year, so time large renovation projects strategically across two tax years.
- FTA (Federal Tax Administration) — Circular No. 18a: Tax Treatment of Pensions (Pillar 3a)
- FSIO (Federal Social Insurance Office) — Occupational Pensions (BVG) and Pillar 3: Overview
- FTA — Forms and Guides for Direct Federal Tax
- FTA — Swiss Tax Calculator: Calculate and Compare Taxes
- FOPH (Federal Office of Public Health) — Health Insurance: Premiums and Cost-Sharing
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