The 10 most effective tax deductions in Switzerland 2026 (excluding pillar 3a)

Many Swiss taxpayers pay more tax than they should. Not because their income is too high, but because the deductions they are entitled to remain unknown or poorly claimed. Pillar 3a is well known; the nine other items on this list are far less so, and often amount to more.

The 10 deductions at a glance

Conditions, amounts and special cases for each federal deduction 2026

1. Commuting costs between home and workplace Public transport actual · CHF 3'000 max (car)

For public transport, actual costs are fully deductible: annual GA pass, half-fare card with tickets, monthly subscription. For a private car, the deduction has been capped at CHF 3'000 per year under the federal income tax since 2023 (FTA, 2026), at CHF 0.70 per kilometre up to this maximum. Many cantons apply more generous rules without a cap, particularly for taxpayers without reasonable public transport access. Example: SBB General Abonnement 2026 at CHF 3'860 gives CHF 3'000 deductible at the federal level, often the full amount at the cantonal level. Parking fees at the workplace are generally not deductible under this heading.

2. Meal expenses away from home CHF 3'200/year

A flat rate of CHF 15 per working day applies when you cannot return home for lunch and no accessible canteen is available at your workplace. The annual maximum is CHF 3'200 (FTA, 2026), equivalent to approximately 215 days. No receipt is required for the flat rate. If a canteen charges more than CHF 15, the difference is deductible.

Remote work: The flat rate does not apply to days worked from home. For mixed schedules, only days actually worked outside the home qualify. Employees working entirely remotely cannot claim this deduction at all.

3. Professional training and development CHF 12'900/year

Course fees, enrolment costs, textbooks, travel to courses and accommodation when necessary: up to CHF 12'900 per year (FTA, 2026), including certificate programmes. The key condition is that the training maintains or develops your qualifications in your current field or a closely related professional area. The portion of costs not reimbursed by your employer remains deductible, a point frequently overlooked: if you pay CHF 5'000 and your employer reimburses CHF 2'000, the remaining CHF 3'000 is deductible under federal tax. A complete retraining into an unrelated field is treated as private expenditure and is not admitted. Cantons may apply different caps or slightly broader definitions of deductible training.

4. External childcare costs CHF 25'500/child/year

Daycare, nursery, after-school care, registered childminder, declared babysitter: up to CHF 25'500 per child under 14 and per year under the federal income tax (OPP3, 2026). Both parents, or the sole parent in a single-parent household, must be in paid employment for the deduction to be admitted. In Swiss cities, a full-time daycare place commonly costs CHF 1'500 to CHF 2'500 per month, or CHF 18'000 to CHF 30'000 per year per child, making this one of the most significant deductions on the list for urban families. Informal unpaid care by grandparents or neighbours is not admitted. Cantons apply similar or slightly more generous rules.

5. Health, accident and life insurance premiums CHF 1'700 to CHF 3'400

The federal income tax provides a flat-rate deduction for health, accident and life insurance premiums. For BVG-enrolled employees, the 2026 amounts are CHF 1'700 for a single person, CHF 3'400 for a married couple, plus CHF 700 per minor child (FTA, 2026). If actual premiums paid are lower than the flat rate, only the amounts effectively paid are deductible. Cantonal premium subsidies received reduce the admissible amount.

Self-employed without a 2nd pillar: the flat rate doubles to CHF 3'400 (single) or CHF 6'800 (couple). Cantonal rules often differ significantly from federal law.

6. Passive interest on mortgages and other debts Investment income + CHF 50'000

Interest on debts, primarily mortgage interest but also Lombard loans and other private borrowings, is deductible up to investment income plus CHF 50'000. "Investment income" here means dividends, savings interest and rental income received: if you have none of these, the practical cap is simply CHF 50'000 of deductible interest per year. For a property owner with a CHF 600'000 mortgage at 1.7%, this represents CHF 10'200 in fully deductible annual interest. This deduction is particularly significant for property owners, since the federal income tax levies the imputed rental value as income: mortgage interest is the primary deductible counterpart. Capital repayments are not interest and are not deductible under this heading.

7. Property maintenance costs 10% or 20% of imputed rental value

Property owners only. Each year you may freely choose between two methods:

• Actual costs: invoices for renovation or maintenance work, administration fees, building insurance premiums (receipts required)
• Flat rate: 10% of the imputed rental value for properties under 10 years old, 20% for older properties (no receipts required)

For an imputed rental value of CHF 18'000 and a property over 15 years old, the flat rate gives CHF 3'600 without any receipts to file. In years with major renovation work, actual costs frequently exceed the flat rate and it is worth documenting them. You may switch between methods from one year to the next. Only maintenance and value-preserving work is admitted, not improvements or construction.

8. Voluntary BVG pension fund buyback Full amount · no upper cap

If your pension fund certificate shows a contribution gap, a voluntary buyback is fully deductible from taxable income, with no upper cap (BVG, art. 79b). A gap of CHF 60'000 allows a deduction of CHF 60'000, which can be spread over several fiscal years. Gaps arise from periods abroad, extended part-time work, a significant salary increase mid-career, or a late entry into occupational pension provision. This is one of the rare uncapped deductions in Swiss tax law, making it a particularly powerful tool for higher earners.

9. Medical and dental expenses Exceeding 5% of net income

These costs are deductible only for the portion exceeding 5% of net income (FTA, 2026). With a net income of CHF 80'000, the threshold is CHF 4'000: if you have CHF 7'000 in unreimbursed costs, only CHF 3'000 is deductible.

• Admitted: unreimbursed doctor's fees, dental costs, prescription glasses or contact lenses, physiotherapy on referral, recognised spa treatments, transport for medical treatment
• Not admitted: non-prescription pharmacy products, gym memberships, alternative medicine without a medical prescription, cosmetic procedures without medical indication

This deduction is most relevant for people with significant costs related to a chronic condition, extensive dental treatment, or dependence on home care.

10. Donations to recognised charitable organisations CHF 100 to 20% of net income

Donations to tax-exempt public benefit organisations are deductible under federal income tax between a minimum of CHF 100 and a maximum of 20% of net income (FTA, 2026). The FTA publishes and updates the official list of recognised organisations on its website (estv.admin.ch): if the organisation is not listed, the donation is not deductible under federal tax, even if it is broadly considered a public benefit organisation. Foreign organisations are generally not admitted. Membership contributions to political parties are not deductible under federal income tax, unlike certain cantonal rules that allow this within defined limits. To be admitted, the donation must be definitive and must not give rise to any consideration in return.

Pillar 3a: the deduction missing from this table

Two typical profiles: what it actually changes

These estimates assume every applicable deduction is actually claimed. Profile B cumulates two children's childcare (~CHF 28'000), mortgage interest (~CHF 9'500), the maintenance flat rate (~CHF 3'600) and family insurance premiums (~CHF 4'800), on top of standard professional expense deductions. These figures are indicative estimates and vary significantly by canton, municipality and personal situation.

Frequently asked questions on Swiss tax deductions

Which is the most valuable tax deduction in Switzerland excluding pillar 3a?

It depends on your profile. For parents with children in daycare or nursery, external childcare (up to CHF 25'500 per child and per year under federal tax) is often the most significant. For employees with a pension fund gap, a voluntary buyback can exceed all other deductions combined, since it is uncapped and fully deductible. Both can be combined in the same tax year.

Can training costs be deducted if the employer does not reimburse them?

Yes. Only the portion actually reimbursed by the employer cannot be deducted. If you pay CHF 5'000 in training costs and your employer reimburses CHF 2'000, the remaining CHF 3'000 is deductible under federal tax, within the annual limit of CHF 12'900. This rule applies equally to work-based courses and CAS or MAS programmes.

Is childcare provided by grandparents deductible?

No, unless grandparents provide the care on a professional basis with a formal, declared invoice. Informal unpaid or undeclared care is not admitted. The requirement is that care is entrusted to a paid third party: daycare centre, nursery, after-school programme, declared babysitter or approved childminder.

Do the self-employed get the same tax deductions as employees?

On most items, yes. But self-employed people without a 2nd pillar benefit from two significant additional advantages: the insurance flat rate doubles (CHF 3'400 instead of CHF 1'700 for a single person), and they can contribute up to CHF 36'288 per year to pillar 3a, versus CHF 7'258 for employees (FSIO, 2026).

Can you make a BVG buyback if you retire in fewer than 3 years?

Technically yes, but if you withdraw your BVG capital as a lump sum within 3 years, the FTA will reclaim and tax the bought-back amount as if it had never been deducted. This rule does not apply if you take a pension rather than a capital withdrawal. Retirement planning must therefore factor in the chosen benefit form from now on.

Does the meal flat rate apply if I work partly from home?

The CHF 15 per day flat rate applies only to days actually worked outside the home. For a mixed schedule at 60% on-site over 220 working days per year, that is 132 days × CHF 15 = CHF 1'980, well below the CHF 3'200 cap. Remote working days generate no deduction under this heading, even if you pay rent or a mortgage for your home.

How do you check whether an organisation qualifies for the donation deduction?

The FTA publishes and updates the list of tax-exempt organisations on its official website (estv.admin.ch, under "Tax exemption"). If the organisation is not listed, the donation is not deductible under federal tax, even if it is broadly regarded as a public benefit organisation. The check is free and takes under two minutes.