3a in Switzerland 2026: what a contribution really costs
Paying into a private or workplace pension in Switzerland usually lowers your tax and sometimes your social-security contributions, so each unit you put in costs you less than it adds to the plan. The calculator above works this out for your salary. Below you will find this year’s effect on your pay, the tax rules and how the plan compares with saving the money yourself.
This year: salary without and with the plan
| Without plan (CHF) | With plan (CHF) | |
|---|---|---|
| Gross / year (incl. bonus) | 96,000 | 96,000 |
| Social security | −10,317 | −10,317 |
| Your contribution | – | −6,720 |
| Income tax | −10,872 | −9,286 |
| Take-home / year | 74,811 | 69,677 |
| Employer contribution | – | +0 |
| Into the plan (you + employer) | – | 6,720 |
| Total received / year (take-home + plan) | 74,811 | 76,397 |
In the example, your net pay is CHF 5,806.42 a month with the plan: CHF 427.80 less than without it (CHF 6,234.22) · tax & contributions saved cover 23.6%. You save CHF 1,586 a year (tax + social security), so each unit you pay in costs you CHF 0.76. The balance could reach CHF 183,277 (you CHF 134,400 · employer CHF 0 · return CHF 48,877); at payout that is about CHF 170,448 net (after 7.0% tax & charges).
Tax treatment
Pillar 3a (bank account or securities): contributions are tax-deductible, returns are tax-free and the withdrawal is taxed separately at a reduced rate (about 7% used here; it depends on the canton and amount). Interest on ordinary savings is taxed as income (25% used) and 35% withholding tax is deducted and refunded through the tax return. Pillar 3a contributions are deductible from taxable income up to CHF 7,258 a year in 2026 if you are in a pension fund (20% of income, at most CHF 36,288, without one). The money is locked until five years before the reference age (or for buying a home or starting a business) and taxed separately at a reduced rate when withdrawn.
The plan or saving it yourself?
- Total that left your take-home pay: CHF 102,673
- Plan balance: CHF 183,277
- Plan, net to you: CHF 170,448
- Saving yourself, net: CHF 129,326
- Advantage of the plan: +CHF 41,123
Contributions of CHF 6,720 exceed the limit by CHF 0; the excess gets no relief.
Frequently asked questions
Is it worth paying into 3a in Switzerland?
In the example, the plan leaves you +CHF 41,123 better off than saving the same money yourself, mainly because of the tax relief and any employer contribution. Returns are not guaranteed.
How much tax do I save?
In the example, CHF 1,586 this year (tax + social security). Each unit you pay in costs you CHF 0.76 out of your take-home pay.
What happens at payout?
In the example you would receive about CHF 170,448 (after 7.0% tax & charges). Payout rules and taxes are listed in the tax section above.
Which return does the calculator assume?
The return is your own assumption in the calculator, not a forecast. Investments can lose value; try more than one value.
Rules and official sources: see “Rules applied (2026)” above. Last checked: October 2026. The amounts are estimates for information, not financial or legal advice.