Pillar 3a and taxes: how to use every advantage
Pillar 3a combines retirement provision with tax advantages: you save for old age and lower your taxes at the same time. Compando shows how to make full use of the tax advantages of restricted pension provision and how much is possible per year.
1. What tax advantages does Pillar 3a offer?
Private provision in Pillar 3a brings several tax advantages:
- You can deduct your contributions from taxable income.
- No wealth tax is due on the pension balance.
- Interest and capital gains remain exempt from income and withholding tax.
- The withdrawal is taxed separately from the rest of your income and at a lower rate.
2. How much tax can I save with Pillar 3a?
Contributions to Pillar 3a can be deducted from income tax. At the full maximum contribution of CHF 7'258, the annual tax saving is usually between CHF 1'000 and CHF 2'500, determined by income and canton of residence.
At a taxable income of CHF 80'000, a single person with the full contribution saves around CHF 1'800 in a high-tax canton and about CHF 1'100 in a low-tax canton. Married couples with two incomes deduct double the amount and save accordingly more. The personal tax saving can be recalculated with a simple formula.
Even smaller contributions are worthwhile: those who do not use the full maximum still save proportionally. Which contribution amount fits your budget is up to you; a standing order spreads the amount conveniently over the year.
Pillar 3a tax calculator
How much a contribution to Pillar 3a saves in taxes is easy to work out: the calculator compares your tax costs without the deduction against the costs with it, at the amount that suits you.
3. What must I bear in mind for the tax deduction?
For Pillar 3a to deliver the tax deduction, two conditions must be met:
- Income subject to AHV: Only those with earned income subject to AHV may contribute and deduct the amount.
- Maximum contribution: An annual cap applies. For employees with a pension fund it is CHF 7'258 in 2026; for self-employed people without a pension fund it is up to 20 percent of income, at most CHF 36'288.
Deadlines and retroactive contributions
For the deduction to count for the current year, the amount must be credited to the provider by 31 December. Since 2026, missing contributions can also be paid retroactively under certain conditions; this does not apply to gaps before 2025.
4. How can I deduct the Pillar 3a contribution from taxes?
You do not receive the tax deduction automatically: the contribution must be entered in the tax return. In the main form, you enter the amount paid in under deductions, usually as «Pillar 3a contributions».
This includes the certificate from the pension foundation confirming the contributions paid. Without this proof, the tax administration does not recognise the deduction. Your 3a provider issues the certificate once a year, usually in January for the previous year.
5. Withdrawing Pillar 3a: which taxes apply?
On withdrawal, the ordinary income tax does not apply, but rather the much lower capital withdrawal tax. It is levied separately from the rest of your income and usually lies between 4 and 9 percent of the capital withdrawn; the exact level is determined by canton and withdrawal amount.
Because this tax rises with the size of the withdrawal, spreading it across several accounts lowers the burden: those who withdraw their balance staggered over several years pay a lower rate per tranche. Note that a simultaneous capital withdrawal from the pension fund is added to the 3a withdrawal and increases the progression. Plan larger withdrawals over several years for this reason.
How much of the overall tax advantage remains in the end also depends on the provider: low fees and a suitable investment strategy raise the net return over the years. The direct provider comparison shows the differences.
