Pillar 3a
How Switzerland's tax-advantaged private pension works: who can pay in, the annual contribution cap, the tax deduction, and when you can withdraw.
Key idea
Pillar 3a is a voluntary, tax-privileged retirement account. Every franc you pay in comes straight off your taxable income, and the money grows shielded from income and wealth tax until you withdraw it. The trade-off: it's locked away until retirement, with few exceptions.
What it is
Switzerland's retirement system rests on three pillars: the state pension (AHV/IV), the occupational pension from your employer (BVG), and private provision, the third pillar. Pillar 3a is the tied part of that third pillar: a dedicated account you fund yourself, in exchange for generous tax treatment. Because it's tied, the money is committed to retirement and can't be dipped into freely.
How much you can pay in
The annual cap depends on whether you already have an occupational pension (2nd pillar):
With a pension fund
CHF 7,258
Most employees. A fixed yearly maximum.
Without a pension fund
CHF 36,288
Self-employed with no 2nd pillar: up to 20% of earned income, capped at this amount.
You generally need income subject to AHV contributions to pay in at all. Anything above the cap isn't deductible, so there's little reason to overshoot it.
Why it pays off
The tax advantage works at three separate points:
- 1
Going in
The full contribution comes off your taxable income. At a ~30% marginal rate, paying in 7,258 saves roughly 2,200 in tax.
- 2
While invested
The balance is exempt from wealth tax, and interest and gains aren't taxed as income for the life of the account.
- 3
Coming out
The payout is taxed once, separately from other income, at a reduced rate, not at your normal marginal rate.
When you can withdraw
3a money is normally locked until roughly five years before the ordinary AHV retirement age. There are a handful of early-withdrawal exceptions: buying a home you live in, becoming self-employed, permanently leaving Switzerland, or buying into your pension fund.
Because the payout is taxed as a lump sum, taking everything in one year can push it into a higher bracket. Spreading savings across several 3a accounts and closing them in different years keeps each payout and its tax, smaller. A common rule of thumb: once one account passes about CHF 50,000, a second account starts to make sense.
New: retroactive top-ups
Since 2026 you can close past contribution gaps. If you didn't pay the maximum in an earlier year, you can make it up later, for gaps going back up to ten years, starting from the 2025 tax year. Two conditions: you must pay the current year's full amount first, and each catch-up payment is capped at the "small" 3a maximum. Top-ups are fully deductible, just like regular contributions.
Figures change yearly
The caps shown here are the 2026 amounts, set by the Federal Council and revised periodically. Marginal tax rates and the exact saving vary by canton, municipality, income and marital status. Check the current figures before acting.
Key takeaways
- —Contributions come straight off your taxable income, so the deduction is immediate and certain.
- —The account also escapes wealth tax and grows untaxed until you withdraw.
- —The money is tied until near retirement, with only a few early-withdrawal exceptions.
- —Spreading savings across several accounts and withdrawing in stages keeps the payout tax low.