Invest Pillar 3a with little money: are CHF 50 a month worth it?

1. Can I invest in Pillar 3a with little money?

Yes. There is no legal limit downwards; upwards, Pillar 3a caps your contribution at the maximum amount of CHF 7'258 a year. How low you can start is decided by your provider alone:

• Pension apps: no minimum deposit, or entry from CHF 1.
• Banks: the 3a account without a minimum deposit, for securities solutions some institutions require one.
• Insurers: a minimum premium per month.

What decides your retirement capital, however, is not only the size of your contribution but also the time it has to work. That time cannot be bought back later: anyone starting at 35 instead of 25 has to pay in around 70 percent more a month, at the same return, to reach the same capital by retirement.

CHF 100 a month is a good CHF 3 a day, less than a coffee. In a securities solution that turns into retirement capital of around CHF 69'000 over 30 years at an assumed 4 percent return.

More on the size of your contribution

Pillar 3a: how much should I contribute?

Between the minimum deposit and the maximum amount lies plenty of room. Compando shows which figure suits your budget and your income.

2. Are CHF 50 or CHF 100 a month enough for Pillar 3a?

Yes. They even bring more than the contribution suggests. CHF 50 a month produce around CHF 34'700 after 30 years, almost double the CHF 18'000 paid in. The overview calculates with 4 percent return a year after fees:

The third decade brings more than twice as much as the first, although you pay in the same amount. That is the work of the compound interest effect: every year it acts on a larger capital.

A second advantage comes on top. Because you transfer the same amount every month, you automatically buy more fund units at low prices and fewer at high ones. This cost-average effect smooths your entry price, especially in turbulent market phases. It does not guarantee a higher return.

Example calculation: a 25-year-old nurse from Lucerne pays CHF 50 a month, for 40 years until retirement. At 4 percent return she arrives at around CHF 59'000. A colleague who only starts at 35 would have to put up CHF 85 a month for the same result. How high the return turns out in the end is decided by your investment strategy.

What retirement capital grows out of your own contribution and investment period is shown by the wealth calculator.

3. Pillar 3a with small amounts: which mistakes to avoid?

Three mistakes cost the most with small contributions:

• Paying in without a reserve. As a rule of thumb, three to six months of expenses on a freely available account. Pillar 3a stays locked until retirement and is not available for emergencies.
• Saving alongside consumer debt. The interest on credit cards and small loans lies above any realistic return. Anyone who leaves it standing and contributes at the same time loses money.
• Overlooking the transaction fee. Some banks charge a fee on every purchase, on top of the custody and fund fees. Many digital pension apps do without it.

The third mistake is the quietest one, because the fee sits in the fine print. It bites on every single contribution, before your money is even invested. Anyone contributing monthly pays it twelve times a year. Whether a provider charges it is set out in its fee schedule.

Without these three mistakes, the entry pays off from CHF 50 a month, provided your investment horizon is at least 10 years. It runs most reliably by standing order: decide once, and it takes care of itself from then on.

4. Conclusion: is Pillar 3a worth it with little money?

Yes. Even CHF 50 a month builds noticeable retirement capital over ten years and more. More important than the size of your contribution is that it arrives every month.

On top of that comes a second return, easily missed with small amounts: the tax saving. Every contribution lowers your taxable income. At CHF 100 a month and a marginal tax rate of 20 percent, the tax deduction brings back around CHF 240 a year.

Pay that money in the following year as well, instead of spending it:

• CHF 1'200 a year turn into CHF 1'440. A fifth more, without you putting up a single extra franc.
• The higher contribution lowers your taxes again the next year. The effect repeats itself year after year.

The higher your marginal tax rate, the more comes back. Compound interest works regardless of what you earn.

This article was first published on 05/05/2026