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Pillar 3a Retroactive Contributions 2026: Make Up Missed Payments — The Complete Guide

By Thierry Borgeat, CFA & Co-Founder · Last updated: March 2026 · 8 min read

Starting January 1, 2026, something fundamental has changed for private retirement savings in Switzerland: you can now retroactively make up missed Pillar 3a contributions. If you didn't pay the maximum amount in previous years, you can close those gaps — and claim the tax deduction retroactively.

This change potentially affects millions of workers in Switzerland. But the rules are complex, the deadlines are tight, and the pitfalls are real. This guide explains everything you need to know: who qualifies, how it works, what it's worth — and what you absolutely must not get wrong.

What is the 3a catch-up contribution?

Until now, a simple rule applied in Switzerland: if you didn't use up the maximum Pillar 3a contribution in a given year, that allowance was lost forever. If you paid CHF 3,000 instead of the maximum CHF 7,056 in 2023, the missing CHF 4,056 could never be recovered. That gap was gone for good.

This has fundamentally changed. The Federal Council decided that workers can now retroactively make up missed Pillar 3a contributions starting in 2026. The regulation allows you to close contribution gaps from the past 10 years and fully deduct the catch-up amount from your taxable income.

This is one of the biggest changes to the Swiss pension system since Pillar 3a was introduced in 1987. For many people — especially part-time workers, self-employed professionals in their early years, and anyone who started saving late — this opens up entirely new possibilities.

Who can make retroactive payments?

Retroactive contributions are available to all workers who are subject to Swiss AHV (social security). But there are clear conditions that must all be met simultaneously:

You can make a catch-up payment if: you had AHV-liable income in Switzerland in the gap year (the year you're catching up for), you are also employed and AHV-liable in the year you make the payment, you first pay the full regular maximum amount for the current year, and the gap is no more than 10 years old.

Who benefits the most:

Part-time workers and parents: Anyone who reduced their working hours for childcare and couldn't pay the full 3a amount can now close these gaps. Women, who statistically work part-time more often, benefit disproportionately. More on this: What 5 years without a pension fund really cost.

Career starters: If you started working at 25 but only began contributing to your 3a at 30, you have 5 years of gaps. From 2031 onwards (once those missed years from 2025 or later become eligible), these can be made up.

Self-employed in their early years: Anyone who earned little in the first years of self-employment and made no or low 3a contributions can retroactively fill those gaps.

Expats returning to Switzerland: If you lived abroad for several years and only became AHV-liable again after returning, you may benefit — but only if you had Swiss AHV income in the gap year.

The 5 conditions in detail

Condition 1: AHV-liable income in the gap year

You must have earned AHV-liable income in Switzerland in the year you want to catch up for. No income, no eligibility. This excludes pure sabbaticals or years abroad without Swiss AHV affiliation. Important: unemployment benefits also count as AHV-liable income.

Condition 2: AHV-liable income in the payment year

You must also be employed and AHV-liable in the year you make the catch-up payment. People who are already retired cannot make retroactive payments.

Condition 3: Regular maximum first

You must first pay the full regular maximum amount (2026: CHF 7,258) in the payment year before you can make a catch-up contribution on top. The catch-up is in addition — not instead.

Condition 4: Only the shortfall amount

You can only catch up the amount you did not pay in the gap year. If you paid CHF 5,000 out of a possible CHF 7,258 in 2025, you can catch up a maximum of CHF 2,258. If you paid nothing in 2025, you can catch up the full maximum of that year.

Condition 5: Maximum 10-year lookback

The gap may not be more than 10 years old. From 2026, you can catch up gaps from 2025. From 2035, you can look back all the way to 2025. Older gaps (before 2025) are permanently lost.

Worked example: What's the catch-up actually worth?

Let's take a concrete scenario: Sarah, 35, works in Zurich, earns CHF 95,000 gross. In 2025, she only paid CHF 3,000 into her Pillar 3a instead of the possible CHF 7,258. Her gap is CHF 4,258.

Without catch-up: In 2026, Sarah has only the regular maximum of CHF 7,258 as a tax deduction. At a marginal tax rate of around 35% (Canton Zurich, City of Zurich), she saves approximately CHF 2,540 in taxes.

With catch-up: Sarah first pays the regular maximum of CHF 7,258 for 2026, then an additional CHF 4,258 as a catch-up for 2025. Her total tax deduction is CHF 11,516. At 35% marginal rate, she saves approximately CHF 4,031 — that's CHF 1,490 more than without the catch-up.

The money isn't lost — it sits in Sarah's 3a account growing until retirement. If she invests it rather than leaving it in a savings account, she also benefits from compounding. At 6% average return over 30 years, CHF 4,258 grows to approximately CHF 24,400.

Calculate your personal tax savings with our Pillar 3a Tax Savings Calculator.

Optimal strategy: How to maximise the benefit

Strategy 1: Track gaps every year

From now on, document each year how much you contributed to your 3a and what the maximum was. That difference is your catch-up potential. Keep the payment receipts — your 3a provider can give you an annual statement, but the responsibility is yours.

Strategy 2: Always prioritise the regular contribution

The catch-up is a bonus, not a replacement. Pay the full maximum every year if you can afford it. The catch-up only comes on top and requires the regular amount to be paid in full first.

Strategy 3: Make catch-ups in high-income years

The tax effect depends on your marginal tax rate in the year you make the catch-up. If you know you'll receive a bonus or salary increase in 2027, it may make sense to defer the catch-up for 2025 to 2027 — because the higher marginal rate yields a larger saving. You have up to 10 years.

Strategy 4: Invest the catch-up amount, don't leave it in a savings account

Catch-up contributions should not sit in a 3a savings account at 0.5% interest. Invest them in a 3a solution with a high equity allocation — especially if you still have 20+ years until retirement. The difference between a savings account and invested 3a over 30 years can be hundreds of thousands of francs. More: Pillar 3a: Bank, insurance or app?

Strategy 5: Multiple 3a accounts for staggered withdrawal

If catch-up contributions build up large 3a balances, consider opening multiple 3a accounts. The reason: withdrawals are taxed at a reduced rate, but the rate increases with the amount (progression). Staggered withdrawal over several years and accounts can significantly reduce your tax burden at retirement.

The 4 most common mistakes

Mistake 1: Catch-up without the regular contribution

You cannot make a catch-up payment unless you've first paid the full regular maximum in the same year. If you only contribute CHF 5,000 as the regular payment in 2026 and then try to add CHF 4,258 as a catch-up for 2025, it will be rejected. Full regular payment first (CHF 7,258), then the catch-up.

Mistake 2: Wrong account designation

The catch-up must be clearly declared as such — to a separate or correctly designated catch-up account. The details vary by 3a provider. Check with your provider how the catch-up is technically processed before you transfer money.

Mistake 3: Thinking you can close old gaps

Once more: only gaps from contribution year 2025 onwards can be made up. The years 2015–2024 are permanently lost. Don't be misled by incorrect information on social media.

Mistake 4: Leaving the catch-up in a savings account

CHF 7,258 in a 3a savings account at 0.5% interest becomes approximately CHF 8,400 after 30 years. Invested at 6% return, it becomes approximately CHF 41,700. The difference of CHF 33,300 comes purely from choosing to invest rather than save. Invest your 3a — this applies to regular contributions and catch-ups alike.

Step by step: How to make a catch-up payment

Step 1: Check your eligibility. Did you have AHV-liable income in Switzerland in 2025? Did you contribute less than the maximum (CHF 7,258) to your Pillar 3a in 2025? Are you employed in 2026? If yes: you're eligible.

Step 2: Calculate your gap. Maximum amount 2025 (CHF 7,258) minus your actual 2025 contribution = your catch-up potential. Get the receipt from your 3a provider.

Step 3: Pay the regular 2026 amount first. Transfer CHF 7,258 as your regular 3a contribution for 2026. Best to set up a standing order of CHF 605 per month.

Step 4: Make the catch-up payment. Contact your 3a provider for the correct process. The catch-up is declared separately and can be claimed as an additional tax deduction.

Step 5: Declare in your tax return. Report both the regular contribution and the catch-up in your tax return. Both are fully deductible from taxable income.

Frequently asked questions

Conclusion: A historic opportunity — if you use it right

The 3a catch-up is the biggest improvement to the Swiss pension system in decades. But it's not automatic — you need to act, understand the rules, and plan strategically.

The key points: from 2026, you can make up gaps from contribution year 2025 onwards. You must pay the regular maximum first. The catch-up is fully tax-deductible. Invest the catch-up amount rather than leaving it in a savings account.

The best retirement saving is the one you actually do. The second best: the one you catch up on.

With arvy, you can invest your Pillar 3a in quality companies — with a savings plan starting from CHF 1/month. Our founders invest their own money in the same portfolio. FINMA-regulated, transparent, with weekly investment education.

More calculators and articles: 3a Tax Savings Calculator → · Pillar 3a: Bank, insurance or app? → · Pension Gap Calculator → · Pension vs Lump Sum Calculator → · Investing Switzerland Guide →

This article was written by Thierry Borgeat, CFA, and reviewed by Patrick Rissi, CFA. Last updated March 2026.

Disclaimer: This article is for general information purposes and does not constitute personal tax or investment advice. The legal provisions for 3a catch-up contributions may change. Consult a tax advisor for questions about your specific situation. arvy is a FINMA-supervised asset manager. Imprint & Legal Information