Pillar 3a Tax Savings Calculator: How Much Do You Really Save?
February 26, 2026
8 min read
arvy 3a Calculator
Pillar 3a Tax Savings Calculator: How Much Do You Really Save?
Calculate your 3a tax savings by canton, compare invested 3a with a savings account, and see the total effect — including the 2026 retroactive contribution rules.
In 30 seconds — what you need to know
- 2026 maximum: CHF 7,258 with a pension fund, CHF 36,288 without. Fully deductible from taxable income — the most direct form of tax saving available in Switzerland.
- Typical saving: CHF 1,500–2,700 per year depending on canton and income. Geneva highest, Zug lowest. The lever is your marginal tax rate.
- Invested vs. savings account: CHF 7,258/year × 20 years at 6% return = CHF 280,000. At 0.75% in a savings account: CHF 156,000. Difference: CHF 123,000.
- Turbo effect: Reinvesting the CHF 2,400 annual tax savings builds another CHF 88,000 over 20 years — free money that would otherwise have gone to the canton.
- New from 2026: Missed 3a contributions can be made retroactively for up to 10 years — but only for gaps from contribution year 2025 onward.
On this page
Gross salary
Your annual gross income before deductions. Determines your marginal tax rate — the higher your income, the more you save with 3a. → Budget Calculator
CHF 40,000CHF 200,000
Canton
The canton determines your marginal tax rate. Zug has the lowest (~22%), Basel-Stadt and Geneva the highest (~37%). The 3a tax savings are largest in high-tax cantons. → Glossary: Pillar 3a
Investment horizon
How many years until retirement or until you withdraw your 3a balance. The longer, the stronger the compound effect. 3a balances can be withdrawn at the earliest 5 years before AHV retirement age (exceptions: home ownership, emigration, self-employment).
5 years35 years
Expected return
The expected annual return on your 3a investment. Savings account: 0.5-1.5%. Conservative investment: 4-5%. Equity-oriented (like arvy): 6-8%. Historical stock market average: ~7% after inflation. → Compound Interest Calculator
2%10%
New from 2026: Missed 3a contributions can be made retroactively for up to 10 years — and are also fully tax-deductible.
Invest your 3a, don't park it.
With arvy, you invest your 3a in quality companies — with real people who answer your questions.
⚠ Simplified estimate. Not financial or tax advice. Tax savings vary by canton, income, marital status, and religious affiliation. Marginal rates are approximate guidelines for middle incomes. For binding calculations: ESTV Tax Calculator. arvy is a FINMA-regulated asset manager.
How the 3a Tax Saving Works
Pillar 3a is the most tax-effective instrument for individuals in Switzerland. Every franc deposited — up to a maximum of CHF 7,258 per year (2025/2026, for employees with a pension fund) — can be fully deducted from taxable income. Self-employed individuals without a pension fund may contribute up to 20% of net income, capped at CHF 36,288.
The effective tax saving depends on your marginal tax rate — the rate applied to your last earned franc. Higher earners in higher-tax cantons save more in absolute terms. At a marginal rate of 33% in Zürich (typical for higher incomes), the maximum contribution saves you approximately CHF 2,400 per year in taxes. Over 25 years, that's nearly CHF 60,000 in tax savings alone — before any compound interest on the invested capital.
Tax Savings by Canton (CHF 7,258 max contribution)
Example: single person with taxable income of CHF 100,000, no religious affiliation, cantonal capital. Values are 2026 guidelines and vary by municipality:
| Canton | Marginal rate | Annual saving | Over 25 years |
|---|---|---|---|
| Geneva | ~38% | ~CHF 2,750 | ~CHF 69,000 |
| Basel-Stadt | ~35% | ~CHF 2,550 | ~CHF 64,000 |
| Bern | ~33% | ~CHF 2,400 | ~CHF 60,000 |
| Vaud | ~32% | ~CHF 2,350 | ~CHF 59,000 |
| Zürich (city) | ~29% | ~CHF 2,100 | ~CHF 53,000 |
| Aargau | ~28% | ~CHF 2,050 | ~CHF 51,000 |
| St. Gallen | ~27% | ~CHF 2,000 | ~CHF 50,000 |
| Schwyz | ~20% | ~CHF 1,450 | ~CHF 36,000 |
| Zug | ~18% | ~CHF 1,300 | ~CHF 33,000 |
| Nidwalden | ~17% | ~CHF 1,200 | ~CHF 30,000 |
Sources: ESTV data 2026, kantonsvergleich.ch, Convit canton comparison. Values shown are guidelines for middle incomes — at higher taxable income (CHF 130,000+), marginal rates are typically 3-5 percentage points higher.
Tax Savings by Income (Example: Zürich)
How much the income lever matters — at the CHF 7,258 maximum, single, no religious affiliation, city of Zürich:
| Taxable income | Marginal rate | 3a saving/year | Over 30 years |
|---|---|---|---|
| CHF 60,000 | ~21% | ~CHF 1,520 | ~CHF 46,000 |
| CHF 80,000 | ~25% | ~CHF 1,815 | ~CHF 54,000 |
| CHF 100,000 | ~29% | ~CHF 2,100 | ~CHF 63,000 |
| CHF 130,000 | ~33% | ~CHF 2,395 | ~CHF 72,000 |
| CHF 180,000 | ~37% | ~CHF 2,685 | ~CHF 81,000 |
The income lever
Higher earners benefit proportionally more from 3a. The same CHF 7,258 contribution saves a CHF 60,000 earner in Zürich around CHF 1,500, but a CHF 180,000 earner around CHF 2,700 — the maximum is identical for everyone, but the tax saving is not. High earners should max out the contribution consistently.
Invested vs. Savings Account: The Difference Is Enormous
Many people in Switzerland have a 3a account at a bank earning 0.5–1% interest. That's better than nothing — but far from the potential. An invested 3a earning an average of 6% grows over 20 years to approximately CHF 280,000. The same deposits in a savings account at 0.75%: only about CHF 156,000. The difference of over CHF 120,000 is the price of not investing.
| Horizon | Savings (0.75%) | Invested (6%) | Difference |
|---|---|---|---|
| 10 years | CHF 75,400 | CHF 99,400 | CHF 24,000 |
| 15 years | CHF 115,200 | CHF 176,500 | CHF 61,000 |
| 20 years | CHF 156,600 | CHF 279,500 | CHF 123,000 |
| 25 years | CHF 199,600 | CHF 419,400 | CHF 220,000 |
| 30 years | CHF 244,400 | CHF 608,400 | CHF 364,000 |
CHF 7,258 per year spread across 12 monthly contributions (standing order of CHF 604.83/month). Returns are nominal before inflation. At 6% nominal, the real effect after inflation is approximately 4%.
The Turbo Effect: Reinvest Your Tax Savings
Most people spend their tax savings. Those who invest them instead get a turbo effect: the CHF 2,000–2,500 annual tax savings grow over 20 years into another CHF 80,000–100,000. That's free money — it would have gone to the canton anyway.
Concretely: with CHF 2,400 annual tax savings reinvested at 6% return, you build CHF 88,000 over 20 years, or CHF 190,000 over 30 years. Skipping this step means leaving an entire second wealth-building track on the table — without spending an extra franc from your own budget.
New from 2026: Retroactive 3a Contributions
Since 1 January 2025, the revised BVV3 ordinance allows retroactive purchases into pillar 3a. The first practical retroactive payment is possible in tax year 2026 — for contribution gaps from 2025 onward. Gaps from before 2025 are legally excluded.
The rules
1. You must have had AHV-liable earned income in the retroactive year.
2. The full ordinary maximum (CHF 7,258) must first be paid in for the current year before retroactive payment is allowed.
3. Maximum one retroactive payment per year, up to the gap amount of that year.
4. Partial fills are final — you cannot top up the remainder later.
5. Once you've withdrawn any 3a balance (retirement, home purchase, etc.), retroactive payments are no longer possible.
Concrete example: Sarah, 38, self-employed in Zürich, contributed only CHF 3,000 to her 3a in 2025 due to a project hiatus. Gap: CHF 4,258. In tax year 2026 she first pays the regular CHF 7,258, then catches up the CHF 4,258 retroactively. At a 30% marginal rate, this saves her an additional around CHF 1,277 in taxes — money that would otherwise have been lost.
Deadlines, Tips & Strategies
Contribution deadline: 31 December of the tax year (value date is what counts). Bank transfers take 1-3 business days — paying on 30 December risks the payment landing in January and counting toward the next tax year. Safe rule: pay by 20 December at the latest.
When to contribute? From a return perspective: as early in the year as possible. Paying in January instead of December means your money is invested 11 months longer. At 6% return, that's about CHF 360 extra per year on CHF 7,258. Over 30 years, that compounds to nearly CHF 30,000.
Stagger multiple accounts: Once your 3a balance reaches around CHF 50,000, it pays to open a second account. At withdrawal in retirement, balances are taxed per account separately — the progressive capital withdrawal tax hits large lump sums much harder. Five accounts of CHF 200,000 withdrawn in five different years cost significantly less in taxes than one account of CHF 1,000,000. → 3a providers compared
Married couples: Both spouses with earned income may each contribute the maximum — doubling the annual tax savings. For two earners in Zürich with CHF 130,000+ income each, we're talking CHF 4,800 tax savings per year, over a career summing to more than CHF 140,000.
Securities vs. savings: Standard 3a pension funds are legally allowed up to 50% equity exposure. Specialised providers go up to 97% equities. Over a 15+ year horizon, equity exposure is the single most important return factor.
📚 arvy Book Club
The Simple Path to Wealth — JL Collins
Collins' core thesis: "Max your tax-advantaged accounts first." In the US, those are the 401(k) and IRA — in Switzerland, pillar 3a and voluntary pension fund buy-ins. The principle is universal: consistently maxing out tax-advantaged vehicles builds more wealth over decades than any stock picker without that lever. His letters to his daughter read like a cheat code for compounding.
Frequently Asked Questions About 3a Tax Savings
How much tax do I save with pillar 3a in 2026?
At the CHF 7,258 maximum and a marginal rate of 25-35% (typical for middle to higher incomes), you save CHF 1,800–2,500 per year. High-tax cantons like Geneva, Basel-Stadt, or Bern are at the top end; low-tax cantons like Zug, Nidwalden, Schwyz at the bottom. Over 25 years, that compounds to CHF 45,000–65,000 in tax savings alone.
What is the maximum 3a contribution in 2026?
CHF 7,258 per year for employees with a pension fund (unchanged from 2025). For self-employed without a pension fund: 20% of net income, max CHF 36,288. Those earning less than the BVG entry threshold (CHF 22,680) can also use the higher limit.
Is 3a still worth it in low-tax cantons like Zug?
Yes, but for different reasons. In Zug, with CHF 100,000 income you save around CHF 1,300 in taxes per year — vs. CHF 2,750 in Geneva. But the wealth-building effect is identical everywhere: an invested 3a grows to around CHF 280,000 over 20 years regardless of where you live. In low-tax cantons, focus more on the investment strategy (equity ratio, fees) than the tax saving.
Should I contribute once in January or monthly?
From a return perspective: once in January. Paying CHF 7,258 on 5 January means your money is invested 11 months longer than a December payment. At 6% return, that's CHF 360 extra per year. Over 30 years: nearly CHF 30,000. If you can't afford the full lump sum, set up a standing order of CHF 604.85/month — still much better than not contributing at all.
What's the actual difference between invested and savings 3a?
At CHF 7,258 contribution per year over 20 years, an invested 3a (6% return) grows to around CHF 280,000. The same deposits in a savings account at 0.75% yield only around CHF 156,000. The CHF 120,000+ difference is pure compound interest. Over 30 years, the difference widens to CHF 360,000+. → Compound Interest Calculator
Should I reinvest my tax savings?
Yes. If you reinvest the CHF 2,000–2,500 annual tax savings into a savings plan instead of spending them, you build an additional CHF 80,000–100,000 over 20 years. This money would otherwise have gone to taxes. At 6% return on CHF 2,400/year, that becomes around CHF 190,000 over 30 years — free additional wealth.
What are the new 3a retroactive contribution rules from 2026?
Since 1 January 2025, the revised BVV3 ordinance allows retroactive 3a purchases for up to 10 prior contribution years. The first retroactive payment is possible in tax year 2026 — for gaps from 2025 onward. Requirements: AHV-liable earned income in the retroactive year, full ordinary maximum paid in for the current year, and no prior 3a withdrawal. Gaps from before 2025 are excluded. → 3a Withdrawal Tax Calculator
What is the 2026 deadline for 3a contributions?
31 December 2026, value date applies (date credited to the 3a account). Bank transfers take 1-3 business days. Pay by 20 December at the latest to avoid the payment slipping into the next tax year.
When does it make sense to have multiple 3a accounts?
Once your total balance reaches around CHF 50,000. At withdrawal, balances are taxed per account separately (progressive capital withdrawal tax). Five accounts of CHF 100,000 withdrawn over five years typically save CHF 15,000–25,000 in taxes compared to one account of CHF 500,000. Already-deposited amounts can't be retroactively split — accounts must be opened in time.
Are 3a securities funds better than 3a savings accounts?
Long-term, almost always yes. Over 15+ years, equity exposure is the biggest return driver. At 6% average return (equity funds) instead of 0.75% (savings account), your balance grows to CHF 280,000 instead of CHF 156,000 over 20 years — that's 80% more wealth from the exact same contributions. The risk: equities fluctuate. Over a 10+ year horizon, that's statistically not a risk but a prerequisite for higher returns.
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