Most Swiss residents have exactly one pillar 3a account. That's a mistake that can cost you CHF 5,000 to CHF 12,000 in unnecessary taxes when you retire. The fix is simple: open multiple accounts and withdraw them in different years. Here's exactly how many you need and when to start.
How Many 3a Accounts Can You Have in Switzerland?
There is no legal maximum on the number of pillar 3a accounts you can hold. Swiss law does not restrict how many accounts you open, where you open them, or how you split your contributions across them.
The only rule: your total annual contributions across all accounts cannot exceed CHF 7,258 (or CHF 36,288 if you're self-employed without a pension fund). Whether you put that into one account or five, the tax deduction is the same.
Most providers limit you to five accounts per institution. But you can open accounts at multiple providers. If you want eight accounts, open five at one provider and three at another. Nobody will stop you.
According to the Swiss federal government's 3rd pillar information, the pillar 3a framework sets contribution limits but not account limits. Tax authorities in most cantons accept any reasonable number of accounts.
Why Multiple 3a Accounts Save You Money
The reason to have multiple accounts is simple: you must withdraw each 3a account in full. You cannot make partial withdrawals (except for property purchases). And Switzerland taxes capital withdrawals on a progressive scale, meaning the more you withdraw in a single year, the higher the tax rate.
This is called the "staggered withdrawal" strategy (gestaffelte Auszahlung). Instead of withdrawing CHF 250,000 from one account in a single year, you withdraw CHF 50,000 from five different accounts across five different years. The tax savings are dramatic.
Concrete example: Zurich, single, non-religious
Let's say you have CHF 250,000 in total 3a savings at retirement:
| Withdrawal strategy | Capital withdrawal tax | Tax savings |
|---|---|---|
| One account, CHF 250,000 in one year | ~CHF 18,900 | Baseline |
| Two accounts, CHF 125,000 each over 2 years | ~CHF 15,200 | ~CHF 3,700 |
| Five accounts, CHF 50,000 each over 5 years | ~CHF 10,800 | ~CHF 8,100 |
Five accounts save you over CHF 8,000 compared to one account. That's a significant amount, and it requires zero additional investment skill. Just planning.
The exact savings depend on your canton. In high-progression cantons like Neuchatel or Basel-Stadt, the savings can exceed CHF 12,000. In flat-progression cantons like Schwyz or Zug, the difference is smaller. Check our cantonal tax guide for your specific situation.
How Many 3a Accounts Are Optimal?
The optimal number depends on your situation, but here's a practical framework.
Single Person
Recommended: 4 to 5 accounts
You can start withdrawing 3a accounts up to 5 years before the official retirement age (currently 65 for both men and women). That gives you 6 tax years for withdrawals: ages 60 through 65.
But remember: if you also plan to withdraw your 2nd pillar (pension fund) as a lump sum, that withdrawal gets added to your 3a withdrawal in the same tax year. So you want to reserve one year exclusively for the 2nd pillar withdrawal.
That leaves 5 years for 3a withdrawals, making 5 accounts the sweet spot for most single people.
Married Couple
Recommended: 2 to 3 accounts per person
For married couples and registered partnerships, capital withdrawals in the same year are combined for tax purposes. If both partners withdraw a 3a account in 2030, both amounts are added together and taxed at the combined rate.
The strategy: coordinate so that only one partner withdraws per year. If you both have 5 years of withdrawal window, you effectively get 10 years of staggered withdrawals as a couple.
In practice, 2 to 3 accounts per person works well for most married couples. That gives you enough accounts to spread across the available years without overlapping with your partner.
If there's a significant age gap (5+ years) between partners, you may have more withdrawal years available, making more accounts worthwhile.
Recommended: 4 to 5 accounts
You can start withdrawing 3a accounts up to 5 years before the official retirement age (currently 65 for both men and women). That gives you 6 tax years for withdrawals: ages 60 through 65.
But remember: if you also plan to withdraw your 2nd pillar (pension fund) as a lump sum, that withdrawal gets added to your 3a withdrawal in the same tax year. So you want to reserve one year exclusively for the 2nd pillar withdrawal.
That leaves 5 years for 3a withdrawals, making 5 accounts the sweet spot for most single people.
Recommended: 2 to 3 accounts per person
For married couples and registered partnerships, capital withdrawals in the same year are combined for tax purposes. If both partners withdraw a 3a account in 2030, both amounts are added together and taxed at the combined rate.
The strategy: coordinate so that only one partner withdraws per year. If you both have 5 years of withdrawal window, you effectively get 10 years of staggered withdrawals as a couple.
In practice, 2 to 3 accounts per person works well for most married couples. That gives you enough accounts to spread across the available years without overlapping with your partner.
If there's a significant age gap (5+ years) between partners, you may have more withdrawal years available, making more accounts worthwhile.
When Should You Start Splitting Your 3a?
The earlier you start, the better. Here's a practical timeline.
If you're just starting your career or haven't opened a 3a yet, start with a single account. Focus on contributing the full CHF 7,258 each year. A low-cost investment-based provider like finpension, VIAC, or frankly gives you the best long-term returns.
The commonly cited rule is to open a new account once you have CHF 50,000 in the first one. This works as a general guideline. In cantons with steep progression (Basel-Stadt, Neuchatel, Vaud), consider splitting earlier at CHF 30,000 to CHF 40,000.
From this point, split your annual contribution between accounts. For example, put CHF 3,600 in account 1 and CHF 3,658 in account 2.
Continue opening new accounts as each one reaches the CHF 40,000 to 50,000 threshold. By age 45 to 50, most people who've been maxing out contributions should have 3 to 5 accounts with roughly equal balances.
At this point, focus on growing existing accounts rather than splitting further. You want each account to have a meaningful balance by retirement. An account with only CHF 10,000 isn't worth the administrative overhead of a separate withdrawal year.
Pro tip: You don't need to split contributions evenly. Some people contribute the full amount to one account until it reaches the target, then switch entirely to the next account. Both approaches work. The key is having roughly equal balances by the time you start withdrawing.
The 2nd Pillar Coordination Trap
Here's something most guides don't mention: your 2nd pillar (pension fund) capital withdrawal is taxed at the same progressive rate as your 3a withdrawals. And if both happen in the same year, they're added together.
This means you need to plan your 3a withdrawals around your 2nd pillar withdrawal. If you're taking a CHF 300,000 pension fund lump sum in 2035, don't also withdraw a 3a account that year. The combined CHF 350,000+ would push you into a much higher tax bracket.
The smart move: withdraw your 3a accounts in the years before and after your pension fund withdrawal, leaving that year free. This is especially critical for your near-retirement planning.
If you have Freizugigkeit (vested benefits) accounts, those withdrawals also get added. Each withdrawal type, whether 3a, pension fund, or vested benefits, deserves its own tax year for maximum savings.
Can You Split an Existing 3a Account?
No. You cannot transfer a partial amount from one 3a account to another. If you have CHF 200,000 in a single account, you cannot retroactively split it into four accounts of CHF 50,000 each.
You can, however, transfer an entire account to a different provider. So if you're unhappy with your current provider's fees, you can move the full balance. But splitting is not possible.
This is exactly why starting early with multiple accounts matters. Once the money is in one account, your options are limited.
How Multiple Accounts Work with the New Backpayment Rule
Starting in 2026, you can retroactively contribute for years you missed (the "Einkauf" or backpayment rule). This creates an interesting interaction with the multiple account strategy.
Backpayments follow the same annual limit. Your regular contribution plus any backpayment for the current year cannot exceed what's allowed. But the backpayment itself is tax-deductible in the year you make it, which means you could potentially have a larger total tax deduction.
If you're making backpayments, you can direct them to whichever account you choose. This is a good opportunity to balance account sizes. If account 1 has CHF 60,000 and account 2 has CHF 30,000, direct your backpayment to account 2 to even them out.
Best Providers for Opening Multiple Accounts
Not all providers make it easy to manage multiple accounts. Here's what to look for.
Allows up to 5 separate 3a accounts per person with different investment strategies. No account fees. Total costs from 0.39%. Excellent for the staggered withdrawal strategy.
Also allows 5 accounts with customizable strategies per account. Fees from 0.17% (conservative) to 0.44% (high equity). Clean app for managing multiple accounts.
ZKB's digital 3a platform. 5 accounts maximum with strategy choice per account. Fee of 0.44% flat. Free WEF withdrawals.
All three digital providers charge CHF 0 for account closure, which matters when you start withdrawing. Traditional banks often charge CHF 50 to CHF 100 per account closure, which adds up when you have five accounts.
I personally have four 3a accounts spread across two providers. I started splitting when my first account crossed CHF 45,000. The whole process took five minutes per new account. My plan is to withdraw one account per year starting five years before retirement, while keeping my pension fund withdrawal in a separate year. Based on my canton's tax rates, this saves me roughly CHF 6,000 to CHF 8,000 compared to having everything in a single account. That's free money for filling out one extra form per year during withdrawal. If you take away one thing from this article: open your second 3a account today if your first one is above CHF 40,000. Your retired self will thank you.
Common Mistakes with Multiple 3a Accounts
The most common mistake. If you're 55 with CHF 250,000 in a single 3a account, your options are limited. You can't split it retroactively, and you only have 10 years to build up new accounts. Start splitting in your 30s or early 40s when you have decades of contributions ahead.
Having 8 accounts with CHF 15,000 each isn't better than having 5 with CHF 24,000. Each additional withdrawal year only saves money if the amounts are large enough to matter for tax progression. Below CHF 20,000, the tax rate is already low in most cantons. Focus on 4 to 5 well-funded accounts.
If you withdraw your pension fund and a 3a account in the same year, both are taxed together at a higher progressive rate. Plan your 3a withdrawals to avoid overlap with any pension fund or vested benefits withdrawals. This coordination is worth thousands.
Married couples' capital withdrawals are combined for tax purposes. If both partners cash out a 3a account in 2035, the combined amount triggers higher progression. Alternate years: partner A withdraws in 2035, partner B in 2036.
Frequently Asked Questions
How many 3a accounts can I have in Switzerland?
There is no legal limit on the number of pillar 3a accounts in Switzerland. You can open as many as you want across different providers. Most individual providers cap accounts at 5 per person, but you can use multiple providers. Your total annual contribution across all accounts is limited to CHF 7,258 (with a pension fund) or CHF 36,288 (self-employed without one).
How much tax can I save with multiple 3a accounts?
Tax savings depend on your canton and total 3a balance. For someone in Zurich with CHF 250,000, withdrawing from 5 accounts over 5 years saves roughly CHF 8,000 compared to one lump-sum withdrawal. In high-progression cantons like Basel-Stadt or Neuchatel, savings can exceed CHF 12,000. Even in low-tax cantons, the savings are typically CHF 3,000 to CHF 5,000.
When should I open a second 3a account?
Open a second account when your first one reaches CHF 40,000 to CHF 50,000. In cantons with steep tax progression (Basel-Stadt, Vaud, Neuchatel), consider splitting earlier at CHF 30,000 to CHF 40,000. The earlier you start, the more time each account has to grow to a meaningful size by retirement.
Can I split an existing 3a account into multiple accounts?
No. Swiss law does not allow partial transfers between 3a accounts. You must withdraw the entire account balance at once. This is exactly why you need to plan ahead and open multiple accounts early. The only exception is a WEF withdrawal (for property purchase), where partial withdrawals from a single account are permitted.
Do married couples need fewer 3a accounts?
Yes. Because married couples' capital withdrawals are combined for taxation in the same year, the strategy shifts. Instead of each person needing 5 accounts, 2 to 3 accounts per person is typically optimal. Coordinate so only one spouse withdraws each year, effectively doubling your available withdrawal years as a couple.
