Buying property in Switzerland: using your pillar 3a and pension fund

Buying a primary residence in Switzerland is one of the rare cases where the law allows you to withdraw your pillar 3a and occupational pension (BVG) before retirement age. Used wisely, these funds can significantly reduce the amount of prior savings you need. Used poorly, they can dangerously reduce your future pension.

At a glance

You can withdraw or pledge your pillar 3a and your occupational pension (BVG) to buy your primary residence.
The minimum equity contribution is 20% of the purchase price, of which at least 10% must come from outside the BVG pension.
The BVG withdrawal is taxed separately at a reduced rate, but reduces your future pension.
The BVG withdrawal can be bought back later to rebuild your pension provision — the 3a cannot.

What you need to understand

Buying a primary residence in Switzerland requires substantial equity. The standard banking rule:

20% equity of the purchase price (at least 10% excluding BVG pension funds).
80% mortgage, with amortisation of the second tranche within 15 years (or by age 65).
Affordability: charges (theoretical mortgage interest at 5%, amortisation, running costs) must not exceed one third of gross income.

To reach the 20% equity threshold, many buyers use their pillar 3a and BVG pension fund, within the limits set by law.

Pillar 3a: withdrawal for a purchase

Conditions

The property must be your primary residence. Not a secondary residence, not a rental investment.
You can withdraw your entire pillar 3a balance with no upper limit.
You can split the withdrawal across several 3a accounts and use it for multiple stages (purchase, renovation, amortisation).

Process

Submit a written request to your pillar 3a foundation.
Attach: sale deed or notarised preliminary purchase agreement, financing plan, mortgage application.
The foundation pays the capital directly to the notary or to the bank financing the purchase.

Taxation

The withdrawn capital is taxed separately at a reduced rate (often 4 to 8% depending on the canton).
A major advantage compared to a withdrawal at the ordinary tax rate.
The tax is generally levied directly at the time of withdrawal.

Disadvantage

The withdrawal is not refundable. Money withdrawn from pillar 3a is no longer there, and you cannot put it back.
You lose the compound interest on that capital for the remaining years until retirement.

Occupational pension BVG: withdrawal or pledge

Early withdrawal

Possible every 5 years for the purchase or amortisation of your primary residence.
Cap: 100% of your BVG balance up to age 50, then limited to 50% of the capital beyond age 50.
Taxed separately at a reduced rate (4 to 8% depending on canton, comparable to pillar 3a).
Reduces your future pension proportionally to the amount withdrawn.

Pledge

You keep your BVG pension intact, but it serves as collateral for the bank.
The bank then agrees to a larger loan (for example 90% instead of 80%).
You pay more interest (higher loan amount), but you preserve your pension provision.
This option is often preferred by advisers, provided your income allows the affordability calculation to work.

Withdrawal process

Written request to your pension fund.
Attach: sale deed, financing plan, mortgage application.
The pension fund pays the capital directly to the notary.
Your married spouse must sign their consent (official form with notarised signature).

Later buy-back

You can buy back the withdrawn amount into your BVG pension fund later (for example at age 55–60), with a tax deduction as an added benefit.
A useful strategy to rebuild your pension provision before retirement.
The pillar 3a, however, cannot be refunded after withdrawal.

Worked example

Purchase of an apartment for CHF 800,000 with a gross annual income of CHF 120,000 for a couple:

Required equity (20%): CHF 160,000.
Of which 10% excluding BVG: at least CHF 80,000 (free savings + pillar 3a).
Of which up to 10% from BVG: up to CHF 80,000.

Typical scenario:

Free savings: CHF 40,000.
Pillar 3a: CHF 50,000 (two accounts, fully withdrawn).
BVG: CHF 70,000 (withdrawn or pledged).
Total equity: CHF 160,000.

Consequences of a BVG withdrawal of CHF 70,000:

Separate taxation: approximately CHF 4,000 to 5,000 (depending on canton).
Reduced future pension: approximately CHF 3,000 to 4,000 per year for life (depending on age at withdrawal).

Documents to prepare

Sale deed or notarised preliminary purchase agreement.
Detailed financing plan.
Mortgage application with a bank.
Pillar 3a statements from all your foundations.
Recent BVG pension certificate.
Identity document and civil status records.
Written consent of spouse for the BVG withdrawal (signature notarised by a notary or at the municipal office).
Recent payslips and most recent tax return.
Debt enforcement register extract.

Timelines to plan for

BVG withdrawal: the pension fund generally has 6 months to process the request.
Pillar 3a withdrawal: generally 1 to 4 weeks depending on the foundation.
Notarised signing: allow 1 to 3 months between the preliminary agreement and the final deed.
Every 5 years only for a new BVG withdrawal (an important limit to plan around if you are considering future renovations).

Common mistakes

Withdrawing the full BVG balance without thinking it through. Your future pension will be reduced. A pledge is often preferable if your income allows the affordability calculation.
Forgetting spousal consent. Without the notarised signature, the BVG withdrawal is blocked.
Underestimating the tax impact. A large withdrawal can push the separate tax rate higher. Stagger withdrawals where possible.
Thinking you can put the money back into pillar 3a. That is not possible. Pillar 3a funds withdrawn for property are gone from the pension system.
Confusing primary and secondary residences. The withdrawal is only permitted for your primary residence (where you are officially domiciled).
Buying at the absolute limit of your means. With the affordability rule at 5% theoretical interest rates, a margin is needed to absorb any interest rate rise.

Useful official links

ch.ch · Financing a property purchase
ch.ch · Home ownership promotion
FSIO · Home ownership promotion
Your pension fund (specific regulations).
Your bank or mortgage adviser.

How Admini can help

Buying a property means pulling together, in just a few weeks, documents that span several different periods of your working life. Admini helps you to:

Centralise your BVG pension certificates, pillar 3a statements, payslips, tax returns and insurance policies.
Prepare a complete mortgage dossier to present to several banks.
Keep track of BVG amounts withdrawn (useful for a future buy-back) and pillar 3a funds.
Receive reminders if you plan a future BVG buy-back to rebuild your pension provision before retirement.

The goal is for you to stay in control of the file — from the first meeting with your bank to the signing at the notary — without having to chase down certificates.