Pillar 3a and Mortgage: How to Optimise Your Retirement Planning

The synergy between pillar 3a and mortgage

Pillar 3a — tied individual retirement savings — is one of the most powerful tools in the Swiss tax arsenal. Combined intelligently with your mortgage, it can generate significant tax savings whilst building capital for retirement. This strategy allows you to reconcile two major objectives: optimising your tax burden and building sustainable property wealth.

Uses of pillar 3a for property

Home purchase financing (EPL)

Home ownership encouragement (Encouragement à la propriété du logement — EPL) allows you to withdraw your pillar 3a to finance the purchase of your primary residence. Conditions:

• The property must be your primary residence
• Withdrawal possible every 5 years
• Repayment possible (but not mandatory)
• Minimum withdrawal amount: CHF 20,000
• Can be used for equity contribution or to reduce the mortgage

This option is particularly attractive for first-time buyers struggling to assemble the 20% equity required.

Indirect amortisation

Rather than repaying your mortgage directly, you pay the amortisation amount into your pillar 3a. In the long term, the capital is used to repay the mortgage — with the tax advantage of annual contributions. This strategy allows you to maintain the tax deduction of mortgage interest for longer. To learn more about the differences between direct and indirect amortisation, consult our detailed guide.

Energy renovations

Since 2021, pillar 3a can also be used to finance value-adding renovations, particularly energy efficiency improvements. This option aligns with Switzerland's energy transition policy and can have a positive impact on your mortgage.

The tax advantage of indirect amortisation

Every franc paid into pillar 3a is deductible from your taxable income. For a taxpayer in the canton of Vaud with a marginal tax rate of 35%:

• Maximum annual contribution (employee 2025): CHF 7,258
• Tax saving: CHF 7,258 × 35% = CHF 2,540 per year
• Over 20 years: CHF 50,800 in tax savings

This example illustrates the considerable long-term impact. In cantons with high taxation such as Geneva or Vaud, savings can even exceed 40% of the amount contributed.

Pillar 3a bank account vs insurance

Pillar 3a bank account (account or fund)

• Flexibility: you choose the amount paid each year
• No constraints if your income varies
• Returns linked to markets (if fund) or guaranteed (if account)
• Generally lower fees
• Possibility of staggering withdrawals over several years

Pillar 3a insurance (linked life insurance)

• Commitment to pay regularly
• Protection in case of death or disability
• Guaranteed return plus participation in surpluses
• Less flexible
• Integrated insurance cover
• Higher fees at the start of the contract

Advanced optimisation strategies

Staggering withdrawals

To minimise the tax burden when withdrawing, it is ideal to own multiple pillar 3a accounts and stagger withdrawals over several years. This strategy allows you to stay in more favourable tax brackets.

Optimal timing

Early withdrawal for EPL must be carefully planned. You must consider age, future income prospects, and probable changes in taxation.

Coordination with pillar 2

The pillar 3a strategy must be aligned with your pillar 2 buyins to optimise all your tax deductions. For property purchase, you can also withdraw funds from your pillar 2 under specific rules.

Optimal strategy

For most property owners, indirect amortisation via a pillar 3a bank account offers the best balance between flexibility and tax advantage. Combine it with maintaining the deduction of mortgage interest for as long as the current system permits.

The key to success lies in a personalised approach that takes into account your family, professional and wealth situation. RealAdvisor Finance can support you in this optimisation process.

Important note: with the forthcoming abolition of imputed rental value, the equation will evolve. The deductibility of mortgage interest could be called into question, making indirect amortisation even more advantageous. Plan now with a specialist adviser to anticipate these major changes.

Frequently asked questions

Can I use my pillar 3a to finance a secondary residence?

No, home ownership encouragement (EPL) only applies to your primary residence. For a secondary residence, you will need to use other sources of financing.

What is the maximum amount I can contribute to my pillar 3a in 2025?

For employees, the maximum amount is CHF 7,258 in 2025. For self-employed persons without pillar 2, it is 20% of net income, capped at CHF 36,288.

Is indirect amortisation always more advantageous than direct amortisation?

Not necessarily. This depends on your marginal tax rate, your age and your overall wealth strategy. Indirect amortisation is generally more attractive for high earners in cantons with high taxation.