Are there tax advantages to purchasing a property as a primary residence?

Analysis: Where the tax authorities are accommodating

To fully utilize the tax advantages of homeownership , you need to understand the deduction options in detail. We break these down into financing costs, maintenance, and energy efficiency measures.

The deduction of debt interest: The classic way to save on taxes.

The best-known lever for tax advantages when buying a home is the deduction of mortgage interest.

• The principle: You can deduct all debt interest from your taxable income (up to a certain limit, which is usually investment income plus CHF 50,000, which is almost always sufficient for homeowners).
• The effect: The higher the interest rates, the lower the taxable income. In times of rising interest rates, these tax advantages act as a buffer for homeownership. They reduce the net cost of the mortgage, as you "get back" a portion through tax savings.
• The balance: These deductions are offset by the imputed rental value, which you must declare as income for tax purposes. Real tax advantages of homeownership arise when mortgage interest and maintenance costs exceed or at least significantly offset the imputed rental value.

Maintenance costs: Flat rate or actual costs?

Herein lies one of the biggest levers for tax advantages when buying a home . Every year you have the choice of how you claim maintenance costs.

• The flat-rate deduction: Without receipts, you can deduct a flat rate of 10% (for newer houses) to 20% (for older houses) of the imputed rental value in most cantons. This is worthwhile in years when you don't renovate. These are essentially "gifted" tax advantages for homeownership .
• The effective deduction: Are you planning a facade renovation or painting work? Then collect all receipts. If the costs exceed the flat rate, deduct the actual amounts. By cleverly combining work in one tax year, you can maximize the tax advantages of buying your own home and mitigate the effects of progressive taxation.

Energy-efficient renovations: The turbo boost for your tax return

Energy-saving investments play a special role in the tax advantages of buying a home .

• Value maintenance vs. value increase: Normally, investments that increase value (e.g., adding a conservatory) are not tax-deductible. This is different for energy-related improvements: New windows, solar panels, or heat pumps are considered maintenance for tax purposes, even if they increase the value of the house.
• The preferential treatment: These tax advantages for homeownership go so far that you can carry over costs for energy-efficient renovations that exceed your net income in the current year to up to three subsequent tax periods (in most cantons and at the federal level). This is a powerful tool for tax planning.

Indirect amortization: The double savings effect

Those who need to amortize their mortgage (second mortgage) can do so directly or indirectly. For tax advantages when buying a home, the indirect route via Pillar 3a is almost always superior.

• Phase 1 (Deposit): You don't pay the amortization amount to the bank, but into a pledged Pillar 3a account. You deduct this amount (currently a maximum of CHF 7,056 for employees) in full from your income. This immediately reduces your tax burden.
• Phase 2 (Debt): Since the mortgage debt with the bank remains (you're not paying it back directly), the interest payments also remain high. This means you continue to benefit from the high interest deduction.
• The result: The combination of the 3a deduction and high debt interest deduction generates significant tax advantages for home purchase over the entire term.

Capital withdrawal from the pension fund

There are also tax advantages to buying a home if you withdraw pension fund money (2nd pillar) in advance.

• Taxation: The withdrawn capital is taxed, but separately from other income and at a greatly reduced rate (capital withdrawal tax).
• To illustrate: If you had received the money later as a pension, it would have been 100% taxable as income. Therefore, taking the money early for homeownership transforms highly taxable pension income into low-taxed capital. This is one of the long-term tax advantages of buying a home .

Construction loan interest rates and fees

Construction loan interest accrues during the construction phase.

• These interest payments are also tax-deductible and offer tax advantages for buying your own home , even before you have moved in.
• In some cantons, transfer costs or notary fees are also partially deductible or credited against the capital gains tax on real estate, which secures later tax advantages for home purchases .

Strategy against imputed rental value

Critics argue that the imputed rental value negates all the tax advantages of homeownership .

This is true during periods of low interest rates for poorly renovated houses.

But the strategy is: Use the volatility.

In years without investments, you claim the flat-rate deduction (free deduction). In years with investments, you significantly reduce your tax burden through effective deductions. This flexibility is one of the true tax advantages of homeownership that renters don't have. Renters can never deduct their housing costs from their taxable income.

Conclusion

The question "Are there tax advantages to buying real estate?" can be answered with a clear "Yes, but...". The "yes" refers to the numerous planning options available: mortgage interest deductions, maintenance planning, and indirect amortization are powerful tools. The tax advantages of homeownership don't lie in the fact that the house itself is a tax haven, but rather in the fact that it allows you to actively manage your taxable income.

The catch is the imputed rental value. It's the price you pay for this freedom. But for those who plan wisely, bundle renovations, and integrate Pillar 3a into their financing, the tax advantages of homeownership clearly outweigh the costs in the long run. Therefore, never consider your property in isolation, but always as part of your overall tax strategy.

If you want to simulate how a renovation will affect your tax bill or whether indirect amortization offers you the greatest tax advantages when buying a home , Loft offers detailed tax calculators and optimization tools.

Glossary

• Tax advantages of home ownership: The sum of all deductions (interest, maintenance, 3a) available to property owners to reduce their tax burden.
• Imputed rental value: A fictitious income that must be taxed. It counteracts tax advantages but is often offset by deductions.
• Mortgage interest deduction: The right to deduct paid mortgage interest from taxable income. A key element of the tax advantages of homeownership .
• Indirect amortization: Repaying the mortgage via Pillar 3a. This maximizes the tax advantages of homeownership through double deductions.
• Flat-rate deduction: A percentage deduction for maintenance costs (usually 10–20% of the imputed rental value), which is granted without receipts.