CHF 1.6M House Sale: Should You Buy Rental Property or Invest in the S&P 500?
SwitzerlandJanuary 2, 2026

CHF 1.6M House Sale: Should You Buy Rental Property or Invest in the S&P 500?

You’ve just received an offer of CHF 1.6 million for the house you bought fifteen years ago for 800,000. The math feels intoxicating: a clean double, roughly 4.7% annual appreciation before costs. But now comes the decision that keeps Swiss financial advisors employed, do you parlay this windfall into rental properties across the Jura or Neuchâtel, or dump it into the S&P 500 and walk away?

The question surfaces constantly in Swiss property circles, yet most analyses miss the central paradox: you’re already a landlord. Through your Pensionskasse contributions, you own a slice of Switzerland’s 17% pension-fund-controlled real estate market. The decision isn’t just about returns, it’s about whether you want to double down on a system that forces you to fight yourself.

The Tax Reality Check: Your CHF 1.6M Isn’t CHF 1.6M

Before fantasizing about property empires, calculate your actual war chest. The Grundstückgewinnsteuer (property gains tax) varies wildly by canton and holding period. In Zurich, you’re looking at 40% tax on gains for properties held under 20 years, tapering down with each additional year. Fifteen years in? You’re still paying a substantial cut. Add notary fees, federal taxes, and that 800k gain shrinks fast.

Many investors overlook this initial haircut when comparing real estate to equities. The S&P 500 might sit in your brokerage account, but the rental property requires you to first fund the tax office. As one commenter bluntly noted, finding multiple small apartments for 1.5 million in Switzerland is already a fantasy, especially after the tax man takes his share.

Rental Property: The Yield Mirage

Let’s say you net CHF 1.4 million after taxes. Where exactly are you buying these “multiple small apartments”? The research points to Jura and Neuchâtel, where property values haven’t been completely decoupled from local incomes. But here’s the rub: gross rental yields in these regions hover around 4-5%, and that’s before the Swiss special sauce of expenses.

Subtract Nebenkosten (auxiliary costs), maintenance reserves (1% of property value annually is the conservative rule), property management fees, and those delightful surprise invoices for façade renovations mandated by your Gemeinde. You’re netting 2-3% on a good day, fully taxable as income. Meanwhile, your Steuererklärung becomes a labyrinth of depreciation schedules, interest deductions, and proof that your “passive” income requires active bookkeeping.

The vacancy rate nationwide sits at 1% as of mid-2025, which sounds like landlord’s paradise. But that statistic masks brutal local realities. Pension funds, the very institutions managing your retirement, have been aggressively issuing Leerkündigungen (vacancy terminations) in Freiburg, Luzern, and St. Gallen to renovate and raise rents. As an individual landlord, you’re competing with entities that can afford to sit on empty properties for years while you bleed mortgage payments.

The S&P 500: Currency, Taxes, and the Wealth Tax Bite

The S&P 500’s historical 10% nominal return seduces investors, but Swiss residents face unique friction. First, the 35% US withholding tax on dividends, reclaimable through your Steuererklärung, but only if you hold the correct US-compliant ETF and file the proper forms. Many investors either eat the loss or pay an advisor to navigate the paperwork.

Second, Vermögensteuer (wealth tax). Securities count at market value, while real estate is typically assessed below market rate. In Zurich, a 1.4 million stock portfolio triggers roughly CHF 3,500 in annual wealth tax before any income tax on dividends. The same nominal value in property might be assessed at 1.0 million, cutting your wealth tax bill by 30%.

Third, currency risk. Your S&P 500 ETF is denominated in CHF but tracks USD assets. When the SNB surprises markets (as they’ve been known to do), your “safe” index fund can swing 5% in a week based purely on exchange rates. For a retiree needing stability, this volatility matters more than long-term averages.

The Eigenmietwert Time Bomb

Here’s where the debate gets properly Swiss. The impending Eigenmietwert reform, effective 2028, will alter how owner-occupied properties are taxed. While the Reddit discussion correctly notes this only affects owner-occupied homes, it misses the second-order effect: as owner-occupied properties become more attractive due to lower imputed income, rental property demand may soften. Why rent when owning just got cheaper?

More critically, the reform signals a political shift. If legislators are willing to upend decades of tax policy for homeowners, rental property regulations aren’t sacred. The Mietzins (rent) controls that already limit your annual increases could tighten further, especially in high-pressure cities like Geneva and Basel. Your 2-3% net yield might face both political caps on the upside and market pressure on occupancy.

The Pensionskassen Paradox: Why You’re Already Overweight Real Estate

Das hiesige Vorsorgesystem macht fast alle Schweizer auch zu Vermietern, die an einer hohen Rendite interessiert sind.
Das hiesige Vorsorgesystem macht fast alle Schweizer auch zu Vermietern, die an einer hohen Rendite interessiert sind.

This creates the Dürrenmatt-esque paradox: as a tenant, you suffer from high rents driven by your own pension fund’s yield requirements. As a pension contributor, you demand high returns, which means high rents. As an individual landlord, you’re a tiny fish in a pond dominated by whales who answer to actuarial tables, not mortgage payments.

The NZZ analysis reveals that Pensionskassen are investing in luxury developments on Geneva’s Rive Gauche while citing “investment emergencies” that justify bypassing affordable housing mandates. Your theoretical rental property in Jura competes with institutions that can afford to buy half a billion in prime assets and leave them partially empty.

The Framework: Goals First, Assets Second

The comment that “you’re approaching this question in the wrong way” cuts through the noise. Start with your actual objectives:

If you need predictable cash flow in CHF with tax advantages: Real estate in a lower-cost region might work, but only if you self-manage, accept 2-3% net yields, and can weather vacancy periods without selling. You’re essentially buying a part-time job.

If you want passive global diversification with liquidity: The S&P 500 wins, but hedge your currency exposure with a CHF-hedged version (like CHSPI for Swiss exposure or a hedged S&P ETF). Accept the wealth tax and dividend withholding as the price of true passivity.

If you’re optimizing for total return over decades: A 70/30 stock/bond portfolio, held in a tax-advantaged Säule 3a wrapper where possible, historically outperforms direct real estate with far less hassle. The bond portion dampens currency volatility while the stocks drive growth.

The Verdict: Don’t Fight Yourself

The CHF 1.6M question has no universal answer, but the worst choice is ignoring your existing exposures. Check your Pensionskasse’s asset allocation, if it’s already at 30% real estate (and most are), you’re making a leveraged bet on a single sector by adding rental property. The S&P 500 gives you global diversification, but at the cost of currency risk and annual wealth tax friction.

Perhaps the most Swiss solution is the most boring: pay your Grundstückgewinnsteuer, max out your Säule 3a in a globally diversified ETF, and use the remainder as a down payment on a single, well-located rental property only if you actively want the work. The rest goes into a taxable brokerage account where you accept the wealth tax as the price of liquidity.

The controversy isn’t rental property versus stocks, it’s that the Swiss system makes you both tenant and landlord, then asks you to choose sides against yourself. The winning move is recognizing you’re playing both roles and refusing to double down on either.