Take out a SARON Mortgage
...and switch later

Some mortgage borrowers deliberately start with a and plan to switch to a . At first glance, this sounds logical—but in practice, it’s often not a good idea. By the time rising interest rates become apparent, the markets have usually already priced them in. Anyone who switches at that point will already be paying higher fixed-rate mortgage interest rates. Some advisors still recommend this approach—but for the customer, it’s rarely good advice in the long run.

Switch to a fixed-rate mortgage with Saron

A Brief Explanation
The Idea Behind the Strategy

The reasoning behind this is simple: as long as interest rates are low, you should take advantage of the low-cost SARON Mortgage—if they rise, you’ll switch to a Fixed-rate mortgage in a timely manner. The goal: to combine the best of both worlds.

Why this strategy rarely works.

In reality, this approach usually falls short at the crucial point: interest rates are unpredictable. The markets react quickly, erratically, and often unpredictably—it’s nearly impossible to pinpoint the “perfect time” to switch. What’s more, by the time the SARON mortgage becomes more expensive, interest rates for long-term Fixed-rate mortgages have usually already risen significantly. Anyone who switches at that point ends up paying the full price. Or to put it another way: Unfortunately, even the best bank advisor doesn’t have a crystal ball to see into the future.

Summary

The biggest drawbacks
At a glance

  • Timing Is a Matter of Luck

    Interest rates often rise quickly. Most people react too late and end up paying (too) high interest rates on their Fixed-rate mortgage.

  • After the surge, prices will go up

    If you wait until interest rates start rising to switch to a fixed-rate mortgage, it’s usually too late: By then, fixed-rate mortgage rates have already risen sharply—and it’s nearly impossible to secure a favorable interest rate at that point.

  • False sense of security

    The strategy gives the impression that you can react flexibly at any time. In practice, however, most people act too late or make the wrong decision.

  • Speculating on Interest Rates

    This strategy assumes a specific interest rate expectation—and is therefore ultimately a bet on the market. Neither market timing nor reliable interest rate forecasts are possible in practice.

  • Historically, this has often been less effective than clear strategies

    Long-term comparisons show that a consistent strategy is usually more successful than tactically switching back and forth between models.

Mehr Informationen zu diesem Thema finden Sie auch hier: SARON-Hypothek

FAQ

Frequently Asked Questions
Answers about switching to a fixed-rate mortgage

Yes, switching is generally possible. In many cases, however, this is only possible with the same provider, especially if there is a fixed-term period. Therefore, it’s important to check the terms of your SARON Mortgage contract and the notice periods.

In theory, the strategy sounds convincing—but in practice, it rarely works. It’s impossible to predict the right time to switch, even though the strategy gives you exactly that sense of control. Anyone who actually catches the right moment is just lucky. But you shouldn’t rely on luck when it comes to financial matters.

Switching to a fixed-rate mortgage makes sense if you need more planning certainty or if your financial situation has changed—not primarily because of interest rate forecasts or current interest rate changes.

Anyone who has to switch after interest rates rise because the increased interest burden is causing unease has chosen the wrong model from the start. Anyone who doesn’t feel comfortable with a SARON Mortgage should—especially when interest rates are low—take out a fixed-rate mortgage right away, without taking the detour.

No. Most SARON mortgages are subject to a framework agreement with a term of two to five years—during this term, it is not possible to switch providers.

Mehr dazu auch hier
Richtiger Zeitpunkt zur Ablösung einer Hypothek

A clear, long-term mortgage strategy makes more sense than tactical switching—whether that means a fully SARON mortgage, a fully Fixed-rate mortgage, or a carefully planned mix. This strategy should be based on a long-term financial plan that also takes your personal tax situation into account.

If possible, choose a SARON mortgage without a fixed term and with a short notice period. This way, you’ll stay flexible—whether you want to or switch to a Fixed-rate mortgage.

Another advantage: Your current provider will also offer you better terms if they know you could switch at any time.

Many SARON mortgages are tied to a of two to five years. This significantly restricts your freedom of choice: You cannot switch providers during this period, and anyone who wants to switch to a Fixed-rate mortgage is limited to the options offered by their current provider.

Result: You lose your bargaining power and “have to accept the offered Interest rate.”

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“Sign up with SARON and switch later”
Why certain banks like to recommend this strategy

Der Ablauf ist oft derselbe:

  1. Empfehlung: SARON-Hypothek abschliessen
  2. Argument: «Sie können später wechseln»
  3. Zinsen steigen
  4. Empfehlung: Jetzt Festhypothek abschliessen und Risiko absichern

Conclusion: You’re switching at exactly the wrong time—namely, after an interest rate hike. It’s exactly the same as if someone were to advise you: “Buy 100% stocks; when the market corrects, you can sell immediately.” It won’t work—or only if you’re extremely lucky. And as we all know, luck is a poor guide when it comes to financial matters.

Wenn Sie unsicher sind, holen Sie sich neutrale Hilfe: Unabhängige Hypothekarberatung bei HYPOTHEKE.ch

Switching Anyway
When Switching Might Make Sense

There are situations in which switching makes perfect sense—for example, if your risk tolerance has changed, you need more planning certainty, or your financial or personal circumstances have changed significantly.

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