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| If you want to take the exchange rate risk out of the purchase then you should NOT take a swiss frank mortgage against a property bought in euros, because by doing so you have exposed yourself to the exchange rate risk. | |
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I guess it's a question of which risk you want to be exposed to.
Suppose I buy a house today for EUR800k, but earn a salary in Swiss francs. I have two choices:
1. Take a mortgage in EUR. By doing this, I expose myself to the risk that my mortgage payments can increase (or decrease) in CHF terms each month.
2. Take a mortgage in CHF. By doing this, the house price is locked in at today's exchange rate, meaning that I'll forever be paying off a mortgage of around CHF1m. In CHF terms, my payments will remain the same each month, but there's always the risk that exchange rate fluctuations will affect the underlying value of the house.
When most people talk about exchange rate risk, I think they're talking about the first scenario -- the risk that they take on a monthly mortgage payment they can afford today in CHF terms, but which becomes unaffordable as the exchange rates fluctuate.
Scenario 2 only causes problems when it's time to sell the house.