Re: Do offset accounts exist in Switzerland?
I haven't seen anything similar here. One thing that might be of interest to you is that the UBS LIBOR product allows unlimited repayments.
Since interest rates are near zero it doesn't make a difference.
Offset mortgages are more relevant for those taxing jurisdictions where interest income is taxable, but mortgage interest is non-deductible so that you have a more tax efficient outcome.
In Switzerland, they are both taxable/deductible, so there's no advantage to offset other than flexibility and convenience.