In case it makes a difference we won't be renting it out.
TIA
We're about to buy a holiday home in Spain for which we will have to pay a non-resident tax to the Spanish government. I know that on our Swiss tax return we'll have add Eigenmietwert to our income, but is the Spanish tax that is already paid deductible from that? We will also have to pay council tax. Can that be deducted? Is the 1% pauschal/actual costs for maintenance also deductible like for our main residence in Switzerland?
The Eigenmietwert (minus maintenence) of a foreign home is only used to determine the tax rate but is not added to the taxable income. Thus, by virtue of the system, the foreign tax is already accounted for.