Let´s considerate a property valuated in 189.531,72 €.
The Spanish inheritance tax legislation foresees a reduction of 95% of its value of the property that is your habitual dwelling, and you can maintain that reduction if the final heir keeps the property 10 years. If the heir sells it before that time, the heir would lose the reduction and pay the tax not paid at its moment.
You can apply for the reduction or not, if you foresee that you are not going to keep the property that period of time you can pay the tax without the reduction.
So we have four possibilities.
1.) I grant to my wife my 50% of the property where we have our habitual dwelling and me and my wife are Spanish resident, and once my wife dies, my daughter receives the 100% of the property and she applies for the 95% of the reduction: In this case when my wife receives the 50% of the property she would pay almost nothing. And when my daughter receives the 100% of the property she would have to pay 5.800 €
2.) I grant to my wife my 50% of the property where we have our habitual dwelling and me and my wife are Spanish resident, and once my wife dies, my daughter receives the 100% of the property and she DOESN´T applies for the 95% of the reduction: In this case when my wife receives the 50% of the property she would pay almost nothing. And when my daughter receives the 100% of the property she would have to pay 27.000 €
3.) When I die I grant my wife the right to use my 50% (usufructo) and my daughter receives the 50% of the naked property (nuda propiedad) and both applies for the 95% of the reduction: neither my wife nor my daughter will nothing. When my wife dies is the same.
4.) When I die I grant my wife the right to use my 50% (usufructo) and my daughter receives the 50% of the naked property (nuda propiedad) and both DOESN´T applies for the 95% of the reduction: my wife would pay nothing and my daughter would pay 6.700 €. When the mother dies the daughter would pay again 6.700 € for the 50% that receives from the mother.
So, as you might see, it is much better option to leave to your wife the right to use your 50% and your daughter the naked property of your 50%, instead of leaving to your wife the 50% entirely and then when your wife dies your daughter receives the 100% of the property.
Best regards,
Antonio Robles