Complex sentence: Interest income is taxed like a wealth tax, i.e. a fixed 30% out of an assumed yield of 4% is a rate of 1.2% imposed on assets in excess of €21,139 (2012).
Split into simpler sentences: Interest income is taxed like a wealth tax, i.e. a fixed 30% out of an assumed yield of 4% is a rate of 1.2%. The tax is imposed on assets in excess of €21,139 (2012).