In Spain there are just over eight million taxpayers who declare between 21,000 and 60,000 euros in income tax. Eight million middle class workers pay 50,000 million a year.

They are, therefore, the largest payers of the main tax in the tax system. The fact that the middle class is the big payer of the big tax has only become more accentuated in recent years and will continue to be so in the coming years. Starting this April 3 and until July 1, taxpayers will be able to file their returns online.