Fernando Rocha, director of the labour school at CCOO (Comisiones Obreras, one of Spain's two largest union confederations), together with economists at the universities of Granada and Valencia, proposed on 21 September 2026 modulating Spanish corporate income tax by the employment a company generates, charging higher rates on firms that distribute little of their revenue as wages 1. Spanish social security contributions raised €109.913bn between January and July 2026 from 22.345 million affiliates 2.
Every euro of that is levied on a payroll. Spain's pension and healthcare financing rests on the number of people in work and what they are paid, which makes a fall in the wage share a fiscal problem long before it becomes an unemployment statistic. A firm that produces the same output with fewer salaries pays less into the system while drawing on it exactly as before.
Nobody has legislated this. It is a proposal from a union research body and two university departments, not a government bill, and Spain's corporate tax base is set in a parliament with no majority for it. CCOO picked an unusual target. Every other European response in this briefing bargains over the worker's terms of exit or re-entry, as Spanish unions did at Concentrix in A Coruna in August . This one argues that the state's own revenue model assumes a workforce, and quietly stops working if that assumption fails.
