Five mechanisms, one principle: the tax deduction isn't personal savings that evaporates into consumption — it's a Social Dividend the State co-invests with you, reinvestable year after year into the cause you chose.
It's a friction failure, not a willpower one: the money passes through the donor's account before it can be reinvested, and that intermediate step is where intent gets lost. Each initiative closes that friction in a different fiscal context.
The State has already decided to refund that money — the deduction costs it nothing extra. The only thing that changes is where the transfer goes: instead of returning to the donor as savings, it's automatically reinvested in the cause. It's the same compound-interest logic applied to generosity.
Precommitment captured at peak generosity, before friction dissolves it.
The taxpayer stops being a passive "payer" and becomes a co-investor alongside the State.
Each reinvested refund cycle generates the next deduction — a real compounding effect.
Each initiative activates a different fiscal instrument: the IRPF box, the payroll form, the charity fund, the US tax code section, or the secondhand sale.
The full theoretical framework behind Redona: fiscal policy as nutrient, behavioral economics as nudge, financial mathematics as engine, and technology as enabler. Free-distribution work (Spanish).
The project grew out of more than two decades of social-innovation work — including co-founding solidarity initiatives in 2002 — combined with a 25+ year career in digitalization at a Spanish banking-sector financial institution. That intersection of finance and the social sector shaped the Social Dividend concept: applying the compound-interest logic common in investing to generosity.