A 3% increase in billionaire taxes could prevent 29 million deaths

Measures to redistribute wealth around the world can bring together other resources to improve the health of people in low- and middle-income countries.


A study led by the ISGlobal group in Barcelona concludes that cuts in official development assistance (ODA) could be offset by the application of various measures to share the world’s wealth. The most tangible benefits come from a 3% increase in taxes on the world’s billionaires, a measure that would prevent 6.6 to 29.5 million deaths by 2030, including 4.4 million deaths of children under 5 years of age.

"in 2025, the aid fell by 23.1%."

The United States, France, Germany and other countries have reduced their contribution to official development assistance (ODA) in recent years. in 2025, this aid was reduced by 23.1%. Lack of funding has led to the reduction or cessation of HIV, malaria and tuberculosis programmes, mostly in the countries of the Southern Hemisphere. The cuts have also affected a number of programmes aimed at reducing hunger and poverty.

“They propose to increase taxes on billionaires by 1%, 2% or 3%.”

The researchers analyzed data from 59 low- and middle-income countries between 2002 and 2021 and determined the relationship between official development assistance received and mortality. Based on this relationship, mortality data were calculated for a number of possible scenarios: maintaining aid reductions in the future and separately implementing 10 measures to redistribute wealth. Among these measures, it is proposed to increase taxes on billionaires by 1%, 2% or 3%.

The results show that a 1% increase in taxes could prevent 15 million deaths by 2030, a 2% increase of 22.9 million and a 3% increase of 29.5 million. The authors argue that the study has revealed the beneficial impact of international aid on global health and the potential impact of wealth distribution.

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