
https://www.icij.org/investigations/paradise-papers/fairer-transparent-tax-system-will-lost-vested-interests-without-public-pressure-warns-eu-tax-commissioner/

https://taxfoundation.org/flat-tax-state-income-tax-reform/

https://commission.europa.eu/strategy-and-policy/eu-budget/long-term-eu-budget/eu-budget-2028-2034_en