Mass. Millionaire’s Tax brought in nearly $2.2B last year, state says – MassLive
The Irish Times view on Ireland’s wealth: a case to increase tax on homes and inheritances
Taxing billionaires: wealth dynamics and revenues from a global minimum tax – Real Instituto Elcano
“Billionaire wealth has increased over the past four decades from 3% to 13.5% of global GDP. Novel findings from economic research have shown that billionaires benefit from considerably lower effective tax rates than the general population, with this growing wealth disparity aggravating global inequalities. The dynamics of wealth indicate that the share of wealth that billionaires have will continue to grow to around 20% of global GDP in the next decade, in the absence of any policy to address this. Introducing a 2% global minimum tax on billionaire wealth offers a viable solution to address these issues.
“We estimate that such a tax can generate 0.22% of global GDP in additional revenue in 2025, while for the following years the revenue is projected to increase to 0.27% of global GDP by 2030. The overall amount generated from a tiny percentage of the world population can reach US$2.1 trillion cumulatively over the next seven years.”