The document discusses how tax havens cost countries billions each year in lost tax revenue. It estimates the global losses at $427 billion annually, which corresponds to 9.2% of health budgets for countries on average. This lost revenue could pay for 34 million nurses salaries globally. Lower income countries lose an even higher percentage, with India losing over 40% of its health budget to tax havens. The document argues that overhauling tax systems and increasing transparency is critical to addressing issues like funding for healthcare, especially during the Covid-19 pandemic. It maintains that secrecy allows corporations and wealthy individuals to avoid taxes by shifting profits and assets to tax havens.