Tax havens are places where business people and other super-wealthy individuals keep money in offshore accounts for tax avoidance and other purposes.
Also known as offshore financial centers (OFCs), these tax shelters are often small, low-tax jurisdictions in remote locations, like the Caribbean islands. In these places, wealthy individuals often hold money within shell companies and anonymous entities.
CORPNET, an Amsterdam-based research group that investigates global networks of corporate control, published a 2017 report in Scientific Reports ranking 24 offshore financial centers by their "sink" number, which indicates roughly how much more money comes into the country than how much should come in based on the size of its economy.