IMHO there are six key problems here: 1. A predicted consequence of Brexit was that the UK would become more of a tax haven once freed from the shackles of EU

IMHO there are six key problems here: 1. A predicted consequence of Brexit was that the UK would become more of a tax haven once freed from the shackles of EU banking and financial regulation. This would be (and is) sold under the banner of jingoism and because of jobs as some business moves to the EU; 2. The US demands financial transaction information as the price for access to the US banking system. The flipside of this is that the US doesn't share that information with anyone else so ironically (or perhaps by design) the US has its own role in hiding assets. Note that South Dakota featured prominently in the Pandora Papers; and 3. We need to tax real estate more when the beneficial owner isn't known or isn't a tax resident of wherever the real estate is located. Treating real estate purely as an asset class is having real consequences for the ability of people to live. New York City, London and other cities are where people work and live and shouldn't simply be a place for oligarchs to secretly park money. Yes, we have property taxes in NYC as one example but they're not high enough. For example, a $100m apartment only pays about 10-15x the taxes on a $1m apartment and that $1m apartment pays 2-3x the taxes on a $1m single-family home. Interestingly, US citizens and residents have to declare foreign assets every year (twice; once to the IRS and the exact same information also to the Treasury on a separate form) but... foreign real estate is an excluded asset. You don't even have to report it. Why? It's a nonsensical exclusion for the wealthy; 4. We need to do something about using debt to avoid taxes. This is another zero-interest problem. Why repatriate or realize gains and pay 35% when you can borrow at <1% basically forever. Worst case you end up realizing gains to pay those loans back. For individuals, you get out of that by dying (ie your beneficiaries inherit things on a stepped up basis). For companies, borrowing money should count as repatriating foreign profits and be taxed accordingly; 5. We need to tax more things at source; and 6. We need to do more about using IP shenanigans to shift profits overseas. Additionally, countries need to start apportioning profits based on revenue. If Apple earns 25% of their revenue in the US then the US should tax 25% of their profits. People being unwilling to pay for the world that allows their wealth to exist is not a new problem but like all such efforts before them, the ultimate form of wealth redistribution is war and revolution. And nobody wants that.