You would probably have to self assess. Fortune and wealth taxes tend to cost more to collect than they bring in, because it's extremely hard and labour intensi

You would probably have to self assess. Fortune and wealth taxes tend to cost more to collect than they bring in, because it's extremely hard and labour intensive to verify the submitted data. Aside from being an "equality tax" (which policy makers in a country might think is a good thing), it has very little use.