Cumulative Income Tax

Progressive income taxes are very normal in the modern world. But they have a number of artifacts that don't make sense. I want to point some of them out and propose a solution. Problems They reward you for starting and ending your career in July. America has a roughly 10% income tax up to 50k and then 20% up to 100k income tax. So a person who makes 100k throughout a 30y career ends up with a 5k…