@pyager @rbreich I think setting the cutoff for 91% tax rates at $1B is far too high, too. You could probably not hurt many people if you set that rate at anything over $250k.

You could safely set an income tax rate of 100% for any income over, say, $500k. At that point, the person will have earned $500k in one year, and only any marginal income above the first $500k they earn would be taxed at that rate.