As I understand it these are marginal tax rates. i.e. you don't pay 13% on your entire income. The first $74k is tax free. From $74k to $370k you pay 6%. Above $370k you pay 13%. So if you earn $600k you only pay 13% tax on $230k ($600k - $370k). You do the maths, but it works out to less than 10%.
And as Boss Hogg so wisely mentioned "What are you going to declare?"














