Megatabbers is correct, a Sub-S structure allows you avoid some of the taxes based on characterization of some income as "wages" (like a normal W-2 employee) and the bulk of it as owner "dividends" (actually called S-distributions). It doesn't make any difference at lower level of incomes, but the savings at higher income (100k+) can be pretty substantial, because you only pay the self-employment tax on a portion of your income. As long as you pay on the salary side an amount that is "reasonable" (interestingly, IRS regs never actually give a brightline rule on what "reasonable" is) then you can shift the bulk of your income to the tax-advantaged S-distribution side.