> This mostly puts you in the 25% tax bracket. We'll assume that there's also 5% of state income tax. For FICA, since you're both the employee and the employer, you pay 15.3%. All together, that means you're losing about 45% to tax off the bat.
Because tax brackets are progressive, it really does not make any sense to add the percentages up like that. No one making $100k/year is paying $45k/year in taxes.
> Your first $118,500 are brutal because you're paying an extra 15.3%, but after that FICA goes to 0%.
Only the Social Security tax (12.4%) tops out at $118,500, the Medicare tax (2.9%) does not have a cap, so you're still paying 2.9%, not 0%.
> However, money above that amount can be distributed to the shareholders as dividends. These are taxed at 15%.
This is grossly incorrect. S-corp profits are taxed as ordinary income (regardless of whether they are distributed to the shareholder or not).
> For example, if you can convince the IRS that the prevailing wage for your position is $120k, and you made $300k, then the first $120k gets taxed at 45% or so (see above) and the last $180k gets paid out in dividends and taxed at 15%.
No, the last $180k is taxed at ordinary income rates (which would be 33% given the example numbers). Do you actually operate an S-corp?