[ChrisMonkeymaker]

For indiviuals, I believe the marginal tax rate is 15% for the first 40k or so. Then any earnings above that the tax rate is 28%. If it is a corporation, the tax rate is 15% for the first 50k or so. Then it becomes 28% for any income above that.

So if you play as a corporation and make 90k, you can retain 50k as earnings for the corporation and pay yourself 40k in salary. You'll end up only paying 15% for the entire 90k. If on the other hand you do it as an individual, you'll owe 15% for the first 40k or so (after exemptions) but pay 28% on any income above that.

There will be no self-employment if you have a corporation. However, you have to personally contribute 7% for SS and medicare like all employees do (this is taken from the salary that you earn from the corporation). And the corporation pays 7% for you like all employers do. The advantage is that this 7% becomes a deductible business expense from the point of view of the corporation and will therefore lower the taxable income. We're talking C corporation not S corporation.

This would all be useless if you can't play poker as a corporation. Astroglide hasn't given any specific info about corporations for poker playing in his link.