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Formation of S-Corp for Gambling Trade
You probably don't need S-Corp. There's no difference between what you can deduct on your Schedule C and what you can deduct on 1120S, it will just cost you more money. Since you're gambling yourself, you don't need to worry about liability - but if you do, you should probably go LLC route, much cheaper and simpler. The "reasonable salary" trick to avoid FICA won't work. Don't even try. Schedule C for professional gamblers is a very accepted thing, nothing extraordinary about it.