S-corp or llc? that sounds a lot like your income tax or equivalent (you pay something very much like income tax on profits for pass-through entities) - which is to say, if you were farming out this work to someone else, most of that tax bill would follow the money you are paying someone else to do the work.

At that much, I'd guess you are paying income tax at a rate that would indicate that you have significant other income.

Income tax/fica are the hardest to get around (and most regressive) tax you have to face, but if you wanna stay in America, there's not a lot you can do. (you can shave off something around ten percent if you want to leave California and move somewhere without a state income tax... but there's no getting around federal income and FICA tax.)