I am located in USA.
I have a full time job where I earn a decent pay. Apart from that I earn good amount (less than full time) from my side ventures. On my side venture I earned around 20K in 2017. The company is not part of LLC. I am the sole owner.
My question is that 20K + full time salary puts me in a different tax bracket where I own quite a bit of tax ($4500+).
I don't have much expenses that I can claim in my side venture since everything is online. I have already claimed home office, Mac, phone, internet etc
Is there anyway I can take the money from my side income and put that in some sort of savings account which can help me bring down by total gross income hence bringing down the tax I owe. What can I do with my side income so that it does not increase my tax bracket?