J.W.
You need an accountant. If you don't want to deal with an accountant at the least you need quickbooks or a similar program.
The IRS is not going to just let you claim it, you are going to have to pay payroll taxes or self employed withholding. I can't remember the rate off the top of my head because you get part of it back for being self employed. It is a bigger deal that I think you imagine. Not an area I practice so I am just trying to remember classes from a couple years ago.
Just get an accountant!