Dude, I am thinking something different. I had heard about w-9 but never been envolved with it. Just curious, is it Investment income and no federal, state and fica has withheld. I am guessing it is not a self-employment income as an independent contractor, because you are not receiving 1099 mis form. There is now way you can escape in paying federal and state tax. Here you may have to pay FICA tax too. Some place it was talking about Tax Identification Number which is needed to Residence allien, if that is the case you may not be able to file 1040 rather has to use 1040 NR which gives you less deduction because you are treated as allien.

Can you explain little bit about your work nature and why you got w-9 form instead of 1099-div or similar.

Keep in touch.