And you said "we"? Independent contractor or self employed is for 1 person. So you can't be a independent contractor if there are 2 or more people. Then you need to be a LLC or Partnership. Are you married? What state?
Here's some IRS info.....
IRS info on Husband & Wife joint venture
http://www.irs.gov/Businesses/Small-Businesses-&-Self-Employed/Election-for-Husband-and-Wife-Unincor...
Husband and wife joint business
http://www.irs.gov/Businesses/Small-Businesses-&-Self-Employed/Husband-and-Wife-Business
And see Schedule C instructions page C-2, Business owned and operated by Spouses
https://www.irs.gov/pub/irs-pdf/i1040sc.pdf
