i was wondering what tax forum i fill out for being a independent model , i have been a independent model for xtube.com but they couldnt help me with the question?

aslongas the amount on sch c line 29/31 is $400 or over $400, then
you need to file sch c/sch se of form 1040 ;as you are filing as a sole proprietor, partner,, and/or a self-employed individual, you generally have to make estimated tax payments if you expect to owe tax of $1k or more when you file your return.however, You do not have to pay estimated tax for the current year if you had no tax liability for the prior year;you were a U.S. citizen or resident for the whole year;Your prior tax year covered a 12 month period.