I am an On-Line reseller of goods and services all over the world from the US and after I get paid, I get my commission and send the rest to the suppliers or Owners let say through Western Union outside of US.
What is needed to deduct those payments to foreign business even they could be in amounts less than 500 USD?
How my business will be taxable?
Any form is required? e.x: 1099-misc, 8300 or W-8Ben??
Well I still think you should have some sort of paperwork for the sales you do for others if you collect all the money then pay out a portion for the goods you sell.... any emails maybe or a contract to allow you to sell their items ? But if all you really have is the WU payouts then hopefully that will suffice in an audit. Just remember in an audit the IRS will say "prove what those payments are for" because they will take the position that those were non deductible personal purchases and not business ones.
Those suppliers need to be giving you some kind of receipt or invoice showing who you paid and what you paid them for, otherwise this looks like you're just funneling money out of the US for who knows what reason.