Hi there
I am from Yemen and I work individually with Amazon in the United States .. I send designs that are printed on T-shirts by Amazon and I get a percentage for the designs only and Amazon owns the product and presses and so on.
My country does not have a tax treaty with the United States, but my income is directly related to Amazon business in US
What is the form that I have to fill in to be in the correct condition
Note: a year ago, I filled out the form W-8ECI to help reduce taxes because I am not a US citizen, I do not reside in the United States, and I do not fully own the products.
I got EIN, but I didn't give it to Amazon when filling in tax information because I'm not sure what I did.
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For my case, what should I do to get the best tax rate (legally).?
Thanks