Submit form
W-8BEN for an individual or
W8BEN-E for an entity to establish that the Сontractor is foreign and that the work is not being performed from within the US.
Without filling out this form, or if the Сontractor's country does not have
a tax treaty with the US, Сontractor will have to pay a 30% tax.
You can follow these steps or use a service such as
Deel, which will fill out and submit all of the documents for you automatically when starting a new contract.