I'm from Vietnam and a vietnamese citizen. A startup in the US wants to contract me for 50 hours of work. They gave me an IRS form and suggested I fill it out. The form name w-9
So I have 3 questions here.
- Do I have to fill out the form?
- If I filled the form, does that mean I will have to pay tax?
- How much tax would I have to pay? Like 40% of what the start-up pays me?