To ensure a reduced tax rate, you must complete a US tax form (W-8BEN/W8-BEN-E), also known as a “Certificate of Foreign Status of Beneficial Owner for the United States Tax Withholding”. The form’s purpose is to “certify” your country and confirm that you are not a resident of the United States. A W-8 series provided by a Non-US person will remain valid for a period starting on the date the form is signed and ending on the last day of the third succeeding calendar year unless a change in your circumstances makes any information on the form incorrect. For example, a Form W-8BEN signed on 30 September 2021 remains through 31 December 2024.
What countries have a double taxation treaty with the US?
Here is a link to the list of countries with a double taxation treaty with the United States.
What are the tax treaty rates for different countries?
The tax treaty rates for different countries can be found here.
If your country is not on this list, you will have to pay a tax of 30%.