NRA withholding applies only to payments made to a payee that is a foreign person. It does not apply to payments made to U.S. persons.
Usually, you determine the payee's status as a U.S. or foreign person based on the documentation that person provides. However, if you have received no documentation or you cannot reliably associate all or a portion of a payment with documentation, then you must apply certain presumption rules.
The “Identifying the Payee” section in Publication 515, Withholding of Tax on Nonresident Aliens and Foreign Entities, has a longer discussion of how to handle payments in these situations:
- When the payee is not the person you pay
	
- U.S. agent of a foreign person
 - Disregarded entities
 - Special Chapter 4 rules
 
 - Flow-Through Entities
	
- Chapter 3 payees
 - Chapter 4 payees
 - Foreign partnerships
 - Foreign simple and grantor trusts
 - Fiscally transparent entities claiming treaty benefits
 
 - Foreign Intermediaries
	
- Special rule for chapter 4
 - Nonqualified intermediaries (NQI)
 - Qualified intermediaries (QI) 
		
- Qualified derivatives dealers (QDDs)
 - Branches of financial institutions
 - QI agreement
 - Documentation requirements
 - Reporting requirements
 
 - U.S. branches of foreign banks and foreign insurance companies
 - Withholding foreign partnership and withholding foreign trust
		
- WP agreement and WT agreement
 - Documentation