What it is used for
For US stocks, Form W-8BEN documents foreign status before the payer or withholding agent.
- It identifies name, citizenship and tax residence.
- It may include the foreign tax identifying number when required.
- It can be used to claim reduced withholding or exemption when treaty conditions apply.
What to keep
Even when the broker manages the form, keep evidence of the withholding status applied to dividends.
- Confirmation that the form was accepted or renewed.
- Dividend statements showing gross amount, source withholding and net amount.
- A history of relevant changes in residence, tax ID or personal details.
Frequently asked questions
Does W-8BEN always reduce withholding?
No. It depends on broker acceptance, correct data and whether treaty benefits apply.
Do I send it to the Spanish Tax Agency?
Usually no. It is generally provided to the broker or intermediary processing US-source payments.