What the broker is actually checking
Account opening looks bureaucratic but reduces to three questions: who you are, whether the money is yours, and which tax treaty applies to you. Every document request maps to one of those.
Understanding this makes the process predictable instead of arbitrary.
Documents that get accepted
Identity
A passport is the most widely accepted document for non-residents. National ID cards are accepted by some brokers and rejected by others.
Driver's licences are usually only accepted from residents of the issuing country.
Address proof
A utility bill or bank statement dated within the last three months, showing your name and address exactly as you entered them. The single most common rejection reason is a mismatch between the typed address and the document, down to apartment number formatting.
Tax form
Non-residents generally file a W-8BEN. This form establishes foreign status and claims treaty benefits where applicable.
It must be renewed periodically; an expired form triggers backup withholding at the maximum rate.
The steps in order
One, choose the entity type
Individual accounts are simplest. Joint accounts complicate tax reporting.
Corporate accounts require beneficial ownership disclosures and are considerably slower.
Two, submit identity and address
Photograph documents in good light, all four corners visible, no glare across the text. Poor image quality causes more delays than any other single factor.
Three, complete the tax section honestly
Do not guess at treaty eligibility. Claiming a treaty you are not entitled to creates a liability that surfaces years later, with penalties.
Four, fund the account
Wire transfer is standard. Some brokers accept transfers from accounts in your own name only; third-party funding is rejected for anti-money-laundering reasons.
Where people lose weeks
Name order
If your passport shows family name first, enter it in the family name field. Reversing them creates a mismatch that requires manual review.
Translations
Documents in a non-Latin script often need a certified translation. Ask before submitting rather than after rejection.
Source of funds
Large initial deposits trigger documentation requests. Having a payslip or sale contract ready shortens this considerably.
What happens after approval
Approval is not the end. You still need to understand dividend withholding, which for most treaty countries is 15 percent but can be 30 percent without a valid form.
Capital gains are generally not withheld for non-residents, but reporting obligations exist in your own country and the broker will not handle those for you.
The honest summary
The process is not difficult, it is merely unforgiving of small errors. Accurate data entry, correct document images, and an honestly completed tax form will get almost anyone through.
Most failures are clerical, not substantive.
