For non-US residents, with a completed US Tax Form (W-8BEN etc), the withholding tax is 15%. We arrange to have this form completed and lodged on your behalf by our US broker partner upon your first funding.
Without completing and lodging the US Tax Form (W-8BEN etc), the withholding tax is 30%.
This withholding amount is only on dividends paid and not on share sales.
Due to the complexities involved with tax, for tax advice, please obtain independent & professional advice which takes into account your own set of facts and circumstances.
Australian Tax File Number
Your Australian TFN does not affect your US tax status. If you don't enter it on the sign up, it's not a concern. There is also no need to add it later either. In all cases, we arrange for the W8 form to be lodged correctly on the proof of your foreign residency.