Interactive Brokers (IBKR) is a global broker that accepts clients from most countries. Many non-residents use it as a USD "account" as well as for investing. You can hold cash in USD and 20+ other currencies, convert at near-interbank rates, and wire money in and out. There's no minimum deposit for a cash account.
It isn't a bank account, though. There are no ACH receiving details for payroll or clients, and it has its own risks and tax rules for non-residents, especially the US estate tax on US assets above $60,000. Read those sections before moving serious money.
Is IBKR the right tool?
| Use case | IBKR fit |
|---|---|
| Holding USD savings and investing in US stocks/ETFs/Treasuries | Excellent |
| Cheap currency conversion (e.g. HKD/SGD/JPY → USD) | Excellent |
| Receiving salary or client payments via ACH | Poor (use Wise or Payoneer) |
| Daily spending card | Limited (see "Cards") |
| Building US credit | No |
Eligibility and the mainland China change
IBKR onboards clients through affiliated entities based on where you live. Most individuals worldwide can apply online.
Hong Kong, Taiwan, Singapore, Japan and Korea residents can generally apply as usual.
Account opening, step by step
- Apply online on the IBKR site for your region. Choose an Individual account.
- Personal details: name as on your passport, residential address, tax residency, employment, and source of wealth.
- Tax form W-8BEN: as a non-US person you certify foreign status on Form W-8BEN (built into the application). This sets US withholding on dividends. The standard rate is 30%, reduced by treaty. Mainland China residents usually get a treaty rate of 10% on dividends. Hong Kong and Taiwan have no treaty in force, so 30% applies. Renew it every 3 years when prompted.
- Account type: Cash (no minimum) or Margin ($2,000 minimum). A cash account is simpler if you mainly hold USD.
- Trading permissions: answer the experience questions truthfully. Permissions only affect what you can trade.
- Verify identity: upload your passport and proof of address (recent bank statement or utility bill).
- Wait for approval, usually a few business days. Then fund the account.
Funding (入金)
- Create a deposit notification in the Client Portal first. IBKR gives you the exact bank details and reference for your currency.
- Wire from a bank account in your own name. Third-party deposits are rejected.
- You can deposit in local currency (e.g. HKD, SGD) and convert inside IBKR, which is often cheaper than converting at your bank.
- IBKR doesn't charge for incoming wires, but your bank and any intermediary banks might.
Withdrawals (出金)
- The first withdrawal each calendar month is free. After that, fees apply, for example $10 for a USD wire and about $1 for ACH-type methods where supported.
- Withdraw only to a bank account in your own name. New bank instructions may trigger a short security hold.
- Your receiving bank may charge for the incoming wire.
Cards
- The old IBKR Debit Mastercard has only been available to US-resident clients.
- In late 2025 IBKR launched the Karta Visa Infinite charge card for eligible IBKR LLC clients in several regions. Eligibility depends on the IBKR entity and your country, so check in the Client Portal.
- For daily spending abroad, most non-residents pair IBKR with Wise or a local card.
Interest and fees on idle cash
IBKR pays interest on cash balances above certain thresholds. Smaller accounts earn less or nothing on the first slice. For many non-residents, parking USD in short-term Treasury bills or a money-market ETF is an alternative. Consider the withholding and estate-tax points below. Check the current interest page for rates and thresholds.
The US estate-tax trap for non-residents
This matters most for long-term savers:
- If a non-US, non-resident person dies holding US-situated assets worth over $60,000, the executor must file US estate tax Form 706-NA. US estate tax may apply to the value above the small exemption, at rates up to 40%.
- US-company stocks count as US assets, wherever the broker is located. US-domiciled ETFs (like VOO or SPY) count too.
- Cash deposits at a bank and some debt are treated differently. The rules are technical.
- The $60,000 threshold isn't indexed for inflation. A few countries have estate-tax treaties with the US that change this. China, Hong Kong and Taiwan don't.
Many non-residents reduce this exposure by holding Ireland-domiciled UCITS ETFs (non-US assets), which IBKR offers. Some prefer to keep US holdings modest. Get professional advice for large amounts, and make sure your family knows the account exists.
Pros and cons
Pros: no minimum; cheap FX; huge product range; strong platform; available in most countries.
Cons: not a bank (no ACH receiving); complex interface; monthly withdrawal fees after the first; strict onboarding for mainland residents since 2025; estate-tax exposure on US assets.
Common rejection and freeze reasons
- Proof of address is older than 3 months or doesn't match the application.
- A mainland address with no proof of residence abroad (since Aug 2025).
- Deposits from a bank account in someone else's name.
- Unrealistic net worth or income figures compared with the deposits.
- Not renewing the W-8BEN when it expires.
Sources
- IBKR required minimums, https://www.interactivebrokers.com/en/accounts/required-minimums.php
- IBKR other fees (withdrawals), https://www.interactivebrokers.com/en/pricing/other-fees.php
- IBKR Debit Mastercard, https://www.interactivebrokers.com/en/accounts/debit-mastercard.php
- IBKR Karta Visa announcement (Oct 2025), https://www.interactivebrokers.com/en/general/about/mediaRelations/10-29-25.php
- IRS: About Form W-8BEN, https://www.irs.gov/forms-pubs/about-form-w-8-ben
- IRS: Estate tax for nonresidents not citizens of the US, https://www.irs.gov/businesses/small-businesses-self-employed/estate-tax-for-nonresidents-not-citizens-of-the-united-states
- IRS: Some nonresidents with US assets must file estate tax returns, https://www.irs.gov/individuals/international-taxpayers/some-nonresidents-with-us-assets-must-file-estate-tax-returns
- Yicai (on IBKR tightening mainland onboarding, Sept 2025), https://www.yicai.com/news/102816355.html