For globally mobile capital, an international brokerage account has become basic infrastructure: a single platform provides access to exchanges in the US, Europe, and Asia, to multiple currencies and instruments at once. The best-known example is Interactive Brokers (IBKR); alongside it stand Saxo Bank, Swissquote, and international divisions of major banks.
What it is
A brokerage account with a regulated broker gives the holder direct access to securities markets: stocks, ETFs, bonds, options, futures, and often the foreign exchange market. Unlike a local broker, an international platform combines dozens of exchanges and currencies in one interface, which is convenient for those whose assets and expenses are distributed across different countries.
What the account provides
- Access to global markets from a single account in real time.
- Multi-currency functionality: storage and trading in different currencies, conversion close to interbank rates.
- Margin lending against the portfolio—leverage and liquidity without selling assets.
- Low commissions and fractional shares, which lower the entry threshold for diversification.
Asset protection and regulation
The level of protection depends on which regulated legal entity services the account, and brokers typically distribute clients across subsidiaries depending on country of residence. In the US, SIPC operates: compensation up to $500,000 per account, including up to $250,000 in cash, if the broker goes bankrupt. In the UK, FSCS operates with an investment limit of £85,000: the increase to £120,000 from 1 December 2025 applied only to bank deposits and does not extend to brokerage claims. The basic principle is the same everywhere—segregation of client assets from the broker's own funds, so in the event of the intermediary's bankruptcy, the client's securities are returned to them in most cases.
Reporting and taxes
Tax reporting depends on the servicing entity, account and holder. CRS exchange requires a reportable account and an activated exchange relationship between the relevant jurisdictions; FATCA concerns specified US-linked accounts, rather than every client's residence country. Form W-8BEN documents an individual beneficial owner's foreign status; a reduced US dividend rate also requires eligibility under an applicable treaty. Without treaty relief, US-source dividends generally face 30% withholding. Taxation of capital gains must be checked separately in the relevant jurisdictions.
Access restrictions
Opening and maintaining an account depend on KYC and sanctions compliance. Some brokers restrict service by citizenship or country of residence, and after 2022, many clients with Russian ties faced freezes and refusals. Therefore, the choice of broker and servicing entity should be verified in advance, before transferring assets.
Where direct access to global markets came from
Back in the 1990s, a private client accessed NYSE, LSE, or HKEX almost always through private banking: high entry threshold, personal banker oversight, and commissions embedded in the spread. Electronic brokers lowered this threshold. Interactive Brokers grew out of Timber Hill—a market maker that was one of the first to move options trading to electronic rails in the late 1970s, and in the 1990s opened direct exchange access to external clients. By the 2010s, mobile apps, fractional shares, and multi-currency accounts were added.
For globally mobile capital, the result is simple: one account with a regulated broker replaces several local ones. Money and securities in different currencies are kept in one place, conversion happens at exchange rates, and portfolio reporting is centralized. The same market access that was once presented as a private banking privilege is now available directly; the bank's role in this scheme is reduced to custody and portfolio lending.
Broker landscape: IBKR and alternatives
IBKR is usually taken as the benchmark due to its coverage: dozens of exchanges in one interface, a wide list of currencies and instruments, margin lending against the portfolio. Alternatives fall into two groups. Brokers with banking licenses—Swissquote and Saxo Bank (a Danish bank with a premium platform)—provide storage comfort and a familiar banking perimeter. Specialized brokers like Exante or local players cover specific niches: exotic markets, specific asset classes, work with particular passports.
For a family office, the practical question comes down to one thing: through which legal entity is the account opened. IBKR itself has different entities—US-based IBKR LLC, UK-based IB UK, Ireland-based Interactive Brokers Ireland (which has serviced all EU and EEA residents since August 1, 2024). The choice of entity determines the asset protection regime, sanctions exposure, and the set of available markets.
Compensation schemes by jurisdiction
It's important to understand what these schemes actually protect against. They are triggered in the event of the broker's bankruptcy and the loss of client assets, i.e., when the custody function fails. They never cover a decline in the portfolio's market value—SIPC explicitly states that it does not compensate for losses from falling quotes. And the compensation limits themselves are modest compared to a large portfolio.
What the limits cover by country
In the US, SIPC covers up to $500,000 per account (including up to $250,000 in cash), and IBKR LLC maintains an excess SIPC policy with Lloyd's underwriters on top of that—another $30 million per account with a cumulative limit of $150 million. In the UK, FSCS compensates up to £85,000 on investment claims — that limit was left unchanged, unlike the deposit one. The Irish ICS pays 90% of losses, but no more than €20,000 per investor. In Switzerland, esisuisse insures deposits up to 100,000 francs, while securities under Swiss law are segregated and returned to the client regardless of the bank's fate.
Russian resident: narrowing corridor
Russian citizenship, actual residence, sanctions status, the servicing entity and the requested instruments must be assessed separately. Neither an old account-closure notice nor lack of a third-country residence permit establishes a universal ban on EU, UK and US brokerage accounts. IBKR's current country list includes the Russian Federation; inclusion does not guarantee acceptance of a particular applicant or access to every product. Obtain the entity's current decision before transferring assets.
In parallel, an infrastructure freeze occurred: after EU sanctions against NSD in summer 2022, the assets of Russian investors accounted for through the Euroclear–NSD bridge were blocked. Automatic exchange of tax information under the CRS standard with Russia was suspended by a number of jurisdictions. Separately, Russian foreign-account notification and reporting obligations follow currency-resident status and Article 12 rules, not tax residence alone. Check the applicable exceptions, including time spent abroad, and whether an annual report of funds and other financial assets is required.
Where this is heading
The trend of recent years is consistent: KYC and sanctions compliance are tightening, and account access increasingly depends on the holder's passport and tax residency—the size of capital takes a back seat. A single multi-currency account remains a basic tool for a global portfolio, but its opening and maintenance are now planned in advance, together with the choice of entity, custody jurisdiction, and ownership structure. For family capital, a brokerage account makes sense to consider as one node of the overall structure—in conjunction with private banking, multi-currency functionality, and tax planning through residency.
Matrix: entity, protection, access, taxes
The brand on the platform is not the counterparty. Every group in this market books clients into different legal persons by country of residence, and each of those persons carries its own regulator, its own compensation scheme, its own list of admissible clients and its own tax footprint. The matrix below lists the contracting entities rather than the brands.
| Contracting entity | Regulator | Compensation scheme and limit | Who can open |
|---|---|---|---|
| Interactive Brokers LLC (United States) | SEC and FINRA | SIPC up to $500,000 including $250,000 of cash, plus an excess policy with Lloyd's underwriters for a further $30m per account within a $150m aggregate | Residents outside the EEA routed here — among them the UAE, Singapore, Switzerland in part and Latin America; EEA residents have been moved to the Irish entity since 1 August 2024 |
| Interactive Brokers (U.K.) Limited | FCA | FSCS up to £85,000 on an eligible investment claim — the investment limit was left unchanged when the deposit limit rose | UK residents |
| Interactive Brokers Ireland Limited | Central Bank of Ireland | Irish Investor Compensation Scheme — 90% of the recognised loss capped at €20,000 per investor | All EU and EEA residents since 1 August 2024 |
| Interactive Brokers Hong Kong Limited | SFC | Hong Kong Investor Compensation Fund — HK$500,000 per claimant for defaults occurring on or after 1 January 2020 | Hong Kong residents and part of Asia |
| Interactive Brokers Singapore Pte. Ltd. | MAS | No statutory investor-compensation scheme; the protection is segregation of client assets under the Securities and Futures Act | Singapore residents |
| Saxo Bank A/S (Denmark) | Danish FSA; the Garantiformuen is administered by Finansiel Stabilitet, a company owned by the Danish state | Registered cash deposits up to the equivalent of €100,000 per depositor and investor losses up to the equivalent of €20,000 where financial instruments cannot be returned | EU and EEA clients booked in Denmark |
| Saxo Capital Markets UK Ltd | FCA | FSCS up to £85,000 on investment claims | UK residents |
| Swissquote Bank Ltd (Switzerland) | FINMA | esisuisse covers deposits up to CHF 100,000; securities are segregated under Swiss law and returned to the client regardless of the bank's fate | Swiss residents and a wide list of non-EU countries |
| Swissquote Bank Europe SA (Luxembourg) | CSSF | Deposits under the FGDL up to €100,000; investments under the SIIL up to €20,000 per person per institution, on the basis of the Law of 18 December 2015 | EU and EEA residents |
| EXT Ltd (Cyprus, the EXANTE platform) | CySEC, CIF licence 165/12 | Cyprus Investor Compensation Fund — the lower of 90% of the cumulative claim and €20,000 | EU and EEA residents plus a list of third countries |
| Freedom Finance Europe Ltd (Freedom24) | CySEC, CIF licence 275/15 issued on 20 May 2015 | Cyprus Investor Compensation Fund — the lower of 90% and €20,000 | EU and EEA residents plus a list of third countries |
| Trade Republic Bank GmbH (Germany) | BaFin | Cash sits in an omnibus trust account at partner banks and is covered by the deposit guarantee scheme of the respective partner bank up to €100,000 per customer — not always the German scheme, since the partner pool spans Ireland, France and Sweden; securities sit in custody | Residents of the EU markets Trade Republic serves |
| Charles Schwab and Co., Inc. (Schwab International) | SEC and FINRA | SIPC up to $500,000 including $250,000 of cash | Residents of qualifying countries only; the Singapore route requires Accredited Investor status as defined by MAS |
The second half of the matrix holds what the account can actually buy and what it costs in tax and fees.
| Contracting entity | Segregation and reuse of assets | US-listed ETFs for a retail client | Tax footprint | Published cost |
|---|---|---|---|---|
| Interactive Brokers LLC | Fully paid and excess-margin securities segregated under the SEC customer-protection rule; securities pledged in a margin account may be reused by the broker | Available in full; UCITS funds are generally not registered for sale in the US | W-8BEN documents foreign status; a treaty dividend rate requires separate eligibility, otherwise generally 30%; Form 1042-S where applicable; US-situs estate-tax exposure; reporting depends on entity and account | IBKR Pro fixed $0.005 a share with a $1.00 minimum per order and a 1% of trade value cap; tiered $0.0005–0.0035 a share with a $0.35 minimum; no inactivity and no custody fee |
| Interactive Brokers (U.K.) Limited | FCA client-asset rules; title-transfer collateral arrangements with retail clients are prohibited under Article 16(10) of MiFID II as retained | Unavailable to a retail client for want of the required key-information document; UCITS equivalents available | UK reporting and taxation of the holder; US withholding on US dividends against W-8BEN; US estate-tax exposure unchanged by the UK booking | — |
| Interactive Brokers Ireland Limited | MiFID II client-asset rules; title-transfer collateral arrangements with retail clients prohibited (Article 16(10)) | Unavailable to a retail client: a US-listed ETF has no PRIIPs key information document, and Article 13(1) of Regulation (EU) No 1286/2014 requires that document before the client is bound. Access reopens on an opt-up to professional status | W-8BEN and 1042-S on US income; taxation in the country of residence; CRS reporting inside the EU | — |
| Interactive Brokers Hong Kong Limited | Client securities rules under the SFO | Available | No Hong Kong tax on offshore investment gains for an individual; US withholding and US estate-tax exposure on US-situs assets remain | — |
| Interactive Brokers Singapore Pte. Ltd. | Segregation under the SFA without a compensation scheme behind it | Available | No Singapore tax on capital gains; US withholding and estate-tax exposure remain and there is no US treaty with Singapore | — |
| Saxo Bank A/S | MiFID II client-asset rules; cash on the account is a deposit with a bank, which is why two different limits apply | Unavailable to a retail client under PRIIPs; available after an opt-up | W-8BEN and 1042-S; taxation in the country of residence; CRS | Annual custody fee of 0.12% on stocks, ETFs and bonds, 0.08% on the VIP tier; commission grids vary by country of residence |
| Saxo Capital Markets UK Ltd | FCA client-asset rules | Unavailable to a retail client; UCITS equivalents available | As for the Danish entity, with UK reporting for the holder | Custody fee on the same published scale |
| Swissquote Bank Ltd | Securities segregated under Swiss law and excluded from the bank's estate; cash is a deposit covered by esisuisse | Available — the PRIIPs document requirement is EU law and does not reach a Swiss entity | Swiss stamp duty on transactions; W-8BEN and US treaty relief only if eligible; US-situs estate-tax exposure; CRS subject to account and exchange conditions | — |
| Swissquote Bank Europe SA | MiFID II client-asset rules under Luxembourg law | Unavailable to a retail client under PRIIPs | Taxation in the country of residence; CRS inside the EU | — |
| EXT Ltd (EXANTE) | MiFID II client-asset rules under Cyprus law | Unavailable to a retail client under PRIIPs; available after an opt-up | W-8BEN and 1042-S; taxation in the country of residence; CRS | — |
| Freedom Finance Europe Ltd | MiFID II client-asset rules under Cyprus law | Unavailable to a retail client under PRIIPs | W-8BEN and 1042-S; taxation in the country of residence; CRS | — |
| Trade Republic Bank GmbH | Cash in an omnibus trust account at partner banks; securities in third-party custody | Unavailable: the product range is built on UCITS and ETFs with a KID | German withholding for German residents; taxation in the country of residence elsewhere; CRS | — |
| Charles Schwab and Co., Inc. | US customer-protection rule; margin securities may be reused | Available in full | W-8BEN and 1042-S where applicable; US-situs estate-tax exposure; tax reporting must be checked for the actual servicing entity and account | — |
Read across the two tables and the compensation column turns out to be the least useful one. Ireland pays 90% of a loss capped at €20,000, Cyprus and Luxembourg the same €20,000, Denmark €20,000 on securities against €100,000 on cash, the UK £85,000, Hong Kong HK$500,000, Singapore nothing at all, and the United States $500,000 with a further $30m of private insurance at IBKR. On a seven-figure portfolio all of those are rounding errors. What is not a rounding error is whether the securities leave the intermediary's balance sheet at all: Swiss law segregates them and returns them irrespective of the bank's fate, MiFID II forbids an investment firm from taking title-transfer collateral from a retail client, and a US margin account expressly allows the broker to reuse pledged stock. Where the investor-compensation layer sits relative to the other two regimes that protect client money — deposit guarantee schemes on cash and safeguarding pools at payment institutions — and what each of those schemes expressly refuses to pay for, including crypto-assets, is set out in the client asset protection map, which also carries the cash side of the account: the Danish split between a €100,000 deposit limit and a €20,000 instrument limit is the same distinction seen from the banking end.
The access column is where the real barrier sits, and it is a disclosure barrier rather than a suitability one. A US-listed ETF has no PRIIPs key information document, because its American sponsor has no reason to produce one. Article 13(1) of Regulation (EU) No 1286/2014 requires any person advising on or selling a packaged product to hand the retail investor that document "in good time before those retail investors are bound by any contract or offer". With no document there is no lawful sale, so an EU or EEA resident booked into IBIE, Saxo Denmark, Swissquote Europe, Cyprus or Trade Republic simply does not see US-listed ETFs in the order ticket. The same investor sees the Irish-domiciled UCITS version of the same index instead, and that substitution has its own tax arithmetic, set out in withholding tax under fund domicile.
The barrier is removable on request rather than by argument. Annex II, Section II of MiFID II lets a firm treat a client as professional where at least two of three tests are met: transactions of significant size on the relevant market at an average frequency of ten per quarter over the previous four quarters; a portfolio of financial instruments including cash deposits exceeding €500,000; or at least one year of work in the financial sector in a position requiring knowledge of the transactions envisaged. An opt-up restores US-listed ETFs and costs the investor several retail protections, including the suitability presumptions and, in some firms, access to the ombudsman route.
Tax treatment depends on the asset, beneficial owner and applicable law. W-8BEN documents foreign beneficial-owner status; treaty relief requires a valid claim and eligibility, and the form alone does not lower withholding. US-source dividends generally face 30% withholding without relief. The form generally remains valid through the third succeeding calendar year unless circumstances change; relevant changes require notice within 30 days. The estate-tax exposure is the harder one, because it attaches to US-situs property whatever entity holds the account and whatever the investor's residence: the filing threshold for a deceased non-resident non-citizen starts at $60,000 of US-situated assets, and the bank-deposit exemption that shelters an ordinary US bank balance does not automatically extend to cash sitting in a brokerage account. The mechanics, the treaty list and the ownership fixes are worked through in US estate tax; the practical consequence for the matrix is that a UAE or Singapore resident who buys US shares through IBKR LLC inherits an American estate-tax problem that an Irish-domiciled UCITS holding of the same index does not create.
Decision tree by residency
| Residency and status | Where the account lands | What to hold | What is given up |
|---|---|---|---|
| EU or EEA resident, retail | IBIE, Saxo Denmark, Swissquote Europe, Trade Republic | Irish-domiciled UCITS versions of the index | US-listed ETFs; the compensation limit is €20,000 |
| EU or EEA resident who meets two of the three MiFID II tests | The same entity, after an opt-up to professional | US-listed ETFs and the full US range | Retail protections, and the US estate-tax exposure arrives with the US-situs holdings |
| UK resident | IB UK or Saxo UK | UCITS, with the £85,000 FSCS limit in mind | US-listed ETFs at retail status |
| Swiss resident | Swissquote Bank Ltd or a Swiss bank-broker | Either domicile; segregation of securities is the point | Higher commissions and Swiss transaction stamp duty |
| UAE or Singapore resident | IBKR LLC, or the local IBKR entity | Either US-listed ETFs with an estate-tax plan, or Irish UCITS without one | In Singapore there is no compensation scheme at all; with no US treaty, estate-tax planning is structural |
| Portfolio above roughly $2–5m | A bank-broker with custody, alongside or instead of the platform | Custody separated from execution; Lombard credit against the portfolio | Cost: a bank charges custody where IBKR charges none |
| Russian tax resident without a third-country residence permit | Eligibility requires current checks of citizenship, residence, sanctions, servicing entity and instruments; no universal closure rule | — | See the section above on the narrowing corridor |
This material is for informational and analytical purposes only and does not replace individual investment, legal, or tax advice.
Q/A
Why can an EU resident not buy a US-listed ETF through a European broker?
Because of a disclosure rule rather than a suitability judgement. A US-listed ETF carries no PRIIPs key information document, and Article 13(1) of Regulation (EU) No 1286/2014 requires that document to be given to a retail investor in good time before the investor is bound by any contract or offer. With no document the sale cannot lawfully be made, so the order ticket offers the Irish-domiciled UCITS version instead.
What does opting up to professional status require?
Annex II, Section II of MiFID II sets three tests and requires at least two: transactions of significant size at an average frequency of ten per quarter over the previous four quarters; a portfolio of financial instruments including cash deposits above €500,000; or a year or more of work in the financial sector in a position requiring the relevant knowledge. The opt-up restores the US range and removes retail protections.
Which compensation scheme is the strongest in the matrix?
On paper the American one — SIPC at $500,000 including $250,000 of cash, with IBKR adding an excess policy of $30m per account within a $150m aggregate. Against that, Ireland, Cyprus and Luxembourg cap at €20,000, Denmark pays €20,000 on securities and €100,000 on cash, the UK £85,000 on investments, Hong Kong HK$500,000, and Singapore has no scheme. For a large portfolio the segregation regime matters far more than any of those numbers.
Why should the broker’s legal entity be checked instead of relying on the brand?
The contract is with a particular regulated group company. Its licence, custody chain, segregation rules, compensation scheme and governing law determine the account’s protection; the same brand in the United States, United Kingdom and European Union does not mean the same legal perimeter.
What does SIPC actually cover if a broker fails?
SIPC helps restore missing cash and securities held by a customer of a failed SIPC-member broker, up to USD 500,000 including a USD 250,000 cash sublimit. It does not insure market losses, unsuitable advice or promised investment performance.
How do the UK FSCS and Irish ICS differ?
For an eligible investment claim, FSCS may pay up to GBP 85,000 per person per firm. Ireland’s ICS covers 90% of the recognised loss up to EUR 20,000. Both require checking the actual entity, regulated service and client eligibility, and neither covers a fall in market value.
Does Form W-8BEN resolve every tax issue connected with the account?
No. W-8BEN documents foreign beneficial-owner status; a treaty rate requires a valid claim and eligibility under an applicable treaty. It does not replace income and gains reporting in the holder's tax-residence country or resolve US estate-tax exposure.
When should a non-US investor review US estate-tax exposure?
Before buying, classify any US-situs assets and check the applicable estate-tax treaty and ownership structure. For a deceased nonresident non-citizen, Form 706-NA filing can be triggered when US-situated assets exceed USD 60,000; that is a filing threshold, not a calculation of tax due.