What you actually need before you start
The requirements for buying A-shares through Stock Connect are simpler than most foreign investors expect. You do not need a mainland Chinese brokerage account. You do not need a renminbi bank account in China. You do not need approval from the China Securities Regulatory Commission or registration with SAFE. What you need is a brokerage account with access to the Hong Kong Stock Exchange (HKEX), from which the northbound channel routes your orders to Shanghai or Shenzhen.
The practical prerequisites are: a valid passport, proof of address (typically a utility bill or bank statement dated within 90 days), a bank account for funding, and in some cases a tax identification number from your country of residence. If your broker is in the United States, you will need to complete a W-9 or W-8BEN form. Brokers in other jurisdictions have their own equivalent tax documentation requirements. None of this is specific to China — it is standard KYC and tax compliance documentation required for any international brokerage account.
One genuine requirement worth flagging: some brokers restrict residents of certain countries from opening accounts or trading specific markets. US persons in particular face some constraints — not on Stock Connect itself, but on broader HKEX access depending on the broker and account type. Interactive Brokers, the most commonly used international broker for Stock Connect access, accepts US persons for HKEX trading without significant restriction as of 2026, but the regulatory landscape for US-China investment restrictions has evolved over recent years and warrants monitoring.
Choosing a broker: Interactive Brokers and the alternatives
Interactive Brokers (IBKR) is, by a wide margin, the most commonly used broker among foreign retail investors accessing A-shares. The reasons are structural rather than preference: IBKR offers direct HKEX market access, has northbound Stock Connect enabled by default for eligible accounts, accepts clients from most countries, provides multi-currency accounts that simplify RMB handling, and has competitive commission rates. For most investors reading this guide, IBKR will be the answer unless there is a specific reason to look elsewhere.
The account type that matters is a margin account rather than a cash account. A margin account gives you access to international markets including HKEX. Cash accounts at IBKR are restricted to US securities. Despite the name, you do not need to use margin or borrow money — a margin account simply unlocks the full range of tradeable markets. You can fund it entirely with cash and trade within your cash balance.
Alternatives exist for investors who prefer a non-US broker or who want a platform built specifically for Asian markets. Tiger Brokers (listed on Nasdaq, headquartered in Singapore) and Futu (operating as moomoo in Western markets, headquartered in Hong Kong) both offer Stock Connect access and have been aggressively expanding their international user bases. Both are regulated by HKEX-adjacent authorities and offer mobile-first interfaces. The trade-off is that they are younger platforms with less established reputations in Western markets, and their customer support and account protection structures (SIPC or equivalent) differ from IBKR.
For investors at larger institutions or with substantial assets under management, the QFII (Qualified Foreign Institutional Investor) and RQFII (Renminbi Qualified Foreign Institutional Investor) routes offer direct mainland market access without the Stock Connect eligible-stock constraints. But QFII requires regulatory approval from the CSRC and is designed for institutional allocators, not retail investors. For the individual foreign investor, Stock Connect via a retail broker remains the correct and practical path.
Opening an Interactive Brokers account: what to expect
The IBKR application is completed online and typically takes 20 to 30 minutes to fill out. You will provide personal information, employment and financial background, investment experience, and upload identity documents. IBKR asks about trading experience across asset classes — be truthful, but note that you do not need to claim experience with Chinese equities specifically. The system evaluates your overall profile. Approval, once your documents are verified, typically arrives within one to three business days for straightforward applications from low-risk jurisdictions.
During the application, you will select the account type (Individual is standard; Joint is available), choose your base currency (USD, EUR, GBP, HKD, and others are supported), and confirm your regulatory jurisdiction. IBKR operates multiple entities globally — IBKR LLC (US), IBKR UK, IBKR Ireland, IBKR Singapore, and others — and routes you to the appropriate entity based on your country of residence. This matters for regulatory protections: IBKR LLC accounts are covered by SIPC up to $500,000; IBKR UK accounts fall under the Financial Services Compensation Scheme (FSCS) up to £85,000. Your local entity determines your applicable protections.
After account approval, you must complete a Margin Agreement to unlock international markets. Log into the Client Portal, navigate to Account Settings, and look for Trading Permissions. Add "Hong Kong" and "China (via Stock Connect)" to your market permissions. IBKR may require you to complete a short knowledge assessment for derivatives or leveraged products, but for spot equity trading in HKEX-listed stocks and Stock Connect-eligible A-shares, the process is straightforward. Permissions are usually activated within a few hours.
Funding the account and handling currency
IBKR accepts wire transfers, ACH transfers (US accounts), and SEPA (European accounts) as funding methods. Credit card and PayPal are not supported. For initial funding, a wire transfer in your home currency is the most reliable method. Minimum deposit requirements vary by account type — there is no stated minimum for a standard individual margin account as of 2026, though IBKR reserves the right to apply minimums.
A-shares are denominated and traded in renminbi (CNY on the mainland; CNH in the offshore context). When you buy a Stock Connect-eligible A-share through IBKR, the platform automatically converts your base currency to CNH at the prevailing interbank rate, executes the trade in RMB, and holds the position in your account. You do not need to pre-convert currency or hold a separate RMB balance. The conversion happens seamlessly at trade execution, and the currency cost is embedded in the exchange rate IBKR applies (plus any explicit conversion fee, which is typically small).
If you want to manage currency conversion explicitly — for example, to convert USD to CNH at a time you choose rather than at trade execution — IBKR's multi-currency account allows you to hold CNH balances directly and fund trades from that balance. You can convert using the IBKR FX Trader or the Trader Workstation interface. The offshore CNH rate (traded outside mainland China) may differ slightly from the onshore CNY fixing. For most retail investors, the difference is not meaningful, but those trading in larger size should be aware of the CNH/CNY basis.
Finding and placing a Stock Connect trade
In IBKR's Trader Workstation (TWS) or the IBKR mobile app, search for a mainland Chinese company by name or ticker. A-shares on the Shanghai exchange use a six-digit ticker beginning with 6 (e.g., 600036 for China Merchants Bank). Shenzhen A-shares begin with 0 (main board) or 3 (ChiNext, the growth board). When the search results appear, look for the exchange listed as "SEHK" (Stock Exchange of Hong Kong) with the stock type described as Shanghai or Shenzhen A via Stock Connect. Do not confuse this with the same company's H-share listing, which will show as HKEX with a four or five digit HK ticker.
Order types available on Stock Connect through IBKR are more limited than on Western exchanges. Market orders are not supported for Stock Connect trades — you must place limit orders. This is a structural constraint of the northbound channel, not an IBKR policy. Set your limit price at or near the prevailing bid/ask. Price limits on mainland exchanges also apply: A-shares have a ±10% daily price limit (±20% for stocks newly listed or returning from suspension), meaning the stock cannot trade outside that band in a single session. ST-designated stocks (companies under Special Treatment due to financial distress) have a ±5% limit.
Settlement on Stock Connect follows T+1 on the mainland side, meaning the trade settles one business day after execution. This differs from the T+2 standard common in US and European markets, and it affects short-selling (which is effectively not available to retail investors through the northbound channel). When you sell a Stock Connect A-share, the proceeds will not be available to deploy elsewhere until settlement completes. Plan accordingly when timing trades around corporate actions or rebalancing events.
Costs: commissions, stamp duty, and transaction levies
Trading A-shares through Stock Connect involves several layers of costs beyond the broker's commission. Understanding all of them prevents surprises on your contract notes. The main components are: brokerage commission, stamp duty, a securities management fee, a transfer fee, and the Stock Connect transaction levy.
Stamp duty on A-share purchases was reduced from 0.1% to 0.05% in August 2023 — a mainland policy decision intended to support equity markets. Stamp duty applies to the seller only (not the buyer) for A-share transactions. The securities management fee charged by the CSRC is 0.002% of the transaction value. The transfer fee for Shanghai stocks is 0.002% and for Shenzhen stocks 0.001%. The HKEX levies a Stock Connect transaction fee of 0.00565% per side. Totalled, these regulatory charges add roughly 0.01% to 0.02% to each round-trip trade — small in absolute terms but worth knowing.
IBKR's commission for A-share trades via Stock Connect is typically 0.08% of trade value (minimum HKD 18, approximately USD 2.30), as of 2026 — check the IBKR website for current rates as these change. This is the dominant cost for most trades. Compared to the implicit costs of accessing China exposure through an ETF (ongoing management fees of 0.2% to 0.7% per year), the transaction-cost case for direct stock selection is reasonable for investors who turn over positions infrequently.
Tax, reporting, and the foreign investor obligations to know
Dividends received from A-shares held through Stock Connect are subject to a 10% withholding tax deducted at source by the Chinese authorities. This is lower than the standard 20% withholding that applies to non-treaty jurisdictions under general PRC tax rules, because Stock Connect benefits from a preferential arrangement. The 10% withheld will appear as a deduction on your contract note or account statement. Whether you can credit this against your home-country tax liability depends on your country's tax treaty with China — check with a tax adviser in your jurisdiction.
Capital gains on A-share sales are, as of 2026, temporarily exempt from Chinese withholding tax for foreign investors using Stock Connect. This exemption has been in place since the program's launch and has been repeatedly renewed, but it is not permanently legislated. Its continuation cannot be guaranteed, and it is a material consideration when evaluating long-term after-tax returns from A-share investments.
From your home country's perspective, gains and income from A-shares are typically treated identically to any other foreign equity investment: capital gains tax rules apply to disposals, and dividends are taxed as foreign income (subject to treaty provisions). Your broker will generate annual tax documents — in the US, a Form 1099 from IBKR — showing your gains, losses, and dividends. You are responsible for reporting these to your local tax authority. Some countries require specific foreign asset disclosures (the US FBAR and FATCA reporting for foreign financial accounts, for example) that may be triggered by your account at an offshore broker. Review your obligations before opening accounts.