Review: Interactive Brokers online share trading broker

Its brokerage fees are among the lowest on the market, however the platform will be tricky for new investors to pick up.

Interactive Brokers’ share trading platform is available to Kiwis and offers an impressive range of tools for active or professional investors. While its bottom of the market fees are attractive, the complex layout will make it a challenge for beginners to master and there are caveats to be wary of.

That being said, if you’re an experienced trader looking for a fully customisable service, this platform is worth looking at. Check out my views on the platform below.

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Type of brokerOnline only
Available MarketsUS shares, ASX shares, Global shares, Forex, Options, Mutual funds, ETFs, Metals
Standard brokerageUSD 0.0035 or 1% of traded value
SupportPhone, Email

Quick verdict

Good for
  • Active or professional traders
  • Low brokerage fees
  • Portfolio tracking, live updates and company notifications
  • Access to 135 markets in 33 countries
  • Fractional investing
Not so great for
  • Not for beginners
  • No access to the NZX
  • Monthly inactivity fee

Company Background

Interactive Brokers Group was launched in the United States over 40 years ago. Today, it’s one of the oldest share trading platforms on the market, servicing 135 global markets.

Its suite of products include stocks, options, futures, forex and fixed income. It’s headquartered in Connecticut and regulated by the the SEC, NYSE, FINRA, SIPC, FCA and other international regulatory agencies.

Rundown of the Interactive Brokers platform

Interactive Brokers’ (IB) trading platform, the Traders Workstation (TWS), can be used on both desktop and mobile. New investors may find IB’s platform overwhelming, but the positive here is that almost everything on Interactive Brokers is customisable to suit your personal trading style, whether you’re trading shares, options, futures, forex or a mix of the above.

Unfortunately, to optimise your account through TWS, you’ll need to really understand what you want to get out of it – no easy task for beginners. On top of this, I found the set-up complex enough that even advanced traders will find the process takes some time to get right.

As Interactive Brokers states on its website, this platform is targeted toward advanced investors. Make sure to check out the trial version of TWS to test whether you’re ready to launch the real deal.

What are the key features of IB share trading?

If you’re thinking of opening an Interactive Broker account from New Zealand, here are some of the features you can expect:

Single account for stocks, forex and CFDs

Unlike other trading platforms where you need multiple accounts to trade different products, IB allows you to access, international stocks (including those on the ASX), futures, options, fixed income, CFDs and ETFs all from the one account.

Invest in global markets

You can buy and sell stocks and other securities from 26 different countries from the one account 24 hours a day, 6 days a week. Unfortunately, IB does not list its conversion rates on the website. To find out what rate IB is offering for each currency, you’ll need to manually enter the details into the trading platform.

Fractional investing

Interactive Brokers offers fractional investing for US stocks, with no minimal trade requirement. This means you can trade in dollar amounts, instead of individual shares. So, say you want to invest in Amazon shares – which currently trade for around $3,310 each (November 2020) – you can invest just $100 of the stock instead.

Low brokerage fees

Interactive Brokers offers brokerage fees (starting from $1 for Australian stocks, for example). While that’s incredibly low, that fee only kicks in once you start trading amounts of $300,000,000 or more, which makes it seem like more of a marketing angle than anything else. That being said, the fees are still very low.

Wide range of order types

On basic retail trading platforms, investors are usually presented with one or two order types: limit orders or market orders. Interactive Brokers offers a much wider selection to suit professional traders. Along with limit and market orders, you can choose from the following:

  • Stop
  • Stop limit
  • Limit on close
  • Market on close
  • Trailing stop
  • Trailing stop limit

Confused? Interactive Brokers has a great video explaining what these order types mean and how to use them on the platform.

Portfolio builder to track investments

Portfolio builder is an additional tool that allows you to create custom portfolio strategies using historical data and research. Here are some of the main features:

  • Allows you to easily compare and test your portfolio against a benchmark index.
  • Gives you a live news feed and real-time notifications of takeovers, earnings, options expirations and more.
  • Lets you compare your portfolio and strategy with other leading investors.
  • You can adjust your strategy until the historical performance meets your standards.

What are the fees?

Interactive Brokers markets itself as having the lowest cost trading platform on the market. That may be true, but there are loopholes that you need to be wary of.

Broker or commission fees

While the brokerage (commission) fees are low, you’ll also be charged a small clearing fee, an exchange fee, a monthly inactivity fee and a subscription fee to access live data. On top of that, the fees vary depending on which fee structure you choose (tiered or fixed), which products you’re investing in and the country those products are listed in.

Inactivity fee

There’s an inactivity fee of $10 per month if your brokerage fees on trades are less than US$10. It’s a tiered system where the inactivity fee is equal to US$10 minus broker commissions. For example, if your commissions equal US$6 in one month, your activity fee would be US$4 (US$10 – US$6). Annoyingly, this fee increases to US$20 per month if your account falls below $2,000 – a point that isn’t clear before signup.

International share trading fees

IB’s fees on international stocks depend on which country the stock is listed and which fee structure you’ve chosen (tiered or structured). Stocks listed in the US, Canada and Mexico charge brokerage fees per stock rather than value – making it difficult to predict how much you’ll be charged for future purchases or sales of US stocks. Stocks listed in Europe use trade value to set the fees. Here are some of the fees on international stocks:

LocationBroker Fee
US (<= 300,000 shares per month)Tiered: $0.0035 per share capped at 1.0% of trade value
Fixed: $0.005 capped at 1% of trade value
UK (up to GBP£50,000 trade value)Tiered: GBP£1.00 per order or 0.05% of trade value
Fixed: GBP£6.00
UK (over GBP£50,000 trade value)Tiered: GBP£1.00 per order or 0.05% of trade value up to GBP£40,000,000
Fixed: 6.00 + 0.05% (of incremental trade value > GBP£50,000)

How do you pay?

You can transfer money into your Interactive Broker account via a bank transfer.

How do I open an Interactive Broker account?

It’s relatively simple to open an Interactive Broker account; however, there are a few interesting challenges. First, you’ll need to confirm that you’re an experienced investor with more than 100 trades under your belt. If you can’t confirm this, IB asks you to conduct simulated trades using the demo version first. It also requires you to have liquid net assets of at least $20,000.

When you’re ready, you’ll need to provide the following information:

  • Your name
  • Date of birth (you must be 18 years or over)
  • Contact details and residential address
  • Asset and income details
  • Employer name and address
  • Proof of identification – e.g. passport, driver’s licence
  • Bank details for funding purposes
  • Investment objectives and experience details

Final verdict


  • Brokerage fees are very low. Interactive Brokers fees are among the lowest on the market.
  • Extensive range of trading options. Offers a broad selection of order types including market, stop, stop/loss and bracket orders when trading shares.
  • Ibot feature. The trading platform includes an easy-to-use chat-bot with voice activation that responds quickly to market and company queries and can even place orders for you.
  • All products in one account. You can trade Australian stocks, global stocks, CFDs and forex all from the one account.


  • This isn’t for new investors. The set-up is more complicated than many retail platforms because it’s geared towards professional or active traders.
  • Minimum deposit of $2,000 required.
  • It’s a US-targeted platform. You may need to scroll through a lot of US data to get to the information you want and many of the features advertised are for US clients only.
  • The fee structure is complicated. While IB has some of the lowest fees on the market, there are additional costs that aren’t immediately obvious, such as the tiered inactivity fee.

IB share trading account frequently asked questions

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