- Good Money Guide experts highlight Interactive Investor as a strong option for index fund investing, noting its extensive selection of funds and a flat-fee pricing model that benefits larger portfolios. The platform is praised for its user-friendly design, although some users find the app somewhat basic. Customer support receives positive remarks, though email responses may be slower than desired.
- Across 1125 user reviews on Good Money Guide, averaging 4.3/5, customers frequently commend the platform's wide range of investment options and the clarity of its fee structure, particularly for active traders. However, some users express dissatisfaction with high fees on foreign transactions and the platform's complexity for certain tasks. Overall, the reliability of the service and helpful customer support are recurring positive themes.
interactive investor Index Fund Investing Expert rating
Our expert rating is the average of the areas listed here, each scored out of 5 by our team.Our experts have rated interactive investor Index Fund Investing across five key areas of our review framework.
- Pricing4.5
- Market Access4.5
- Platform & Apps4.5
- Customer Service4.5
- Research & Analysis5.0
Pros
- Wide range of index funds available
- Flat-fee structure can be cost effective
- £1 minimum deposit
- Great Index Fund screener tools
Cons
- Flat-fee structure not ideal for small accounts
- App is a little basic
- High FX fee on 0.75% unless on a premium plan
See full expert review
Our verdict
Interactive Investor offer a wide range of index tracker funds. A good choice for large index fund portfolios, as they offer good coverage and the fixed-fee model means that the bigger your account size gets, your costs stay the same. You can either pick your own or choose from some featured funds from their Super 60 investment list.
Capital at risk.
Is interactive investor good for buying index funds in the UK?
Interactive Investor is a sound choice for those seeking access to a broad range of index funds and a flat-fee structure. For those with large portfolios, it can be a very cost-effective platform.
Market Access: Interactive Investor offers access to hundreds of standard index funds and thousands of index ETFs.
Pricing: With this platform, there are three different fee plans:
- Core (£5.99 per month): fund and ETF trades are £3.99 per trade
- Plus (£14.99 per month): fund trades are £1.49 while ETFs are £3.99 per trade
- Premium (£39.99 per month): fund trades are free while ETFs are £2.99 per trade
App & Platform: Interactive Investor’s platform and app are well designed and offer a clean interface for long-term investors looking to track portfolios and execute trades. However, some users find the app a little basic.
Customer Service: Interactive Investor scores well for customer support. However, while the phone team is generally knowledgeable and helpful, email support can be a little slow.
Research & Analysis: On its website, Interactive Investor has a Research Hub which offers analysis and tools designed to help investors make better decisions. It also offers a Highly Rated Funds tool, to help investors build their portfolios.

Customer reviews for interactive investor
Customer ratings come from reviews left on this site. Every review is read and approved before it is published.Based on 1,125 reviews
- Excellent51%
- Very good33%
- Basic10%
- Poor4%
- Bad2%
Read customer reviews
Missing Funds
My Sipp pension funds have been missing for two weeks, the company do not seem to care and can not be bothered to even return my calls.
Useless and expensive
Useless and expensive. High fees, which will continue to increase, for rubbish service. They will tell you " you can't do that online, you need to phone". Then when you find an opportunity to phone within their limited opening times, they will tell you "you can't do that on the phone, you need to do it online", then when you do it online you will wait for four days and still won't receive a response. Then you'll process a transaction and it will say it will complete by 14:00 tomorrow, but when you submit the request, it will say that it will complete three days later. There are many other cheaper or free trading platforms, use them not Interactive Investor.
Must pay fees from ISA, not SIPP
Sipp for several years. now added 'free'ISA only to find they insist on all chagres being taken from ISA, not Sipp as before
Sipp is taxable, ISA is tax free. why do we have to pay charges out of ISA?
Increased account fees.
I've been with ii for some years now, and have seen their account fees rise from £9.99 to £14.99 as of February 2026. However, what is disturbing, is that since Brexit they've introduced an additional non UK resident charge of £5.99. These year on year increases are becoming a worrying trend.
Aside from this, I have found them to be a good broker, with an easy to use web site and pleasantly helpful staff. Would recommend with a caution regarding fees.
Not so Clunky
I also amended a drawdown amount this month. an entirely automated process but admittedly hard to find. (ref Albert's comment). The new fee structure from February is excellent and improves the previous costly FX charges.
Clunky platform
I recently tried to amend the monthly drawdown amount from my II SIPP. I expected to find a simple option on their secure platform. Instead I was taken through multiple web pages and eventually asked to complete a pdf form that their site linked to and submit using their secure messaging option. I did this only to be told that the form was out of date and I would need to complete a different form. This new form requires the user to complete several text boxes some of which do not retain the election once the document is saved. It also requires a signature meaning the user must either have electronic signing facilities or a printer and scanner. It's submitted via their secure messaging platform so why require a signature? This whole process should be automated.
Investments in other currencies
While the platform for basic usage is a little more expensive than the competition, it offers a unique service of investment (including funds) in currency other than sterling.
efficient transfer. helpful customer service
efficient transfer. helpful customer service
Good range
Great range of different accounts and a decent fee structure, especially if you make a lot of trades, and will definitely save money against some of the traditional investment providers/brokers.
Excellent.
Straight forward and easy to work with. Helpful people.
Reliable service and easy to use platform
Have been with Interactive Investor for many years and have found the service to be very reliable. The online platform is straigtforward to use and the customer support team has always been helpful.
average
Commission for UK stocks when added to the monthly fee is not as cheap as first appears. For overseas transactions the fx fees are large and frankly a rip off.
Customer service is painful as they often ask for NI number which not many would know. Some customer representatives seem to think they are quiz masters rather than customer service reps, so I try to avoid the phone.
Great platform
Interactive Investor stands out as a reliable platform for serious investors who value a flat-fee structure and a wealth of investment options. While it may not be the best fit for beginners or those with smaller portfolios, its robust tools and transparency make it a compelling choice for experienced investors.
STABLE PLATFORM WITH A GOOD INTERFACE AND GREAT CUSTOMER SERVICE
I have been with Interactive Investor for over a decade and highly recommend the service. The fixed fee pricing for high volume trading is excellent value.
Opening an account
Opening an account is very easy and the interface is easy to navigate
Excellent functionality, good value
I’ve been a very satisfied ii customer for many years now. They have a great range of accounts (trading, ISA, SIPP and JISA’s) all for a single monthly fee. Communication with the company is excellent when needed.
Lots of simple features, easy to use
Lots of simple features, easy to get the handle on and use ongoing. Access instant quotes and get a simple to understand historical record of transtions. Very good phone support.
Platform is good but charts are poor
I use II for most of my ISA and some of my SIPP investments. Overall the platform is excellent, fees are pretty good, however I find charts quite poor, can be glitchy when switching through different timelines, for that reason alone I keep other platform accounts where better charts are available.
Reasonable fees
There is good information on shares but they used to have brokers' views and I wish they would bring that back.
Very efficient user friendly investment platform
The fees are among the lowest around and it has a very informative platform with many very good analysis from several analysts
Yes, you can invest in a huge range of index funds (including Vanguard funds) when you have a GIA, ISA or SIPP account with Interactive Investor.
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Richard is the founder of the Good Money Guide (formerly Good Broker Guide), one of the original investment comparison sites established in 2015. With a career spanning two decades as a broker, he brings extensive expertise and knowledge to the financial landscape.
Having worked as a broker at Investors Intelligence and a multi-asset derivatives broker at MF Global (Man Financial), Richard has acquired substantial experience in the industry. His career began as a private client stockbroker at Walker Crips and Phillip Securities (now King and Shaxson), following internships on the NYMEX oil trading floor in New York and London IPE in 2001 and 2000.
Richard’s contributions and expertise have been recognized by respected publications such as The Sunday Times, BusinessInsider, Yahoo Finance, BusinessNews.org.uk, Master Investor, Wealth Briefing, iNews, and The FT, among many others.
Under Richard’s leadership, the Good Money Guide has evolved into a valuable destination for comprehensive information and expert guidance, specialising in trading, investment, and currency exchange. His commitment to delivering high-quality insights has solidified the Good Money Guide’s standing as a well-respected resource for both customers and industry colleagues.



