What are the Boring Money Best Buy Awards?
The Boring Money Best Buy Awards have been running for 9 consecutive years.
They are designed to recognise the best investment platforms and providers in the UK across a range of categories - from Stocks & Shares ISAs, pensions, digital investment apps, and customer experience.
We select our winners based on an exclusive combination of our independent opinion, deep dives into technical information and over 22,000 real customer reviews.
At the heart of it all, our Best Buy Awards are designed to champion the voice of the consumer and help you make better, more informed choices about investing.
How we choose our Best For Low-Cost ISA - Funds & Shares winners
When it comes to finding the cheapest Stocks & Shares ISA for keen investors who want both funds and shares, we focus purely on the numbers. No customer feedback scores, no feature testing - just a thorough cost analysis of the best low-cost options.
We crunch the numbers across different portfolio sizes to find the cheapest providers for fund and share investing. We examine both platform fees and dealing charges, because what's cheap for fund investors might not be best value when you're also buying shares. And we don't just look at ISA providers with a token offering - to make our shortlist, platforms need to offer a solid range of mutual funds and direct share dealing.
This focused analysis helps us identify which providers genuinely offer the best ISAs for fund and share investors. Remember though - this award is purely about fund and share dealing costs. If you want the full picture including service quality and features, check out the winners of our overall Best Buy ISA 2025 award.
Best For Low-Cost ISA - Funds & Shares winners 2025
Our Best For Low-Cost ISA - Funds & Shares winners represent the cheapest ISAs for investing in funds and shares in 2025. This year's winners are:
We list providers in alphabetical order.
AJ Bell
In a nutshell
Low cost
May be complex for beginners
Good investment ideas and content
Who is AJ Bell good for?
One of the best options in the UK, this service is suited for people with a little experience, providing lots of supporting information and guidance to support learning and increasingly confident decision-making. Costs are very reasonable and the support for beginners with ambitions to learn makes it a good option for aspiring investors. Not for those who prefer to take a back seat and do the bare minimum though. In terms of charges, AJ Bell is cheap for large portfolios, with no platform fees above £500k, and relatively cheap for smaller portfolios. Plus there’s a wide range of investments to choose from.
IWeb
In a nutshell
Very cheap
Big household name provider
Broad range of choice
Who is IWeb good for?
IWeb is a good service for investors who are looking for an exceptionally low-cost option – even if that comes with a less flashy website and no mobile app. Setting up an ISA account is free, so this makes IWeb among the cheapest investment providers on the market right now. It’s geared slightly to more experienced investors who know what they’re doing but is not for those who like a good digital experience.
Moneyfarm
In a nutshell
Really easy to use
Ready-made options
This is regulated advice
Who is Moneyfarm good for?
Moneyfarm is a good option for those who want some help with investing and who value the combo of a good digital customer experience with the ability to talk to real human beings on the phone. It’s also a decent fit for those who want some choice whilst still outsourcing most of the decisions to the experts.
Which ISA is best for you?
Are you looking to open an ISA but not sure who to turn to? Check our ISA comparison table to see what's out there! Read our full reviews for information on fees and charges, investment range, real customer reviews and more.
FAQs about Stocks & Shares ISAs
From first-time investors asking "Which ISA provider is best for beginners?" to experienced traders discussing "How to maximise ISA tax benefits" – our community has the answers you're looking for. Dive into our questions archive to find out:
What's the difference between a Cash and Stocks & Shares ISA?
Should I put money in my ISA or a pension?
What type of investments can I hold in a Stocks & Shares ISA?
