Best Stocks and Shares ISA UK 2026: 8 Platforms Ranked

Looking for the best stocks and shares ISA in the UK? I hold an AJ Bell Stocks and shares ISA and have done for around six to seven years. This post ranks 8 platforms based on my own experience with the platform I actually use and publicly available information for the rest.

One thing to be clear about from the start: the value of investments can go down as well as up. A stocks and shares ISA is not a savings account. Only invest money you can afford to leave for the medium to long term.

My Top Pick: AJ Bell

For most UK investors who want a full-service platform with phone support and a wide range of shares and funds, AJ Bell is my honest first recommendation.

If you open an eligible AJ Bell account now, you can get a £100 Amazon.co.uk gift card through my referral link when you fund a combined £10,000 within 120 days. There is no code to type:

Open AJ Bell with the £100 refer-a-friend offer

Runner-up for purely low-cost passive portfolios: Vanguard, if you are happy holding only Vanguard funds and ETFs and do not need a phone number to call.

How I Evaluated These Platforms

I am not a financial journalist cycling through demos every six months. I use AJ Bell for my own ISA, so that section comes from real experience. For the other seven platforms, I have reviewed published pricing pages, Trustpilot reviews and independent UK sources.

The criteria I weighted most:

• Annual platform fee at different portfolio sizes from £10,000 to £100,000
• Dealing charges per trade for shares and funds
• Range: can you hold shares, investment trusts and ETFs alongside funds, or are you limited to one provider's range?
• Support: is there a phone number you can actually call?
• UK regulatory standing and FSCS eligibility
• Sign-up offer, where one exists

Quick Comparison: 8 UK Stocks and Shares ISAs

Fees correct as of August 2026. Check each provider's charges page before investing.

Worked Fee Table: Annual Platform Cost at Different Portfolio Sizes

This is the table most competitors do not publish. Here is what you pay in annual platform fees at four common portfolio sizes, based on each platform's published rates. Dealing charges are separate and excluded. Assumes a fund or ETF portfolio rather than individual shares.

Interactive Investor's Core plan (£5.99 a month, up to £100,000) is cheaper than AJ Bell on funds from about £29,000 and cheaper than Hargreaves Lansdown from about £21,000. Above £100,000 it moves to the Plus plan at £14.99 a month (£179.88 a year). If you hold mostly shares and ETFs, AJ Bell's £42 a year cap beats ii at every size. Trading 212 and InvestEngine have no platform fee at any size. Vanguard's £48 minimum means the percentage kicks in only above around £32,000. All fees are approximate and subject to change; check each provider's current charges page.

The 8 Platforms Ranked

1. AJ Bell: Best All-Rounder for Entrepreneurs

I have personally used AJ Bell for around six to seven years.

AJ Bell is a FTSE 250-listed UK investment platform that has been running since 1995. You can hold shares, investment trusts, ETFs and funds inside an ISA, SIPP, Lifetime ISA or Dealing account. It is a full-service platform, not a stripped-down trading app.

Why it is on this list:

• The phone support is the best I have used on any investment platform. Calls get answered by real people in what feels like under 30 seconds, which matters when you are dealing with your own money
• The app is clear and does not get in the way. Buying and selling shares takes seconds and I have never struggled to find what I need
• The 0.25% platform fee on funds, with the ISA charge on shares and ETFs capped at £3.50 a month, is competitive for a full-service platform
• You can hold a Stocks and shares ISA, SIPP and Dealing account in the same place, which simplifies life for self-employed people and company directors

What is worth knowing:

• AJ Bell is not the cheapest if all you want is a simple ETF portfolio. Free platforms undercut it on headline fees
• When buying by pound value rather than number of shares, the minimum order amount is not always clearly displayed in the app, so you may need to adjust your entry amount before an order goes through
• On a fund portfolio above about £29,000, Interactive Investor's flat fee works out cheaper. AJ Bell's £42 cap on shares and ETFs still beats it at every size

Sign-up offer: Open and fund a combined £10,000 within 120 days via my referral link and we both receive a £100 Amazon.co.uk gift card.

Read my full AJ Bell referral guide, my honest 7-year review of AJ Bell, or go straight to AJ Bell with the £100 offer.

2. Hargreaves Lansdown: Best for Guidance and UK Dividend Income

I held a Hargreaves Lansdown Stocks and Shares ISA before I moved to AJ Bell. The phone support was fab and dealing with HL was easy every time. I moved because AJ Bell's fees were slightly lower, which is still true, and the difference was minor. My HL account is still open with £0 in it and I still recommend HL. I have never paid for HL's financial advice, so that part is not reviewed here. My full Hargreaves Lansdown review has the detail.

Hargreaves Lansdown has been running for over 45 years and says it has more than 2 million clients.

Why it is on this list:

• The Wealth Shortlist is a curated fund list many investors find useful for picking funds without starting from scratch
• Phone support from a Bristol-based team, which in my experience was fab
• Paid financial advice is available from the same firm if you want it later
• The account range covers ISA, SIPP, Junior ISA, Lifetime ISA and Dealing accounts
• The research section and fund factsheets are among the most detailed available to UK retail investors

What is worth knowing:

• The 0.35% account charge on funds is higher than AJ Bell's 0.25%. On a £50,000 fund portfolio, that is £175 versus £125 a year, and the gap adds up over two decades
• Shares and ETFs are capped at £12.50 a month at HL against £3.50 at AJ Bell, and share deals cost £6.95 against AJ Bell's £5
• I could not find a live HL refer a friend offer as of October 2026, so there is no sign-up bonus to claim
• Evidence from independent sources consistently shows that picking individual active funds tends to underperform index tracking over long periods, so the value of the Wealth Shortlist is a matter of debate

Best for: investors who want strong phone support and the option of paid advice from the same firm, and are happy to pay a little more than AJ Bell for it.

HL has no live referral offer, so there is no link to claim here. If you want to open an account, go direct to Hargreaves Lansdown's Stocks and Shares ISA page, or read my Hargreaves Lansdown review first.

3. Vanguard: Best for Low-Cost Passive and Index Investing

I have not personally used Vanguard. This section is based on published documentation, Trustpilot reviews and publicly available information.

Vanguard is the asset management firm behind some of the world's most widely held index funds. Its UK direct platform lets you invest in Vanguard funds and ETFs at 0.15% a year, with a minimum charge of £4 a month (so £48 a year minimum).

Why it is on this list:

• 0.15% is the lowest percentage fee among the established traditional platforms
• The range of low-cost Vanguard index funds and ETFs covers most major world markets, which is all most passive investors need
• The platform is deliberately simple to use

What is worth knowing:

• You can only hold Vanguard products. There are no individual shares, no investment trusts from other providers and no non-Vanguard ETFs
• The £48 a year minimum means Vanguard is not as cheap as it first appears for small portfolios. The percentage fee only beats the minimum above around £32,000
• Customer support is primarily online, without the phone access that AJ Bell and Hargreaves Lansdown offer

Best for: investors who want a pure low-cost index portfolio and have no need to hold individual shares or non-Vanguard funds.

4. Trading 212: Best for Zero Platform Fee

I have not personally used Trading 212. This section is based on published documentation, Trustpilot reviews and publicly available information.

Trading 212 charges no platform fee and no dealing fee on its stocks and shares ISA, making it the lowest-cost choice for active share investors and ETF holders.

Why it is on this list:

• Zero platform fee at every portfolio size
• Zero dealing charges for shares and ETFs
• A wide range of international shares, ETFs and fractional shares
• The app is consistently well-reviewed by users

What is worth knowing:

• There is a 0.15% currency conversion fee on non-GBP assets, which adds up if you hold many international shares
• Trading 212 is a newer platform than AJ Bell or Hargreaves Lansdown and does not offer traditional phone support
• Trading 212 is FCA-regulated. Check the FCA Register at register.fca.org.uk for its current details before opening an account

Best for: cost-conscious investors who are comfortable self-directing online, without the need for phone support.

5. InvestEngine: Best for ETF-Only Portfolios

I have not personally used InvestEngine. This section is based on published documentation, Trustpilot reviews and publicly available information.

InvestEngine offers a zero-fee stocks and shares ISA on its DIY (self-directed) plan, which covers ETFs only. Managed portfolio services cost 0.25% per year.

Why it is on this list:

• No platform fee on the DIY plan
• Clean app with a focused ETF range
• Fractional ETF investing makes it easy to start with smaller amounts

What is worth knowing:

• ETFs only on the DIY plan. There are no individual shares, no investment trusts and no other managed funds outside InvestEngine's own managed portfolios
• The platform launched in 2019, so it has a shorter track record than the established players

Best for: investors who want a pure low-cost ETF portfolio in a simple wrapper.

6. Interactive Investor: Best for Large Portfolios on a Flat Fee

I have not personally used Interactive Investor. This section is based on published documentation, Trustpilot reviews and publicly available information.

Interactive Investor charges a flat monthly fee rather than a percentage of your portfolio. On the Core plan, for portfolios up to £100,000, that is £5.99 a month, or £71.88 a year. Above £100,000 you move to the Plus plan at £14.99 a month.

Why it is on this list:

• On a fund portfolio, the flat fee works out cheaper than AJ Bell's 0.25% from about £29,000 and cheaper than Hargreaves Lansdown's 0.35% from about £21,000
• Interactive Investor is one of the UK's larger investment platforms with a long track record
• Regular monthly investing is free on every plan, which suits buy-and-hold investors

What is worth knowing:

• Below about £29,000 in funds, the flat fee costs more than AJ Bell's percentage charge, and one-off deals cost £3.99 each on the Core plan with no free trades
• If you mostly hold shares and ETFs, AJ Bell's £42 a year cap is cheaper than ii at any size
• Interactive Investor offers a curated fund list but it comes with a subscription charge on some plans. Check the current plan options on their site

Best for: investors with fund portfolios above about £30,000 who want a predictable flat fee rather than a rising percentage charge.

7. Fidelity: Best for a Wide Fund Range

I have not personally used Fidelity. This section is based on published documentation, Trustpilot reviews and publicly available information.

Fidelity is one of the world's largest fund managers. Its UK direct platform offers a wide selection from third-party fund managers alongside Fidelity's own range.

Why it is on this list:

• The platform fee of 0.35% on funds is in the middle of the market
• Fund dealing is free; share dealing is £7.50
• The fund range is one of the largest available to UK retail investors, including many active funds not available on Vanguard

What is worth knowing:

• 0.35% is more expensive than AJ Bell (0.25%) and significantly higher than Vanguard (0.15%)
• For investors primarily interested in index funds, the wider fund range is less of an advantage

Best for: investors who want access to a broad range of active and passive funds and are willing to pay a slightly higher platform fee.

8. Freetrade: Best for Mobile-First Investors Starting Small

I have not personally used Freetrade. This section is based on published documentation, Trustpilot reviews and publicly available information.

Freetrade is a mobile-first stockbroker that charges no dealing fees on shares and ETFs. The stocks and shares ISA is available on a paid plan, around £5.99 a month as of August 2026, so roughly £72 a year.

Why it is on this list:

• No dealing charges on shares and ETFs
• Clean, simple app suited to investors new to the stock market
• Fractional shares available so you can invest small amounts in higher-priced stocks

What is worth knowing:

• The ISA requires a paid subscription, so the effective annual cost is around £72 regardless of portfolio size. This makes it less competitive once your balance grows
• Freetrade went through a difficult financial period in 2024 before being acquired. Verify the current ownership and regulatory status before opening an account
• Customer support is in-app and online only

Best for: mobile-first investors starting with smaller amounts who plan to trade shares and ETFs frequently.

How to Choose: A Decision Guide

If you want a full-service platform with phone support: AJ Bell. I use it personally and the combination of reasonable fees, a wide fund and share range, and genuine phone support is hard to beat.

If you want the lowest possible fees on a passive fund portfolio: Vanguard at 0.15% for most portfolio sizes. Trading 212 and InvestEngine both offer zero platform fees if you are comfortable self-directing entirely online.

If your fund portfolio is above about £30,000: Interactive Investor's flat fee of £5.99 a month starts to undercut AJ Bell and Hargreaves Lansdown. Run the numbers using the fee table above with your actual balance.

If you are not sure yet and want to start small: Trading 212 has no fees and no minimum balance, so you can begin investing and move to a better-suited platform later as your needs become clearer.

The Self-Employed and Entrepreneur Angle

If you run your own business, the stocks and shares ISA question often comes alongside a pension question. Here is a quick framing:

Choose a stocks and shares ISA if:

• You want flexible access to the money before retirement age without any restrictions
• You are investing for a goal within the next 5 to 15 years
• You have already used your pension allowance for the tax year

Choose a SIPP if:

• You pay 40% income tax and want to claim relief at that rate on contributions
• You take salary through your own company and want to make employer contributions, which can be an allowable business expense
• You are saving primarily for retirement and do not need access until you are 57 (the minimum pension access age rises from 55 to 57 in 2028)

Most self-employed people I know end up doing both: a SIPP for retirement saving and an ISA for medium-term goals and flexible access. AJ Bell lets you hold a Stocks and shares ISA and a SIPP in the same account login, which simplifies the admin.

For more on managing your business finances alongside your investments, read my guide to best UK business bank accounts 2026 or the decision guide on how to choose a UK business bank account.

What Is Changing With ISAs in 2027?

Two developments are worth knowing about if you are planning ahead.

Anti-circumvention rules (expected 2027/28). The government published a factsheet in 2026 announcing plans to close arrangements some investors used to subscribe to multiple ISAs in ways that exceeded the £20,000 annual limit through technical loopholes. If you hold ISAs across several providers within the normal allowance, this should not affect you. The regulations are expected to apply from the 2027/28 tax year.

Lifetime ISA consultation (August 2026). The government opened a consultation in August 2026 about the future of the Lifetime ISA, including the 25% withdrawal penalty for money not used for a first home purchase or retirement. If you are considering opening a LISA, check gov.uk for the outcome of that consultation before you do.

Neither development should affect straightforward stocks and shares ISA investing within the £20,000 annual allowance.

Frequently Asked Questions

What is the best stocks and shares ISA for beginners UK?

For beginners who want a no-fee start, Trading 212 and InvestEngine both charge no platform fee and no dealing charges. Vanguard is the cheapest of the established percentage-fee platforms at 0.15% per year. I have personally used AJ Bell for six to seven years and find the app clear enough for anyone starting out, though it is not the cheapest option.

Is a stocks and shares ISA worth it in 2026?

Yes, for most UK investors with a five-year or longer horizon. A stocks and shares ISA lets investments grow free of UK income tax and capital gains tax. The 2026/27 allowance is £20,000. The main caveat is market risk: the value of investments can fall as well as rise.

Which is the cheapest stocks and shares ISA in the UK?

Trading 212 and InvestEngine both charge no platform fee. Vanguard charges 0.15% with a £48 minimum per year. On a fund portfolio above about £29,000, Interactive Investor's flat fee of £5.99 a month (£71.88 a year) is cheaper than AJ Bell, and above about £21,000 it is cheaper than Hargreaves Lansdown.

Is AJ Bell better than Hargreaves Lansdown?

For most investors, AJ Bell offers better value at 0.25% versus Hargreaves Lansdown's 0.35% on funds, with cheaper share deals too. I have used both: HL's phone support was fab, AJ Bell's has been even better, and I moved to AJ Bell for the lower fees. HL suits you better if you want paid advice from the same firm. More in my Hargreaves Lansdown review.

Can I transfer a stocks and shares ISA?

Yes. You can transfer an ISA to another provider without losing the tax-free status or the transfer counting against the current year's allowance. Check exit fees with your current provider and whether the new platform accepts in-specie transfers before you start.

What is the ISA allowance for 2026/27?

The ISA allowance for 2026/27 is £20,000. The Lifetime ISA allowance is £4,000, which counts within that £20,000 limit. The allowance resets each 6 April. If you are opening an ISA before the 5 April deadline, my AJ Bell referral code guide shows how the £100 voucher works either side of it.

Ready to Open Your Stocks and Shares ISA?

My personal recommendation is AJ Bell. I have held my Stocks and shares ISA there for around six to seven years, the phone support is the best I have used anywhere, and the platform handles everything from a simple S&P 500 tracker to individual shares in one account.

If you open and fund an eligible AJ Bell account with a combined £10,000 within 120 days, we both receive a £100 Amazon.co.uk gift card. There is no code to type:

Open AJ Bell with the £100 refer-a-friend offer

Remember: the value of investments can go down as well as up. Only invest money you can afford to leave for the medium to long term.

Looking for more financial guides?

• AJ Bell referral code: the full AJ Bell review and the £100 Amazon voucher offer
• Best UK business bank accounts 2026: ranked picks for founders and self-employed people
• How to choose a UK business bank account: a decision guide for sole traders and directors
• Wise in the UK: international transfers at the mid-market exchange rate for business owners who pay people abroad
• Tide referral code: £100 free when you open a UK business account

Mike McDonnell. I write The AI Growth Toolkit, a free Sunday email on making more profit with AI, with the setups I use in my own business explained in plain English.