Top 6 Low-Cost ETF Stocks & Shares ISAs in the UK (2026 Edition)
Compare the cheapest ISA platforms for 2026, including Robinhood's new UK launch.
Verified Mar 2026
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Top 6 Low-Cost ETF Stocks & Shares ISAs in the UK (2026 Edition)
Last Updated: March 2026 | By Referral Links UK
Embarking on a rewarding investment journey shouldn’t mean digging deep into your pockets. As we enter 2026, the UK investment landscape has shifted dramatically.
Some old favourites (like Vanguard) have become surprisingly expensive for smaller portfolios, while challengers — including Robinhood’s new UK launch — have smashed barriers to offer truly commission-free investing. Below are the top 6 affordable platforms making waves in 2026, including the best referral bonuses you can claim today.
Stocks & Shares ISA Platform Fees
Platform fees are charged by the provider for holding your investments. In 2026, you shouldn’t be paying high fees just to have an account.
1. Trading 212 – The All-Rounder
Best Value- ISA Fee: FREE
- Investing Commission: £0
- FX Fee: 0.15%
- Best For: US Stocks, UK Shares & ETFs
Trading 212 remains the gold standard for most investors in 2026. With zero platform fees, zero ISA fees, and over 12,000 instruments, it is perfect for portfolios of any size. The 0.15% FX fee is among the lowest in the industry. Note: debit card or Apple/Google Pay deposits cost 0.7% after a free £2,000 threshold — bank transfers are free.
*Order the free 212 Card and make 3 purchases of £5+. Capital at risk.
2. Robinhood UK – The New Challenger
New to UK- ISA Fee: FREE
- Investing Commission: £0
- FX Fee: 0.10% (lowest in UK)
- Best For: US Stocks (incl. $STRC, $MSTR preferred shares)
Robinhood launched in the UK in late 2025 and has quickly become a serious contender. Their Stocks & Shares ISA charges no platform fees and no commission, with a market-leading 0.10% FX fee — the lowest of any UK platform for US stocks. They offer around 5,000 US-listed stocks and ADRs, including fractional shares.
Robinhood is currently offering a 2% cash bonus on new ISA contributions made before 5th April 2026 (you must hold for 12 months to keep the full bonus). They also list preferred stocks like $STRC (Strategy/MicroStrategy preferred shares) — one of the few UK-accessible platforms to do so, which is attracting investors looking for high-yield Bitcoin-linked exposure.
Note: Robinhood UK currently only offers US-listed stocks — no UK shares or ETFs listed on the London Stock Exchange. The FX fee rises to 0.30% for conversions on Friday evenings.
*Sign up and deposit via referral link. Capital at risk.
3. InvestEngine – The ETF Specialist
Best for Passive Investing- ISA Fee: FREE (for DIY portfolios)
- Investing Commission: £0
- Minimum Deposit: £100
- Best For: Index Funds (ETFs) Only
If you only want to invest in index funds (ETFs) and don’t care about individual company stocks, this is unbeatable. They charge no platform fees for DIY ISAs and even their SIPP (Pension) is fee-free. It is a streamlined, low-cost machine.
InvestEngine currently offers a tiered welcome bonus of £25 to £5,000 when you top up or transfer in. For example, add £5,000 and get £25; reach £20,000 and earn £110 total. You must remain invested for at least 12 months to keep the bonus.
*When you invest at least £100. T&Cs apply.
4. Freetrade – The Comeback Kid
Best User Experience- ISA Fee: FREE (on Basic Plan)
- Investing Commission: £0
- FX Fee: 0.99% (Basic Plan)
- Best For: UK Stocks & Beginners
As of January 2026, Freetrade now includes the ISA, SIPP, mutual funds, gilts, and ready-made portfolios in their free Basic plan — a major change from the old £5.99/month ISA fee. The app is clean and easy to use, with 7,000+ stocks, funds, and ETFs. Note: The Basic plan charges a 0.99% FX fee on foreign (US) stocks, which is significantly higher than Trading 212 (0.15%) or Robinhood (0.10%). For UK shares and ETFs, it is excellent value.
*Requires a £50 deposit. Capital at risk.
5. AJ Bell Dodl
Fee-Free ISA Offer- ISA Fee: 0.15% p.a. (min £1/month) — FREE for 12 months if you add £1,000 before 30 April 2026
- Investing Commission: £0
- FX Fee: up to 0.75%
- Best For: Those who want a big, trusted brand name
Dodl is AJ Bell’s app-only platform. It normally charges 0.15% (minimum £1/month), but they are currently running a fee-free ISA for 12 months for anyone who adds £1,000 before 30 April 2026. After the promotional period, the standard 0.15% fee applies. The FX fee of up to 0.75% on US shares makes it pricier than Trading 212 or Robinhood for American stocks.
6. Important: Vanguard UK Fee Warning
Vanguard was once the default choice for beginners. However, their fee update introduced a £4 monthly minimum fee (£48/year) for portfolios under roughly £32,000. The maximum annual charge is capped at £375.
The Maths: If you have £1,000 invested, paying £4/month (£48/year) equals a massive 4.8% fee. Compare this to InvestEngine, Trading 212, or Robinhood which would cost £0. Vanguard remains a solid choice for larger portfolios (over £32k) where the 0.15% fee is competitive, but small investors should look elsewhere.
Note: The £4 minimum does not apply to Junior ISAs or Vanguard Managed ISAs.
Cheapest Passive Tracker ETFs (2026)
It’s not just the platform fee that matters — it’s the fund fee (OCF). Price wars have driven these down significantly. Here are the current cost leaders:
| Category | Winner | Cost (OCF) |
|---|---|---|
| S&P 500 (USA) | SPDR S&P 500 UCITS ETF (Acc) | 0.03% |
| Developed World | Amundi Prime Global | 0.05% |
| All-World (inc Emerging) | Amundi Prime All Country World | 0.07% |
*Note: Tickers vary by platform. For the S&P 500, look for SPXL (USD) or SPX5 (GBP). The Amundi All Country (0.07%) is significantly cheaper than the popular Vanguard equivalent (0.22%).
Can I Buy $STRC in the UK?
Yes. $STRC (Strategy Inc. preferred stock, formerly MicroStrategy) is available on Robinhood UK. This is one of very few UK-accessible platforms that lists Strategy’s preferred shares, including STRC, STRD, STRF, and STRK.
STRC is a perpetual preferred stock that currently pays an 11.50% annual dividend, paid monthly in cash. The dividend rate adjusts monthly to keep the price near its $100 par value. It is popular among investors looking for high-yield, Bitcoin-linked exposure without directly holding BTC.
Important: Preferred stocks carry significant risks. The dividend rate can change, and the share price is influenced by Bitcoin volatility and Strategy’s financial health. A 30% US tax withholding applies to dividends for UK residents. This is not financial advice — do your own research. Capital at risk.
Summary: Which ISA Should You Choose?
In 2026, you generally shouldn’t pay a trading fee. "Old school" brokers like Hargreaves Lansdown still charge £11.95 per trade, which eats into your returns.
- For the lowest fees overall: Trading 212 or InvestEngine.
- For US stocks with the lowest FX fee: Robinhood UK (0.10% FX — cheapest in the UK).
- For buying $STRC or Strategy preferred shares: Robinhood UK (one of the only UK platforms listing them).
- For a beautiful app experience: Freetrade (stick to UK stocks/ETFs to avoid high FX fees).
- For small portfolios (<£32k): Avoid Vanguard Direct due to the £4/mo fee.