Home › Best Stocks & Shares ISA UK
The Stocks and Shares ISA is the most powerful tax-free investing wrapper available to UK savers. £20,000 of contributions a year, no capital gains tax, no dividend tax on growth. The choice of provider materially affects long-term outcomes. Four platforms dominate — Trading 212, InvestEngine, AJ Bell, and Hargreaves Lansdown. Here is how they compare.
Updated for the 2026/27 UK tax year. ISA allowance: £20,000.
For new investors and lower balances: Trading 212 — commission-free, fractional shares, £1 minimum, no platform fee.
For ETF-focused investing: InvestEngine — 0% DIY fee, broad ETF range, optional managed portfolios.
For broad DIY investing across funds, shares and ITs: AJ Bell — 0.25% custody fee, wide product range, capped fees on shares.
For active investors who value research and service: Hargreaves Lansdown — premium platform, gold-standard research, the most extensive UK retail investing toolkit.
| Platform | Style | Platform fee | Investment range | Best for |
|---|---|---|---|---|
| Trading 212 | App-first, DIY | 0% | 5,000+ stocks and ETFs, fractional shares | New investors; commission-free trading |
| InvestEngine | ETF specialist | 0% (DIY) / 0.25% (managed) | 700+ ETFs only | ETF-focused investors; managed portfolios |
| AJ Bell | Full DIY platform | 0.25% (capped on shares) | Funds, ETFs, ITs, UK and US shares, bonds | DIY investors with broad ambitions |
| Hargreaves Lansdown | Premium DIY platform | 0.45% (tiered) | 3,000+ funds, ETFs, ITs, UK and global shares | Active investors wanting deep research |
Verify current fees, products, and minimums on each provider's site. Fees change.
Four criteria, weighted by long-term outcome impact: total cost of holding (platform + dealing + product fees compound dramatically over 20+ years), investment range (more options = better portfolio construction), platform experience and quality (matters when you've held an account for a decade), and educational resources for newer investors. See our review methodology.
Trading 212 is the dominant app-first commission-free broker in the UK and across Europe. The Stocks and Shares ISA carries a 0% platform fee, commission-free trading on 5,000+ stocks and ETFs, fractional shares from as little as £1, and an interest-paying cash balance for uninvested funds.
For new investors building a portfolio with small monthly contributions, Trading 212 is hard to beat on cost. The 0% platform fee means more of your contributions actually invest. Fractional shares let you buy a portion of expensive shares (Berkshire Hathaway A, Booking, Microsoft) that would otherwise need hundreds of pounds per single share.
The "Pies" feature — Trading 212's term for custom portfolios — automates allocation across multiple shares with a single recurring contribution. This is genuinely useful for systematic monthly investing.
InvestEngine is the UK's ETF specialist. Their proposition is simple: 700+ ETFs, no commissions, 0% platform fee on the DIY service (you pay only the underlying ETF management fees, which are minimal on global trackers). For investors who want low-cost passive exposure across global markets, this structure is genuinely difficult to beat.
An ETF-only platform with no platform fee is unusual. The total cost of investing through InvestEngine on a typical global tracker portfolio is roughly 0.15–0.30% per year — paid to the ETF provider, not the platform. Compared to traditional fund platforms charging 0.25–0.45% custody plus fund fees of 0.5%+, the long-term cost difference compounds materially.
For investors who want managed exposure without picking ETFs, InvestEngine offers managed portfolios at 0.25% management fee. Cheaper than Nutmeg or Moneyfarm, with the trade-off of less brand recognition.
AJ Bell is the standard UK answer for DIY investors who want a broad investment universe — funds, ETFs, investment trusts, individual shares (UK and US), bonds — in one platform with a competitive fee structure. The Stocks and Shares ISA carries a 0.25% custody fee, capped on shares (£3.50/month).
Range and reliability. AJ Bell's investment universe is broad enough to construct virtually any portfolio strategy a UK retail investor would want: passive global trackers, dividend portfolios, individual share picking, bond ladders, ITs for specialist exposure. The capped fee on shares (£3.50/month) makes it competitive for investors who hold a meaningful share allocation.
The platform has been around since 1995, is FTSE-listed, and is one of the most-used platforms for UK retail investors. The research tools, market commentary, and customer service are all genuinely useful — and matter when you're holding the same wrapper for 20+ years.
Hargreaves Lansdown is the premium UK retail investment platform. The Stocks and Shares ISA carries a higher fee than the competition (0.45% custody on funds, with tiered reductions above £250k), but the proposition wraps in the most extensive research, customer service, and educational content available in UK retail investing.
HL's research arm is the gold standard for UK retail investors — analyst notes, fund commentary, the Wealth Shortlist of recommended funds. For active investors who use that research, HL pays for itself many times over.
The platform is also a one-stop shop: ISA, SIPP, Lifetime ISA, Junior ISA, savings account, share dealing — all under one login with one customer relationship. For higher-balance investors consolidating accounts, HL is the most natural choice.
For new and small-balance investors building a portfolio: Trading 212. 0% platform fee, commission-free trading, fractional shares — the cost structure is hard to beat for the first £20,000 of investing.
For ETF-focused passive investors: InvestEngine. 0% platform fee, broad ETF range, optional managed portfolios at 0.25%.
For DIY investors who want broad investment choice across asset classes: AJ Bell. 0.25% custody, capped on shares, wide product range, long track record.
For active investors valuing research and service: Hargreaves Lansdown. Premium fee, premium platform.
Whichever route you choose, run our ISA Calculator to model long-term growth, and read Stocks & Shares ISA vs Cash ISA if you're still weighing the trade-off. New to investing? Start with Stocks and Shares ISA for Beginners.
£20,000 per tax year, which is the total annual ISA allowance across Cash, Stocks and Shares, Lifetime, and Innovative Finance ISAs combined. You can spread that £20,000 across multiple ISA types — for example £4,000 in a LISA and £16,000 in a Stocks and Shares ISA.
Yes. Inside the wrapper, all capital gains, dividends and interest are free of UK tax. You don't declare growth on your tax return. On withdrawal, the money is yours — no income tax, no capital gains tax.
Yes. Investment values rise and fall with markets. Over 5+ year horizons, broad equity markets have historically delivered positive real returns, but past performance is not a guarantee. Short-term losses are normal.
From 6 April 2024 you can pay into more than one ISA of the same type in a single tax year, provided you stay within the £20,000 total allowance. This is a recent change — earlier rules limited you to one provider per type per tax year.
HMRC contacts your providers, the excess is removed from the ISA wrapper, and any income or growth on the excess becomes taxable. Most providers monitor your contributions to prevent this happening accidentally.
Yes. ISA transfers preserve the tax-free wrapper. Always use the receiving provider's transfer-in process — withdrawing and re-depositing breaks the ISA status and counts as a new contribution against your allowance.
Tax treatment and access. A Stocks and Shares ISA is funded with post-tax money and you can withdraw at any age tax-free. A SIPP is funded with pre-tax money (basic-rate tax relief added automatically) and can only be accessed from age 55 (rising to 57 in 2028). For long-horizon retirement saving, both have a place — see SIPP vs workplace pension.
Yes, up to £85,000 per platform — covering the platform's failure (cash held with the platform, the legal arrangement of your investments). It does not cover investment losses from market movements.
Trading 212, InvestEngine, AJ Bell and HL compared.
Open comparison →Head-to-head: fees, products, who each suits.
Read comparison →Risk, growth, time horizons.
Read comparison →Step-by-step guide for first-time investors.
Read guide →Everything a first-time UK investor needs to know.
Read guide →Project ISA growth across cash and stocks.
Open calculator →This is general information, not financial advice. Pennywise Finance is not authorised by the Financial Conduct Authority. Capital is at risk when investing — your investments can fall as well as rise, and you may get back less than you invest. Past performance is not a reliable indicator of future returns. For decisions involving significant sums, consult an FCA-authorised adviser or the free MoneyHelper service.