If you are looking to start investing in the UK, the number of options can be overwhelming. But here is the thing: there is no single best broker for everyone. Each platform on this list is the best at something specific. Depending on what matters most to you, whether that is low fees, automation, a great interface, or access to global markets, your ideal broker could be completely different from someone else's.
All five brokers on this list are regulated by the Financial Conduct Authority (FCA), and all your funds are protected by the Financial Services Compensation Scheme (FSCS). From a safety perspective, you are in good hands with any of them.
What is a Stocks and Shares ISA?
Before diving in, a quick explanation for those new to investing in the UK. An ISA (Individual Savings Account) is a tax-efficient wrapper. You can invest up to 20,000 pounds per year, and any gains, dividends, and interest you earn inside the ISA are completely tax-free. It is one of the biggest advantages of investing in the UK, and all five brokers on this list offer one.
| Broker | Best For | Commission | FX Fee | ISA |
|---|---|---|---|---|
| Lightyear | Beginners | 0% | 0.35% | Yes (free) |
| XTB | ETF plans + high cash interest | 0%* | 0.50% | Yes (free) |
| Trading 212 | Lowest fees overall | 0% | 0.15% | Yes (free) |
| eToro | Social / copy trading | 0% | Varies by tier | Yes (via Moneyfarm) |
| Interactive Brokers | Advanced investors | Low (tiered) | 0.03% | Yes (£3/mo min.) |
*XTB: 0% commission up to €100,000 monthly turnover. 0.2% above that (min. £10).
1. Lightyear: Best for Beginners
If you have never invested before or are fairly new to it, this is where I would start. Lightyear has the cleanest and most intuitive user interface of any broker on this list. It was founded by a former employee of Wise, so they really know how to build a user-friendly product. Everything makes sense from the moment you open the app.
Key features
- Commission-free Stocks and Shares ISA with no platform fee, custody fee, or inactivity fee
- Flexible ISA, so you can withdraw and reinvest within the same tax year without losing your annual allowance
- Custom investment plans inside the ISA, where you set your own target allocation and automate recurring contributions on a weekly, bi-weekly, or monthly schedule
- Fractional shares available, with some pound-denominated ETFs buyable from as little as two pounds
- Cash ISA currently at approximately 3.75%, tracking the Bank of England rate
- FX fee of just 0.35% on the live interbank rate
The combination of a commission-free ISA plus automated plans growing tax-free is genuinely hard to beat for someone getting started.
What could be better
Lightyear is a relatively new platform, founded in 2020, so it does not have the decades-long track record of some competitors. There is currently no SIPP or pension option, no options trading, and the overall stock selection is slightly smaller compared to Interactive Brokers. But for the core investing experience, especially for beginners, it is excellent.
Try Lightyear and use code MMB to get up to 100 pounds in a fractional share or ETF. Capital is at risk and terms apply.
2. XTB: Best for ETF Plans and Cash Interest
XTB stands out for its investment plans feature. You can choose from over 1,900 ETFs, set a percentage allocation for each, and automate recurring contributions from as little as 15 pounds. If you want to build a diversified portfolio and have it run on autopilot, this is a strong option.
Key features
- Commission-free trading on stocks and ETFs up to 100,000 euros in monthly turnover
- 4% interest on uninvested cash in both the general account and the ISA, calculated daily and paid monthly
- Flexible Stocks and Shares ISA with over 8,800 stocks and ETFs
- Fractional shares from as little as 10 pounds
- Over 6,600 real stocks across 14 markets
- Publicly listed company on the Warsaw Stock Exchange, adding transparency
- Over 20 years in the industry with offices in 13+ countries including London
What could be better
The 0.5% FX conversion fee is slightly higher than some competitors. If you are buying a lot of foreign stocks, those costs can add up. The platform is also quite feature-rich, so it may take some time to learn where everything is located.
3. Trading 212: Cheapest Overall
Trading 212 is all about keeping costs as low as possible. Zero commissions on all stocks and ETFs, zero platform fee, zero custody fee. It is one of the cheapest brokers you will find in the UK.
Key features
- FX fee of just 0.15%, one of the lowest on this list
- Multi-currency accounts across 13 currencies, so you can deposit directly in US dollars and avoid the FX fee entirely on US stocks
- Pies feature for automated investing: put up to 50 stocks and ETFs into one pie, set target allocations, and use auto-invest on a daily, weekly, or monthly schedule
- Fractional shares from just 1 pound
- Massive selection of over 13,000 stocks and 2,800 ETFs
- Free Stocks and Shares ISA and Cash ISA
What could be better
Trading 212 has fewer advanced tools compared to Interactive Brokers. It is best suited for buy-and-hold investors rather than active traders. Unlike XTB, eToro, and Interactive Brokers, Trading 212 is not a publicly listed company, so there is less external scrutiny on their financials.
Sign up to Trading 212 and get a free fractional share worth up to 100 pounds, or use the code KAI inside the app.
4. eToro: Best for Social and Copy Trading
If you are interested in social investing, eToro is the only platform on this list that genuinely offers it. The standout feature is copy trading, where you can browse thousands of experienced investors on the platform, look at their track records, risk scores, and strategies, and with one click automatically replicate their trades in your own account.
Key features
- Copy trading: when they buy, you buy. When they sell, you sell. Proportional to your allocation
- Cash ISA at approximately 4.48%, one of the highest on the market at the time of recording
- Zero commission stock trading for UK residents
- Pound accounts available, so you can deposit, hold, and withdraw pounds without conversion fees on pound-denominated assets
- eToro Club tiers: Diamond members pay 0% FX fee, Platinum members get up to 50% discount
- Smart Portfolios: professionally curated theme-based investments with no management fees, starting from $500
- Over 6,200 stocks across 20+ global exchanges, fractional shares from $10
- Publicly listed company
What could be better
FX fees are on the higher side compared to Trading 212 or Interactive Brokers for standard-tier users. There is a $10 monthly inactivity fee after 12 months of not logging in. Copy trading is not available inside the ISA (the ISA is offered through a partnership with Moneyfarm rather than being directly integrated). Also, eToro is not recommended for crypto trading specifically, as their fees are around 1% on every buy and sell.
Sign up to eToro and get up to $500 worth of free assets. Just sign up, verify, and deposit to claim.
5. Interactive Brokers: Best for Serious Investors
Interactive Brokers has been around the longest of any broker on this list and is arguably one of the biggest stock brokers in the entire world. Publicly listed on the NASDAQ, they serve everyone from retail investors to hedge funds with decades of track record behind them.
Key features
- Access to over 150 markets across 33 countries and 25 currencies. No other retail broker comes close
- FX fee of just 0.03%, the lowest on this list by far
- Global portability: if you move abroad, you can usually keep your account and transfer it to a local entity without selling your shares
- Professional-grade tools including Trader Workstation with advanced charting, deep analytics, and API access for algorithmic trading
- Over 22,700 stocks and ETFs eligible for fractional trading, from as little as $1
- Stocks and Shares ISA available with a 3 pounds monthly minimum activity fee (offset by commissions paid)
What could be better
Interactive Brokers can be overwhelming. They have three different apps alone, which is already confusing for many users. There is a steep learning curve. This is not a beginner-friendly platform. The Global Trader app does make it easier, but overall it can be a lot if you are just starting out. Once you get the hang of it though, it is one of the most powerful retail brokers available.
Try Interactive Brokers and take advantage of the low fees, world-class tools, and more market access than any other broker on this list.
Which Broker Should You Choose?
- Just getting started and want the best experience with automated plans inside a tax-free ISA? Give Lightyear a try.
- Want to build an ETF portfolio on autopilot with high interest on idle cash? XTB is a great option.
- Want the absolute cheapest option with the lowest FX fees among simpler platforms? Trading 212 is hard to beat.
- Interested in social investing and want to copy experienced traders? eToro is the only real option for that.
- A serious investor who wants access to everything with professional-grade tools? Interactive Brokers is the clear choice.
Disclaimer: Investing involves risks and the value of your investments can go down as well as up. You may get back less than you invested. This is not financial advice. All interest rates mentioned are variable and will change over time as central bank rates move. Check the current rates when you sign up. This article contains affiliate links, meaning I may earn a small commission if you sign up through them, at no additional cost to you. Capital at risk.
