Best Margin Brokers In The UK 2025

Author

Christian Harris

Christian is a UK-based investment writer who's been actively trading an array of financial instruments for over 5 years. Having used most of the major brokers in the UK, Christian provides valuable insights on all things investing for British traders.

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Editor

James Barra

James is a UK-based writer and investor with consultancy experience at some of Britain's largest financial organisations. James authors, edits and fact-checks content for a row of investing websites.

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Fact Checker

Michael MacKenzie

Michael is a UK-based investment writer with over 10 years of experience in the journalism industry. Michael has critically evaluated many of the largest investment brokers in the UK, offering authentic insights.

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Searching for the best margin brokers in the UK? We’ve rounded up the top platforms tailored for British investors – highlighting essentials like transparent margin requirements, FCA regulation, GBP account options, and responsive UK-based support.

How Did Investing.co.uk Choose The Best Margin Brokers?

We began by confirming that every broker in our growing database supports margin trading and welcomes UK-based clients.

Next, we applied our unique rating methodology, which evaluates each platform across 200+ data points and eight key categories – including margin rates, fees, platform usability, and FCA oversight.

To tailor our rankings to margin traders, we also gathered specialised data like maximum leverage, costs for trading major UK instruments such as the FTSE 100 and GBP/USD, and access to popular commodities and international equities, ensuring our picks align with the real-world priorities of British investors.

What Is A Margin Broker?

A margin broker is a financial service provider that allows you to borrow funds to increase your buying power when investing in financial markets.

Instead of paying the full value of a trade upfront, you only need to deposit a fraction – known as the margin – with the broker covering the rest.

Margin brokers typically offer access to leveraged trading on various markets, including forex, stocks, indices, and commodities.

Reputable margin brokers operating in the UK must be regulated by the Financial Conduct Authority (FCA), which enforces strict rules around leverage limits, negative balance protection, segregated accounts, and access to the Financial Services Compensation Scheme (FSCS), which can cover up to £85,000 if the broker fails.

Using margin allowed me to take a £5,000 position in FTSE 100 stocks with just £1,000 in my account. While the gains can be amplified, I’ve also learned that market dips hit harder when trading with borrowed funds.

Margin can be a powerful tool – if you respect the risks.

Christian Harris

Author

How To Choose A Margin Broker In The UK

Choosing the right margin broker in the UK can feel overwhelming (I know I’ve been there), especially with many options promising competitive features and low costs. But not all brokers are built the same – and the best choice depends entirely on how you trade.

Some investors seek flexible leverage and advanced trading tools, while others are more concerned with transparent pricing, reliable support, or access to specific markets like UK stocks or forex pairs.

Rather than taking a one-size-fits-all approach, aligning your broker choice with your financial goals, risk appetite, and investing style is essential. A well-matched platform can make a big difference in performance and peace of mind.

To cut through the noise, we’ve highlighted the essential factors UK investors should consider when evaluating margin brokers – backed by real testing, regulatory knowledge, and years of experience in the leveraged trading space.

Margin Requirements

Using margin in investing allows you to increase your market exposure by borrowing capital from your broker, enabling you to take larger positions than your available cash balance would normally allow.

Leverage typically expressed as a ratio like 1:2 or 1:5 determines how much more purchasing power you can access. For instance, with 1:5 leverage, a £2,000 deposit lets you control £10,000 worth of assets.

For investors taking medium- to long-term positions, margin can be helpful for amplifying potential returns on conviction trades. Unlike short-term speculation, this strategy involves holding assets for weeks or months—so understanding the broader impact of leverage is essential.

Margin investing carries ongoing responsibilities, including daily interest or financing fees that apply as long as the borrowed capital remains in use.

I’ve used margin to gain a larger exposure to sectors I believe in – such as renewable energy or UK tech stocks. In one case, I built a £10,000 position using just £2,500 of my capital. When the stock rallied 7% over a few weeks, the return on my capital was nearly 28%.

Christian Harris

Author

But leverage can quickly turn against you. That’s why you should always calculate risk before entering a trade, use stop-loss orders, and monitor margin usage closely to avoid overextending.

Margin can enhance investing outcomes when used wisely, but it’s not without risk. It’s crucial to match your position sizes to your risk appetite, keep an eye on funding charges, and ensure you’re using leverage to support well-researched, long-term strategies—not emotional decisions.

To invest with the highest leverage (and thus high risk), see our list of UK brokers with high leverage.

FCA Regulation

Regulation is more than just a technical detail – it’s the foundation of safe and responsible margin trading. That’s why choosing a broker authorised and regulated by the FCA is essential.

The FCA holds brokers to some of the highest standards in the industry, designed specifically to protect retail investors from excessive risk and unfair practices.

Under FCA rules, brokers must provide negative balance protection, meaning you can’t lose more money than you deposit – even in highly volatile markets.

They must also keep client funds in segregated bank accounts, separate from the company’s operating funds, which helps protect your money if the broker runs into financial trouble.

Leverage limits are also enforced, capping how much you can borrow depending on the asset you’re trading. This helps to keep potential losses within a more manageable range. In addition, regulated brokers must be transparent about costs, risks, and how their products work.

A few years back, I opened a leveraged trade on a commodity during a volatile market. Sudden geopolitical news sent prices soaring past my stop-loss, but my FCA-regulated broker instantly issued a margin call and prevented my balance from going negative. Without those protections, I could’ve faced serious debt – instead, it was just a hard-earned lesson.

Christian Harris

Author

Top pick for UK regulation and trust: IG stands out as a leading choice for UK margin traders, backed by strict FCA oversight, decades of industry experience, and a clear focus on safeguarding client funds. Our tests found it to be one of the most reliable and well-regarded margin trading platforms for British investors.

Markets

A broad range of tradable markets doesn’t automatically make a margin broker better – but it can be a game-changer if your trading approach depends on specific instruments. Access matters, especially when leveraging capital and aiming at particular opportunities.

For instance, if your strategy targets mid-cap UK equities like JD Sports or energy firms listed on the FTSE 350, it’s essential to ensure the broker offers those markets. Not all platforms we’ve tested include a full suite of UK-listed stocks, so checking availability upfront can save frustration later.

More advanced platforms may also include commodities like UK natural gas, sector-based ETFs, or even gold priced in GBP – useful for diversification or inflation hedging.

Another key detail to look out for is the minimum position size. Some brokers set high entry points that can exclude smaller retail traders. If you’re starting with modest capital, look for platforms that support fractional share trading or micro lots, allowing you to build positions without stretching your margin too thin.

Before funding your account, review the broker’s complete product list. Choosing the right platform upfront can make all the difference if your strategy depends on specific sectors, instruments, or trade sizes.

Top pick for assets and markets: IG provides an exceptionally wide range of markets, spanning thousands of global shares, ETFs, indices, and more. The platform supports a variety of trading strategies, with the ability to go long or short on key asset classes such as equities, currencies, and commodities. Including customisable tools like price alerts helps you stay ahead of market moves and manage margin positions more effectively.

Trading Platforms

When investing with margin, a reliable and well-equipped trading platform is just as important as competitive pricing or market access.

Even if you hold positions for days, weeks, or longer, poor platform performance can impact your ability to manage risk, monitor exposure, and make timely decisions – especially when leverage and margin are involved.

For UK investors using margin accounts, stability and clarity are key. A strong platform should allow you to track your margin usage in real-time, understand funding costs, and assess the health of your portfolio at a glance.

TradingView offers powerful charting tools and a clean, intuitive interface

Access to long-term charts, technical indicators like moving averages or MACD, and integrated research tools can support informed entry and exit decisions.

Margin investing isn’t just about speculation – it’s often used to increase exposure to sectors, diversify across markets, or hedge existing holdings.

For this reason, platforms that offer real-time data, margin calculators, and portfolio performance tracking are especially valuable. Features like automatic dividend adjustments, tax reporting tools, and the ability to set stop-loss or limit orders also enhance long-term risk management.

Most FCA-regulated brokers in the UK provide access to trusted platforms, such as MetaTrader 5 (MT5), cTrader, or TradingView, alongside their proprietary software.

While MT5 is particularly strong for analysing multi-asset portfolios, TradingView is well-suited for visualising trends across broader timeframes.

Some brokers’ in-house platforms offer integrated news feeds, investment research, and margin breakdowns tailored to longer-term investors.

Before committing to a broker, it’s worth testing the platform and ensuring it supports your investing goals – not just for placing trades but also for managing risk and making strategic decisions with leverage over time.

Top pick for trading platforms: IC Markets impressed us in our evaluation. It fully supports leading platforms, including MT4, MT5, cTrader, and TradingView. Investors can access a wide range of analytical tools, with integrations like Autochartist and Trading Central providing valuable insights for building and managing longer-term positions.

Fees, Spreads & Commissions

When investing with margin over the medium term, it’s easy to focus on market direction and overlook the quieter drain on your returns – fees.

Whether you’re building a position in UK-listed stocks or tracking a global index like the S&P 500, trading costs can quietly reduce profits or deepen losses if not carefully managed.

Unlike short-term trading, where positions open and close quickly, margin-based investments often remain open for weeks or months. That extended holding period increases costs like spreads, commissions, and financing fees.

Take spreads, for example – the buy and sell price gap. The spread might be tight on highly liquid markets like the FTSE 100. But a wider spread can add up if you’re investing in a less-traded UK mid-cap or a niche ETF.

For a £10,000 leveraged position with just a 2% round-trip spread, you’re already £200 out of pocket before the market moves in your favour.

Then come commissions. Some FCA-regulated brokers charge a fixed fee per trade, while others use a percentage model.

From my experience with leveraged investing, I’ve learned to factor in all costs before entering a trade. I avoid low-margin setups and focus on opportunities where potential returns outweigh fees. Being right on market direction isn’t enough – costs can quietly erode your edge if you’re not careful.

Christian Harris

Author

If you’re investing in gold or commodities using margin and your broker charges £5 per side, that’s £10 every time you open and close a position. On a £30,000 position built with 1:20 leverage, these fees may look small – but combined with spreads and rollover costs, they add up fast.

Overnight financing is often the most overlooked cost. Since margin trading involves borrowing funds, you pay a daily interest rate every night you hold a leveraged position.

For example, having a £20,000 position in the FTSE 250 for a week might cost £40 or more overnight charges – effectively slicing off a chunk of your expected return if you aim for a modest gain.

Smart margin investing means understanding every layer of cost. From the moment you open a trade to when you close it, knowing what you’re paying – and why – can be the difference between steady gains and frustrating outcomes.

Top pick for fees, spreads and commissions: Pepperstone regularly stands out as a top choice for UK investors in our tests thanks to its consistently low fees, tight spreads, and competitive commissions, making margin trading more cost-effective.

Bottom Line

To find the best margin broker for investing in the UK, consider how reliably they execute trades and how responsive their customer service is when issues arise. A broker’s reputation can make a real difference, especially when managing leveraged positions over time.

Consider the types of investments you plan to hold – whether UK equities, global indices, or sectors like energy or tech – and ensure the broker offers access to those markets. The trading platform should also match your investing approach with tools that support analysis and risk management.

Finally, examine the broker’s pricing model closely. If not properly accounted for, costs like overnight financing and trading commissions can reduce returns. Transparent, competitive fees are key to maintaining long-term performance.