How Leverage and Margin Actually Work on a CFD Account
Understanding how leverage and margin work on a CFD account is the difference between trading with a plan and gambling with a bigger number. Both concepts sound similar but do different jobs — leverage sets your exposure ratio, margin is the actual cash your broker holds against it — and mixing them up is one of the fastest ways to blow an account.
What leverage actually does
Leverage lets you open a position larger than your account balance would otherwise allow. If your broker offers 30:1 leverage, you can control a position worth 30 times your margin deposit.
- Leverage is a ratio, not free money. It's borrowed exposure, not borrowed cash you can withdraw.
- It scales gains and losses equally. A 1% move against a 30:1 leveraged position is roughly a 30% swing on the margin you put up.
- It doesn't change pip value. A standard lot of EUR/USD is still worth the same per pip whether you're using 10:1 or 30:1 leverage — leverage just changes how much margin that position ties up.
- Regulated leverage caps exist for a reason. UK-regulated brokers such as Pepperstone and IG apply FCA leverage limits on major FX pairs for retail clients (commonly up to 30:1), with lower ratios on indices, shares and crypto CFDs.
The practical upshot: leverage decides how efficiently you use your capital, not how big your risk per trade should be. That's a decision you make separately, with position sizing and stop-loss placement.
What margin actually is
Margin is the portion of your account balance your broker sets aside — not spent, just reserved — to open and hold a leveraged position.
- Required margin = position size ÷ leverage (roughly, before adjustments for currency conversion).
- It's returned to your free margin once the trade is closed.
- It is not a fee, spread, or commission — those are separate costs that apply regardless of margin.
- Different instruments carry different margin requirements even at the same account leverage setting, because brokers apply asset-class-specific margin rates (FX majors vs. minors, indices, commodities, shares).
Always check the contract specification for the exact instrument you're trading rather than assuming one leverage figure applies everywhere on the platform. Both Pepperstone and IG publish margin rates by instrument on their platforms and websites — worth checking before you size a position, not after.
A worked example
Say you have £2,000 in your account and want to trade 1 standard lot (100,000 units) of EUR/USD, with EUR/USD at 1.1000.
- Notional value: 100,000 × 1.1000 = $110,000 (roughly £88,000–£90,000 depending on conversion).
- At 30:1 leverage, required margin ≈ £88,000 ÷ 30 = ~£2,933.
- That's already more than your £2,000 balance — so at 30:1, this position isn't available to you without more capital or a smaller size.
Now scale down to 0.1 lots:
- Notional ≈ £8,800.
- Margin required ≈ £8,800 ÷ 30 = ~£293.
- Free margin remaining ≈ £2,000 − £293 = £1,707.
This is why position sizing and leverage need to be worked out together, not treated as separate steps. A leverage ratio tells you what's *possible*; your own risk rules should tell you what's *sensible*.
Margin level, margin calls, and stop-outs
Once you have open positions, your broker tracks a live ratio called margin level:
`
Margin Level (%) = (Equity ÷ Used Margin) × 100
`
- Equity = balance plus/minus floating profit or loss.
- Used margin = total margin locked across all open positions.
Brokers set two key thresholds:
1. Margin call level (often around 100%) — a warning that your equity is close to your used margin, meaning further losses will start restricting your ability to open new trades. 2. Stop-out level (often around 50%) — the point at which the broker starts automatically closing positions, usually the most unprofitable ones first, to stop your balance going negative.
These thresholds vary by broker and account type, so check the specific figures for Pepperstone, IG, or whichever broker you use rather than assuming a standard number applies everywhere.
Why leverage doesn't equal risk
A common mistake is treating "high leverage" as automatically "high risk." In reality:
| Factor | What it controls | |---|---| | Leverage | How much margin a position ties up | | Position size | How much money you make or lose per pip | | Stop-loss distance | How much you lose if the trade goes wrong | | Account balance | How much of a loss you can absorb |
You can use high leverage and still risk very little per trade — by trading a small position size relative to your balance. Conversely, low leverage doesn't protect you if you're sizing positions too aggressively for your account. The leverage setting affects your *margin efficiency*, not your *risk management discipline* — that's still on you.
Checking real costs and margin requirements
Rules of thumb only get you so far. Before sizing any leveraged position:
- Check the exact margin requirement for that instrument on your broker's contract specification page.
- Confirm your account's leverage tier — some brokers reduce leverage automatically as position size grows.
- Factor in spread, commission and overnight swap costs, since these erode returns independently of leverage and margin — see /rates.html for how these vary.
- Run your numbers through a proper cost and margin comparison rather than guessing — /audit.html is built for exactly this, and /brokers/index.html lists regulated options like Pepperstone and IG so you can compare margin policies side by side.
Conclusion
Getting a solid grip on how leverage and margin work on a CFD account means separating two ideas that are easy to blur: leverage is the ratio that determines how much exposure your capital can control, and margin is the actual amount your broker holds against that exposure. Neither is a cost, and neither is inherently dangerous — what matters is how you size positions and manage stop-losses against your account balance. Before you trade, check your broker's specific margin rates and leverage tiers, and lean on tools like /audit.html and /school/index.html rather than assumptions carried over from a different broker or instrument.
Key takeaways
- Leverage lets you control a large position with a small deposit, but it magnifies both profits and losses equally
- Margin is the cash your broker sets aside from your balance to open and hold a leveraged position — it is not a fee
- Your margin level (equity ÷ used margin × 100) determines how close you are to a margin call or stop-out
- Higher leverage doesn't change your risk per pip — it changes how much capital you tie up and how much room you have before a stop-out
- Leverage limits differ by regulator and instrument, so always check your broker's actual margin requirement per symbol before trading
- Use a cost and margin tool alongside your broker's contract specifications rather than relying on rules of thumb
Frequently asked questions
- Does higher leverage mean higher risk on every trade?
- Not directly. Your risk per pip is set by position size, not leverage. What higher leverage changes is how much margin is tied up and how much cushion you have before a margin call, so it indirectly encourages larger position sizes if you're not careful.
- What's the difference between margin and leverage?
- Leverage is the ratio (e.g. 30:1) describing how much exposure you can control per pound of margin. Margin is the actual cash amount your broker locks from your balance to open and maintain that position. One is a ratio, the other is a currency figure.
- What happens if my margin level drops too low?
- Most brokers issue a margin call warning at a set margin level (often around 100%) and will automatically start closing positions at a lower stop-out level (often 50%) to protect both you and themselves from a negative balance.
- Is margin the same as a trading fee or commission?
- No. Margin is refundable collateral, not a cost. It's returned to your free balance when you close the position. Spreads, commissions and overnight swaps are the actual trading costs — check /rates.html and /audit.html for how these stack up by broker.
- Why do UK-regulated brokers cap retail leverage?
- FCA rules cap leverage on major FX pairs (typically 30:1 for retail clients) to limit how much retail traders can be exposed to relative to their deposit. Professional-classified clients can sometimes access higher limits, but with reduced protections.