Forex Trading Guide for Beginners

How forex trading works is easier to see through one trade than through a list of definitions, so this guide builds up the vocabulary and then follows an illustrative position from the first click to the close. Along the way it flags where beginners tend to lose money, and where the firm on the other side of the screen matters as much as the chart.

Forex is always one currency against another

Every forex price is a pair. In GBP/USD 1.2700, the pound (the base currency) costs 1.27 US dollars (the quote currency). If you buy GBP/USD, you are buying pounds and paying with dollars, so you gain if the pound strengthens. If you sell it, you gain if the pound weakens. There is no way to be "in" forex without being against something: a view on the pound is always a view on the pound against another currency.

Pairs are usually grouped as majors (the US dollar against the euro, pound, yen, Swiss franc, Canadian, Australian and New Zealand dollars), crosses (two non-dollar currencies, such as EUR/GBP) and exotics (a major currency against a smaller or emerging-market one). Majors tend to have the narrowest spreads; exotics can be far more expensive and jumpy.

Trading is not the same as changing money

If you want to buy forex online for a holiday or to pay an overseas bill, you are using a currency exchange service: you hand over one currency and receive the other. Forex trading is different. A retail trader rarely receives any currency at all. The broker opens a contract that tracks the exchange rate, and the profit or loss is settled in your account currency when you close it.

Bid, ask and the spread

A broker shows two prices. The bid is what it will pay if you sell; the ask is what it will charge if you buy. The gap is the spread, and it is the first cost of every trade. If GBP/USD is shown at 1.2699 / 1.2701, the spread is 0.0002, or two pips, and a trade that opens at the ask starts two pips behind.

Spreads are not fixed. They tend to be tightest when the main trading centres overlap and widest in quiet periods, around the daily rollover at 17:00 New York time and around major announcements. Our guide to hidden trading costs explains how spreads combine with commissions and overnight charges.

Pips and lots: how a price move becomes money

A pip is the standard unit of movement: 0.0001 for most pairs, 0.01 for pairs that include the Japanese yen. A lot is the unit of size:

The rule behind the table is simple: pip value equals units multiplied by pip size, expressed in the quote currency. For pairs where the dollar is not the quote currency, such as USD/JPY, the result is converted back into dollars at the current rate. The pip calculator does that conversion for you.

Leverage and margin: the part that hurts

A standard lot of GBP/USD at 1.2700 is worth $127,000. Few people trade with that much cash, so brokers ask for a deposit, called margin, and lend the rest of the exposure. The ratio between the position and the deposit is the leverage.

Retail leverage is capped by regulators in many countries. For CFD clients in the UK and EU, the maximum is 30:1 on major pairs and 20:1 on other pairs and gold; Australia uses similar caps; US retail forex is limited to 50:1 on majors and 20:1 on others. Firms operating from places with no such rules may offer 500:1 or more, which is a reason for caution rather than a perk.

The crucial point is that profit and loss are calculated on the full position, not on the margin. Leverage does not change how far the market moves; it changes how much of your deposit each move consumes. If your account equity falls to a set proportion of the margin required (50% under UK and EU rules for retail clients), the broker closes positions automatically. You can model this with the leverage and margin calculator.

One trade, followed from start to finish

The numbers below are illustrative, not a forecast or a suggestion to trade.

1. The plan. You buy 0.5 lots of GBP/USD (50,000 pounds) at 1.2700. On a USD-quoted pair each pip on 0.5 lots is worth $5.
2. The margin. The position is worth 50,000 × 1.27 = $63,500. At 30:1 leverage the broker sets aside $63,500 ÷ 30 = about $2,116.67 of your balance as margin.
3. The stop. You place a stop-loss at 1.2660, 40 pips below your entry. If it is hit, the loss is 40 × $5 = $200, plus the spread and any overnight charges.
4. The target. A take-profit at 1.2780 is 80 pips away, worth 80 × $5 = $400 before costs.
5. The reality check. A 1% move in the pound against you would cost $635, nearly a third of the margin deposit, even though the pound itself has barely moved.

Working backwards is often more useful: decide the most you are prepared to lose on the trade, then let the stop distance set the size. The position size calculator does exactly that.

What happens overnight

A leveraged forex position held past 17:00 New York time is rolled to the next day. The broker charges or pays a financing amount, often called a swap, based on the interest rate gap between the two currencies plus its own mark-up. Because most currency trades settle two business days after the trade date, the charge for the weekend is usually applied in one go on Wednesday night, so Wednesday's swap is often roughly three times the usual amount. For short-term trades it is small; for positions held for weeks it can outweigh the spread.

When the market is open, and what moves it

The market opens on Sunday at 17:00 New York time and closes on Friday at 17:00. Activity rises and falls with the main centres: Sydney and Tokyo first, then London, then New York. The hours when London and New York overlap are usually the busiest, with the tightest spreads. The live market board on our home page shows which sessions are open now.

Exchange rates respond to interest rate expectations, inflation and employment figures, central bank statements and shifts in general risk appetite. Scheduled data releases can move a pair dozens of pips in seconds, and a stop-loss may be filled at a worse price than the one you set if the market jumps past it. That gap between the intended and the actual price is called slippage.

Who is on the other side of your trade?

With many retail forex brokers, the firm itself takes the other side of your position, or passes some of it on to banks and other providers. Neither model is dishonest in itself, but it means the broker's conduct, pricing and financial strength matter a great deal. In a regulated market the firm must hold client money separately, publish its costs and treat customers fairly. Outside one, you are relying on trust alone.

Before any deposit, run through our ten broker checks, and read MetaTrader explained if you have been told a platform is safe because it "runs on MetaTrader".

A sensible order for learning

1. Understand the price: pairs, bid and ask, pips and lots.
2. Understand the cost: spread, commission and swap.
3. Understand the risk: leverage, margin, stops and slippage.
4. Check the firm: licence, client money protection and the withdrawal process.
5. Only then think about strategy, and practise on a demo account while remembering that demo fills are often kinder than real ones.

Sources

• UK Financial Conduct Authority, restrictions on CFDs for retail clients
• European Securities and Markets Authority, CFD product intervention measures
• US Commodity Futures Trading Commission and National Futures Association, retail forex leverage limits
• Australian Securities and Investments Commission, CFD product intervention order