What is Slippage in Forex? A Complete Guide for South Africa Traders (2026)

What Exactly is Slippage?

Slippage occurs when a market order is filled at a price different from the quoted price. For example, if you try to buy USD/ZAR at R18.50 but the market moves quickly, your order might fill at R18.55. This is negative slippage. Positive slippage happens when you get a better price, but it's less common.

Why Does Slippage Happen?

Slippage is caused by three main factors: high volatility (like ZAR news events), low liquidity (trading during off-hours), and broker execution speed. In South Africa, ZAR pairs often see spikes during local economic data releases or global risk events, making slippage frequent.

How Slippage Affects Your Trades

For a South Africa trader using ZAR, even a 5-pip slippage on a standard lot can cost R50 or more. Over many trades, this adds up. Slippage can also trigger stop-loss orders at worse levels, increasing losses. It's a hidden cost that many beginners overlook.

Positive vs Negative Slippage

Positive slippage is rare but welcome—for instance, buying USD/ZAR at R18.45 instead of R18.50. Negative slippage is more common and can hurt profits. Most brokers allow slippage unless they offer a 'guaranteed stop' feature, which may have a fee.

South Africa's forex market is growing rapidly, with more retail traders entering daily. However, the ZAR is one of the most volatile emerging market currencies, often reacting strongly to US interest rate decisions, commodity prices, and local political news. This volatility increases slippage risk. Many South Africa traders use EFT or bank transfers to fund accounts, which can take 1-3 business days—meaning you may miss optimal entry prices. USDT deposits are faster but carry conversion fees. The FSCA regulates brokers to ensure fair practices, but slippage is not illegal. To protect yourself, always test a broker's execution speed with a demo account and read their slippage policy. Avoid brokers that promise 'zero slippage' as it's usually unrealistic.

1. Choose a Broker with Fast Execution
   Look for FSCA-regulated brokers that offer low latency servers. South Africa traders should test execution speeds during peak hours (2 PM – 6 PM SAST) when liquidity is highest.
2. Use Limit Orders Instead of Market Orders
   Limit orders guarantee a specific price, eliminating slippage. However, they may not fill if the market moves away. This is ideal for ZAR pairs during volatile news.
3. Avoid Trading During Major News Events
   ZAR volatility spikes during SA GDP releases, US NFP, or Fed announcements. Wait 15-30 minutes after news to let spreads normalize.
4. Monitor Your Broker's Slippage Policy
   Check if your broker allows negative slippage on stop-loss orders. Some FSCA-regulated brokers offer 'guaranteed stops' for a premium—useful for risk-averse South Africa traders.

Slippage vs Requotes: Requotes happen when a broker rejects your order and offers a new price, while slippage executes at a different price without rejection. For South Africa traders, requotes are more common with market makers, while slippage is typical with ECN brokers. Requotes can be frustrating, but they allow you to accept or decline the new price. Slippage gives you no choice. FSCA-regulated brokers must disclose whether they use requotes or not. If you want faster execution, choose an ECN broker that accepts slippage as normal.

Slippage happens when there is a delay between order placement and execution. For example, a South Africa trader sees USD/ZAR at R18.50 and clicks 'buy'. During the millisecond it takes to reach the broker's server, the price moves to R18.52. The order fills at R18.52—this is slippage. In fast markets, like when the SARB announces interest rates, slippage can be 10-20 pips. Brokers use 'last look' technology or direct market access to manage slippage. For ZAR pairs, liquidity is lower than major pairs like EUR/USD, so slippage is more common. Understanding this helps South Africa traders set realistic expectations.

Example 1: Thabo in Johannesburg wants to buy 1 lot of USD/ZAR at R18.50. The market moves quickly due to US jobs data, and his order fills at R18.55. That's 5 pips negative slippage, costing him R50 (since 1 pip on a standard lot is R10).

Example 2: Lindiwe in Cape Town places a sell stop-loss on USD/ZAR at R18.30. During a sudden ZAR rally, the price jumps to R18.25, and her stop-loss fills at R18.25 instead of R18.30. That's 5 pips positive slippage, saving her R50.

These examples show how slippage can work for or against you. South Africa traders should always account for potential slippage when calculating risk.

The Financial Sector Conduct Authority (FSCA) regulates forex brokers in South Africa. While the FSCA does not cap slippage, it requires brokers to act in clients' best interests and disclose risks. This means your broker must clearly state their slippage policy in the terms and conditions. If you experience excessive or unexplained slippage, you can file a complaint with the FSCA Ombud. Always verify a broker's FSCA license before depositing funds via EFT or bank transfer. FSCA regulation adds a layer of protection, but it's still your responsibility to understand how slippage works.

• Trade During High Liquidity Hours: The best time for South Africa traders is 2 PM – 6 PM SAST (London/New York overlap). This reduces slippage on ZAR pairs.
• Use a VPS for Automated Trading: If you use EAs, a Virtual Private Server (VPS) near your broker's server can reduce execution delays.
• Set Slippage Tolerance in Your Platform: Most trading platforms allow you to set a maximum slippage (e.g., 5 pips). Use this to limit negative surprises.
• Check Spreads Before Trading: Wide spreads often indicate low liquidity. Avoid trading USD/ZAR when spreads exceed 20 pips.
• Keep a Trading Journal: Track slippage incidents to identify patterns. This helps you adjust your strategy for South Africa's unique market conditions.

Slippage is an unavoidable part of forex trading, especially for South Africa traders dealing with volatile ZAR pairs. By understanding its causes and using strategies like limit orders and trading during peak hours, you can minimize its impact. Always choose an FSCA-regulated broker and test their execution with a demo account. Ready to start? Compare top-rated brokers on CompareBroker.io and find one that fits your trading style. Remember, knowledge is your best defense against hidden costs.