This article compares ECN and STP brokers for Australian retail forex traders who want to know which execution model gives them the best deal. For most active Australian traders, ECN brokers offer tighter spreads and faster execution — making them the stronger choice if you trade frequently or in larger sizes.
Quick Comparison — ECN vs STP
| Factor | ECN | STP |
|---|---|---|
| Spread type | Raw (from 0.0 pips) | Marked-up (from 1.0+ pips) |
| Commission | Yes — per lot | Usually none |
| Execution speed | Very fast (direct market access) | Fast (routed to liquidity providers) |
| Conflict of interest | None — broker does not take the other side | Low — but markup adds indirect cost |
| Best for | Active traders, scalpers, high-volume | Casual traders, beginners |
| Minimum deposit (typical) | A$200–A$500 | A$100–A$200 |
What Is an ECN Broker?
ECN stands for Electronic Communications Network. An ECN broker connects your trades directly to a network of liquidity providers — banks, institutions, and other traders — without a dealing desk in the middle. This means the prices you see are real market prices, and your orders are matched electronically at the best available rate.
The cost model is different from what many beginners expect. Instead of building profit into the spread, ECN brokers charge a flat commission per lot traded. For example, IC Markets charges around A$3.50 per side on a standard lot. So if you buy one lot of AUD/USD and later sell it, you pay roughly A$7.00 in commission total — but you get raw spreads as low as 0.0 pips on major pairs.
ECN execution is particularly valued by scalpers and day traders because orders are processed in milliseconds and there is no broker intervention. Slippage still occurs during major news events, but overall price integrity is high. Brokers like IC Markets and Pepperstone operate ECN models in Australia and are both ASIC-licensed.
What Is an STP Broker?
STP stands for Straight Through Processing. An STP broker routes your orders directly to liquidity providers without manual intervention — similar to ECN in that there is no dealing desk. The key difference is how they make money: STP brokers add a markup to the raw spread rather than charging a separate commission.
For example, if the raw EUR/USD spread from a liquidity provider is 0.2 pips, an STP broker might show you 1.2 pips and keep the 1.0 pip markup as revenue. On a standard lot, 1 pip on EUR/USD is worth roughly A$13–A$15. This cost is invisible compared to a line-item commission, which makes STP accounts feel simpler — especially for traders using smaller position sizes.
STP brokers typically have lower minimum deposits and no per-trade commission, which suits casual traders who place fewer trades per week. Many Australian brokers that advertise “no commission” accounts are running an STP model. It is worth understanding leverage rules under ASIC, which cap retail forex leverage at 30:1 regardless of whether your broker is ECN or STP.
Key Differences — ECN vs STP
- True cost of trading: ECN accounts look more expensive at first glance because of visible commissions, but for active traders the total cost is often lower. An STP spread of 1.5 pips on AUD/USD costs about A$19.50 per standard lot. An ECN spread of 0.1 pips plus A$7.00 commission comes to roughly A$8.30 — less than half the price at higher volumes.
- Transparency and conflict of interest: ECN brokers have no financial reason to trade against you — they earn commission whether you win or lose. STP brokers also do not take the other side of your trade, but the spread markup means their revenue increases when market conditions widen spreads, which can create subtle misaligned incentives.
- Execution quality during volatility: During high-impact news events like RBA rate decisions or US Non-Farm Payrolls, ECN models tend to provide better fill quality because orders go straight to deep liquidity pools. STP brokers may widen spreads more aggressively during these periods to manage their risk on the markup.
- Platform compatibility: Both ECN and STP brokers typically support MT4 and MT5. ECN accounts are also commonly offered on cTrader, which was built specifically for raw-spread, commission-based trading. If you want to compare platforms, see our guide on MT4 vs cTrader.
- Accessibility for beginners: STP accounts are more beginner-friendly — no commission calculation required, simpler cost structure, and lower minimum deposits. If you are still practising, a demo account on either broker type lets you test execution without real money at risk.
Which Is Better for Australian Traders?
The answer depends on how often you trade and how much volume you put through each month. Here is a clear breakdown:
If you trade more than 10 lots per month, scalp, or use algorithmic strategies — choose an ECN broker. The raw spreads and fast execution will save you real money over time. IC Markets and Pepperstone are both ASIC-licensed ECN brokers with strong reputations among Australian retail traders. You can read the full IC Markets review or the Pepperstone review to compare them directly.
If you are a casual trader placing a handful of trades per week on standard lot sizes under A$50,000 — an STP broker is perfectly fine. The commission-free structure keeps things simple and the cost difference per trade is small enough that it will not significantly affect your results.
If you are brand new to forex, start with our Forex Beginner Guide before committing to either broker type. Understanding the basics of execution will help you make a more informed choice once you are ready to go live.
For a curated list of tested, ASIC-licensed options across both execution models, see our picks for the best forex brokers in Australia below.
See our picks for Best Forex Brokers Australia — all ASIC-licensed, all live-tested by our team.
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