Home / Questions / How Spreads Affect Gold Profitability
The Spread Tax Table
Every trade you open, the spread is immediately deducted from your potential profit. Think of it as a transaction tax — the table below shows how much of your target each spread level consumes.
| Target | 8-pip spread | 12-pip spread | 18-pip spread |
|---|---|---|---|
| 10-pip target | 80% tax | 120% tax | 180% tax |
| 15-pip target | 53% tax | 80% tax | 120% tax |
| 20-pip target | 40% tax | 60% tax | 90% tax |
| 30-pip target | 27% tax | 40% tax | 60% tax |
| 50-pip target | 16% tax | 24% tax | 36% tax |
Quick Answer
Spread is a transaction tax on every trade. For a scalping strategy targeting 10–15 pips, an 18-pip spread makes profitability mathematically impossible. For a breakout EA targeting 30+ pips, a 12-pip spread is manageable but significant. Choose your strategy's profit targets relative to your broker's spread — or choose a broker whose spread fits your strategy's targets.
Select your strategy's average target, broker spread, and monthly trade count to see the full cost picture.
Average Target (pips)
Your Broker's Spread
Trades per Month
60%
Spread tax rate
of every target pip consumed by spread
1,200 pips
Monthly spread cost
100 trades × 12 pips
$120.00
Cost at 0.01 lot
per month at minimum size
$1200.00
Cost at 0.10 lot
per month at 0.10 lot size
To break even on spread alone, your EA needs a win rate above 38% (assuming 1:1 win/loss size). A 12-pip spread against a 20-pip target means every losing trade costs the target plus the spread — you need to win significantly more than you lose just to cover execution costs.
Spread does not feel significant on a single trade. At 0.01 lots, a 12-pip spread on XAUUSD costs approximately $0.12. Trivial. But multiply that across 150 trades per month: $18 per month, $216 per year. Still manageable at 0.01 lots.
Now scale to the lot size a typical EA trader runs — 0.10 lots on a $5,000 account. That same 12-pip spread now costs $1.20 per trade. At 150 trades per month: $180 per month, $2,160 per year. That is 43% of a $5,000 account simply consumed by spread cost annually — before a single losing trade.
The EA's strategy needs to generate more than $2,160 in net profit annually just to cover its own spread cost at this scale. This is why spread selection is as important as strategy selection. An EA that generates $300 per month in gross profit on 0.10 lots at a 12-pip spread is actually generating $300 − $180 = $120 in net profit per month. Change the broker to one with an 8-pip spread, and net profit becomes $300 − $120 = $180 per month — a 50% increase with zero change to the strategy.
Variable spreads are typically lower during calm conditions — often the headline number you see advertised. But they are unpredictable in a way that breaks EA strategies.
Fixed spread
Advantages
Risks
Variable spread
Advantages
Risks
For EAs without a spread filter, fixed spreads are safer. For EAs that include a spread filter (which pauses trading when spread exceeds a threshold), variable spreads on an ECN broker are preferable — you get tighter spreads during normal conditions and automatic protection during spikes. Goldie Razor V2.8.4 targets 20–35 pip breakouts, making an 8–12 pip ECN spread a manageable 25–40% "tax" — viable compared to strategies with 10-pip targets where the same spread would consume 80–120% of the target.
The most practical rule is the 3:1 target-to-spread ratio. Your average profit target should be at least three times the spread to remain viable across a realistic range of win rates.
| Spread | Minimum viable target | Strategy type | Max spread "tax" |
|---|---|---|---|
| 8 pips | 24 pips | Scalping (tight targets possible) | 33% |
| 10 pips | 30 pips | Breakout / medium scalping | 33% |
| 12 pips | 36 pips | Breakout (20–40 pip targets) | 33% |
| 15 pips | 45 pips | Swing / longer breakout | 33% |
| 18 pips | 54 pips | Swing (minimum viable) | 33% |
| 25 pips | 75 pips | Only viable for large-target swing trades | 33% |
Measure your actual spread
Do not rely on the advertised spread. Open MT5, go to Market Watch, right-click XAUUSD, and enable "Spread" column. Record spreads at different times of day (London open, NY open, Asian session, and during news events) over a full week.
Calculate your true break-even win rate
Use the formula: WR = spread ÷ (spread + target) × 100. If this number exceeds 45–50%, your spread/target combination is extremely difficult to profit from consistently.
Switch brokers if necessary
If your spread exceeds the 3:1 target ratio, switching to an ECN broker is the highest-ROI change you can make to your trading setup. The performance improvement is immediate and permanent.
Adjust strategy parameters for your spread
Some EAs allow you to set minimum targets relative to spread. If yours does, increase the take profit threshold until it is at least 3× your measured average spread.
Add a spread filter to any EA that lacks one
If your EA does not have a built-in spread filter, pause it manually before news events and during the first 5–10 minutes of the Asian session open when spreads are widest.
How Much Spread Is Too High for a Gold Scalping Robot?
Specific spread threshold for scalping bots — where the line is.
XAUUSD EA Spreads: How Much Do They Really Cost You?
Annual cost projection across different account sizes and lot sizes.
Can You Really Make Money Scalping Gold?
The full maths of gold scalping, including spread as a core variable.
Which Broker Is Best for EA Trading?
How to find a low-spread broker specifically for gold EAs.
XAUUSD Slippage and Spreads: How to Minimise Costs
Comprehensive guide to reducing all execution costs in gold trading.
Goldie Razor V2.8.4
M15 breakout + H4 EMA filter — built for XAUUSD on MT5