Someone messaged us last week: "My friend's EA doubled his account in three months. Should I follow him?"
We asked one question: how long has the EA been running?
Three months. Only three months.
Here's something every EA trader learns eventually: strategies that make money for three months are everywhere. Strategies that make money for three years are rare. Your friend's EA earning 30% monthly for a quarter is entirely possible. Sustaining that for a year? The math says almost certainly not.
This article is about the math. Not hype, not promises, not screenshots. What can an EA actually earn across different account sizes, and how do you set expectations that won't get you killed?
The compound interest trap
"10% monthly" doesn't sound that ambitious. Some Martingale EAs beat that in their first week.
But run the compound interest. 10% monthly isn't 120% annually. It's 1.1 raised to the 12th power: 3.14. That's a 214% annual return.
Start with $10,000. After one year: $31,400. After two years: close to $100,000. After three years: $314,000.
Sounds incredible. Now consider that the world's top hedge funds average 15–25% annually. Warren Buffett's long-term compound return is around 20% per year. Your EA is not ten times better than Buffett. Nobody's is.
Can you earn 10% in a single month? Absolutely. Can you earn 10% every month for 12 consecutive months with no losing month? The probability approaches zero. Drawdowns happen. Losing streaks happen. Sideways markets happen.
The first thing to recalibrate: stop thinking in monthly returns. Think in annual returns. An EA producing 30–80% annually with manageable drawdown is genuinely excellent.
Three tiers of EA performance
Based on years of testing and running EAs at FXTool, strategies roughly fall into three categories:
| Tier | Monthly avg | Annual range | Typical max DD | Strategy types | Survival rate |
|---|---|---|---|---|---|
| Conservative | 2–5% | 30–80% | 10–15% | Trend following, mean reversion, strict position sizing | High (2+ years common) |
| Moderate | 5–10% | 80–200% | 20–30% | Breakout, partial grid, volatility strategies | Medium (6–18 months typical) |
| Aggressive | 10–20% | 200%+ on paper | 40–100% | Martingale, heavy position sizing | Low (most blow up within 12 months) |
The conservative tier doesn't look exciting. 3% monthly sounds boring. But the EAs still running after two or three years — still generating steady withdrawals — are almost all in this category.
The moderate tier can work if the risk controls are solid. But you have to be prepared for two or three consecutive losing months. If that makes you shut off the EA, this tier isn't for you.
The aggressive tier produces the best screenshots and the worst long-term results. We've watched EAs in this category make 200% in six months and then lose everything in month seven. Net result: negative. If you insist on running aggressive strategies, there's one iron rule: once you've doubled your starting capital, withdraw the original. Play with profits only. If those get wiped out, it stings less.
What different account sizes actually mean
EA returns are percentages. But you spend dollars. Most beginners don't think clearly about this gap.
| Account size | Monthly return at 3–5% | What this buys you | Real purpose |
|---|---|---|---|
| $100 | $3–5 | Nothing | Trial and error. Verify the EA works for 3–6 months before scaling. Losing it all costs less than a dinner out. |
| $1,000 | $30–50 | Covers VPS cost, small profit | Learning phase. Record every trade, analyze drawdowns, optimize parameters. This is tuition money. |
| $5,000 | $150–250 | Decent side income | Getting serious. But can you handle a $750–1,500 drawdown month without panicking? |
| $10,000 | $300–500 | Meaningful side income | Real money territory. Drawdowns of $1,500–3,000 are possible. If that keeps you up at night, the account is too large for you. |
| $50,000+ | $1,500–2,500 | Approaching passive income | Only after 1–2 years of verified live performance. Full-time EA traders we know typically run $100K+ across multiple uncorrelated strategies. |
Every beginner should start at $100–500. Not to make money — to prove the EA can survive for six months. The traders who skip this step and deposit $10,000 on day one are the ones writing angry forum posts three weeks later.
Why "50% monthly" claims are almost always fake
You see them in forums, groups, and comment sections: screenshots showing 500% in three months. Perfect equity curves. Five-star reviews.
Three things are usually going on.
Survivorship bias. The seller opened ten accounts running ten different parameter sets. Nine blew up. The one that survived becomes the marketing material. You're looking at the lucky one — not the typical outcome.
Small sample size. Flip a coin and get heads ten times in a row? The odds are about 1 in 1,000. But if 1,000 people are flipping simultaneously, someone will do it. That person posts a screenshot. Three months of trading results is the same kind of small sample — too short to distinguish skill from luck. You need at least 12 months of continuous live data, and even then you're only starting to get statistical confidence.
The Martingale trap. Many of these spectacular-return EAs double position size after every loss. The equity curve goes up in a straight line until the one day it goes to zero. The screenshot you see is always from before the straight line broke. We've written extensively about how to identify this pattern.
Backtest returns vs live returns
This is something most beginners don't account for until it hits them.
An EA backtests at 8% monthly. How much do you actually make in live trading?
Based on our testing across dozens of EAs: live returns are typically 50–70% of backtest returns. An EA backtesting at 8% monthly will probably deliver 4–6% live.
The reasons stack up:
Slippage. Backtests fill every order at the exact requested price. Live trading doesn't. During volatile moments, slippage alone can eat several pips per trade.
Spread variation. Backtests usually use fixed spreads. Real spreads float, and they widen significantly during news events and low-liquidity periods.
Overfitting. The developer optimized parameters until the backtest curve looked perfect. Those parameters captured historical noise, not market patterns. Live markets look different.
Network latency. The delay between your VPS and the broker's server affects execution quality, especially for scalping strategies.
So when someone shows you a backtest report claiming 15% monthly, mentally discount it by 40%. The realistic expectation is around 9%. Factor in unexpected live-trading friction, and 7–8% is probably closer to reality. That's still good — but it's a long way from 15%.
What MQL5 signals actually show
Instead of trusting marketing, look at verified live performance. The MQL5 signal marketplace is the most transparent EA performance platform available — all data is verified through real broker connections.
We went through the top-ranked signals with 12+ months of history. Here's what the data looks like:
| Percentile | Annual return | Monthly avg | Typical max DD |
|---|---|---|---|
| Top 10% | 50–150% | 4–8% | 15–30% |
| Top 30% | 20–60% | 1.5–4% | 10–20% |
| Signals surviving 2+ years with positive returns | Less than 20% of total |
Those numbers tell the real story. The best EA signals in the world — verified, public, no cherry-picking — average 4–8% monthly. Not 30%. Not 50%. Four to eight.
The signals claiming 30–50% monthly? Check their survival time. Most don't last six months. The ones that make it eight or nine months eventually disappear from the rankings one day. Account blown.
Setting goals that won't destroy you
Based on everything above, here's a timeline that actually works.
For the first year, forget about making money. Seriously. Your goal is to end the year with a positive balance. Small account, every trade recorded, learning how your EA actually behaves when markets get weird. If you're in the green after 12 months, you've done better than most. Our risk management guide is worth reading before you start.
Once you have a year of data, start pushing for consistency — 3–5% monthly average, drawdown under 15%. Losing months will happen. That's fine. What matters is whether the annual curve trends upward. Use the position size calculator to stay disciplined on sizing.
Scaling comes after you have real evidence, not after you have confidence. Two years of live results gives you enough data to increase capital responsibly. Never add more than 50% at once. $5,000 working well? Go to $7,500. Run it a few months. Then $10,000. It's slow. It's boring. It works.
Don't invest your savings after a good three months. The forex market has an unlimited supply of surprises. And diversify: run 2–3 uncorrelated EAs on different pairs. When one is in drawdown, another might be in profit. The combined curve is much smoother than any single strategy.
The real advantage of running an EA
After all this math about returns and drawdowns, here's what actually matters.
An EA's biggest value isn't making you rich. It's removing you from the decision loop.
When you trade manually, you're scared when you should be patient, greedy when you should be cautious, and impulsive when you should do nothing. You hold losers too long and cut winners too early. You know you shouldn't chase the entry, but you do it anyway.
An EA doesn't have this problem. It follows the rules every time, at 3 AM or 3 PM, whether the account is up or down. No emotions, no second-guessing.
The compound effect of that discipline is the real edge. An EA making 40% annually sounds modest. Run it for five years: 1.4^5 = 5.38. Your $10,000 becomes $53,800. Ten years: $289,000. The returns aren't spectacular in any single year. The consistency is what creates wealth.
The question isn't "how much can I make this month." It's "can I keep making it, month after month, year after year." Nobody writes blog posts about the trader who made 3% monthly for a decade. But that trader retired comfortably. The one chasing 30% monthly didn't.
Browse the FXTool marketplace to find EAs with verified backtest data and live signal tracking, or start with our backtesting guide to learn how to evaluate any EA yourself.
FAQ
Can an EA replace my job?
Theoretically yes, but you'd need $50,000–100,000 in capital plus one to two years of live verification. A more realistic path: treat EA income as a side stream, fund it with salary, and only consider going full-time after EA income consistently exceeds double your salary for at least a year. Why double? Because you need buffer for drawdown months.
Should I pick an EA making 5% monthly or 15% monthly?
The 5% one. An EA averaging 15% monthly almost certainly won't survive a full year. Look past the return number — check the max drawdown and how long it's been running. An EA with a 2-year track record, 4% monthly average, and 18% max drawdown is far more reliable than one running 3 months at 15%.
Does account size affect EA performance?
Somewhat. Small accounts ($100–500) have limited position sizing precision — the minimum 0.01 lot may be too large relative to the balance. Very large accounts can experience more slippage on entries and exits because the order size impacts the market. The sweet spot for most EAs is $1,000–50,000. Our how to choose an EA guide covers this in more detail.
My EA backtests great but loses money live. What's going on?
Most likely overfitting. The parameters match historical data too perfectly and break when market conditions shift. Could also be unrealistic backtest spread/slippage settings. Test with 99%+ tick data and realistic cost models. If the gap between backtest and live exceeds 50%, the EA probably has structural issues.
How long does it take to know if an EA is reliable?
Six months minimum, twelve months preferred. The testing period needs to include different market conditions: trending, ranging, and at least one volatility spike. An EA verified only during a trending market might completely fail during consolidation. On MQL5, we only look at signals with 12+ months of verified history.
About the author: The FXTool team builds and tests MetaTrader trading tools daily. We run every EA we sell on live accounts and publish the results. This guide reflects what we've learned from building 50+ EAs and working with thousands of retail traders.
Forex trading involves significant risk and may result in total loss of capital. This article is for educational purposes only and is not investment advice. Understand the risks and consider your financial situation before trading.