Prop Firm EA and Algo Rules: Allowed Is Not the Same as Unrestricted
Most firms permit automated trading. Almost none permit it without conditions, and the conditions - not the permission - are what accounts are failed on.
Most firms allow you to run your own automation on your own account under the same risk rules as manual trading. Allowed rarely means unrestricted: latency and tick-scalping exploits, high-frequency behaviour, copied external signals and identical fills across accounts are commonly prohibited. A bot built without a daily loss limit usually breaches one in its first week.
EA / algorithmic trading, firm by firm
What "EAs allowed" usually means
It usually means you may run your own automation on your own account, under the same risk rules as manual trading. It usually does not mean any of these are fine:
- Latency and tick-scalping exploits - strategies whose edge comes from the price feed rather than the market.
- High-frequency behaviour: hundreds of trades a day, sub-second holds, or thousands of modifications.
- Copying an external signal, or running the same bot across other people's accounts - see copy trading rules.
- Mass-account identical fills, which look like group trading even when they are not.
- Bots sold with a "passes any challenge" promise, which firms actively look for.
An algorithm is only as good as the rules you can state. Chart Bound makes you state them, free, before any money is involved.
Play free, no signup →The practical problem nobody mentions
A strategy tuned on a retail account with high leverage and no daily loss limit will breach a prop account quickly, because the constraint changed even though the code did not. Before connecting anything, re-test it against the account's actual rules: the daily limit, the drawdown type, and the leverage cap. The backtesting guide covers doing that without fooling yourself.
Questions worth asking before you buy an account
- Are EAs allowed in the evaluation, the funded phase, or both?
- Is there a minimum hold time, a maximum trade count, or a ban on specific techniques?
- May the same strategy run on several of my own accounts?
- What happens if the rule is broken - warning, failed account, or withheld payout?
Get the answers in writing from the firm. The table below shows what we could confirm from each firm's own terms, with Verify where we could not.
Frequently asked questions
Do prop firms allow EAs?
Most allow you to run your own automation on your own account, subject to conditions. The conditions vary by firm and sometimes by phase.
What kinds of bots get banned?
Latency and tick-scalping exploits, high-frequency behaviour, copied external signals and anything that looks like coordinated group trading.
Can I run the same EA on several accounts?
Often yes across your own accounts, but identical fills across accounts are exactly what monitoring looks for. Check the firm's wording first.
Why did my profitable EA fail the account?
Usually because a strategy built without a daily loss limit or a trailing drawdown breaches one of them, not because the logic was wrong.
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An algorithm is only as good as the rules you can state. Chart Bound makes you state them, free, before any money is involved.
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