10 Prop Firm Rule Violations That Kill Funded Accounts

You passed the profit target. Your strategy works. Your win rate is solid. Then you get an email: "Your account has been terminated due to a rule violation."

This happens to thousands of traders every month. The violation is rarely a mystery after the fact -- it is always one of the same 10 mistakes. Here are the violations that kill funded accounts, ranked by how frequently they occur, with specific numbers from FTMO, TopStep, Apex, and other major firms.

1. Maximum Drawdown Breach

What it is: Your account equity drops below the maximum drawdown floor. On a $50K FTMO account, the floor is $45,000 (10% static). On a $50K TopStep account, the trailing drawdown starts at $47,000 and moves up with your high-water mark.

Why it kills accounts: Drawdown breaches account for an estimated 40-50% of all prop firm terminations. The most common scenario is not a single catastrophic trade -- it is a slow bleed over 3-5 losing days where the trader keeps trading instead of stopping to reassess.

How traders miss it: On trailing drawdown accounts (TopStep, Apex), traders miscalculate their remaining buffer. They see their balance at $52,000 and think they have $5,000 of room. But if their high-water mark was $54,000, the trailing floor is already at $51,000. They actually have $1,000 of room, not $5,000.

Prevention: Track your drawdown floor in real time. Use Vigil or a spreadsheet. Calculate your remaining buffer before every session.

2. Daily Loss Limit Violation

What it is: Your losses for a single trading day exceed the firm's daily loss cap. FTMO sets this at 5% ($2,500 on a $50K account). TopStep varies by account size ($1,000 on a $50K). Apex does not have a daily loss limit but uses trailing drawdown which functions similarly.

Why it kills accounts: Daily loss violations account for 25-30% of terminations. They happen fast -- one or two revenge trades in a losing session and the limit is breached before the trader realizes it.

How traders miss it: Forgetting that unrealized P&L counts on equity-based firms. A trader holds a losing position thinking "I have not closed it, so it does not count." On FTMO and TopStep, it does count. The floating loss hits the daily limit, and the account is terminated with the trade still open.

Prevention: Set a personal daily limit at 50% of the firm's limit. When you hit it, stop trading. No exceptions.

3. Overnight Position Holding

What it is: Holding open positions through the daily close or overnight when the firm prohibits it. Some firms restrict overnight holding during evaluations, funded accounts, or both.

Which firms restrict it: Apex prohibits holding through the 4:59 PM ET close. TopStep allows overnight holding during evaluation but may restrict it on funded accounts. FTMO allows overnight holding but warns about gap risk. The5%ers allows it freely.

Why it kills accounts: A trader forgets to close before the deadline. Or they hold intentionally, hoping for a gap in their favor, and the gap goes against them -- breaching drawdown limits before the next session opens.

Prevention: Set platform alerts 15 minutes before the firm's daily close. Close all positions manually. Never rely on "I will close it before the deadline."

4. News Trading Violations

What it is: Opening or holding positions during restricted news events. Many firms prohibit trading within 2-5 minutes of major economic releases (FOMC, NFP, CPI, GDP).

Which firms restrict it: FTMO restricts trading 2 minutes before and after high-impact news during funded phase. TopStep has no news restrictions during evaluation. FundedNext restricts it. Apex has no news restrictions.

Why it kills accounts: Traders forget the schedule. They enter a trade at 8:28 AM, not realizing NFP drops at 8:30. The trade is flagged as a news trading violation regardless of whether it was profitable.

Prevention: Check the economic calendar before every session. Mark restricted windows on your chart. If in doubt, flatten before the event.

5. Lot Size and Position Size Violations

What it is: Exceeding the maximum allowed position size for your account. Some firms cap the number of contracts or lots you can hold simultaneously.

Which firms enforce it: Apex limits contracts by account size (typically 2-20 contracts depending on the plan). TopStep has similar limits. FTMO does not have a hard lot limit but the drawdown math constrains you.

Why it kills accounts: Traders scale up after winning days, thinking they have "earned" more room. They open 5 contracts instead of 2, the trade goes against them, and the outsized position burns through the drawdown buffer in minutes.

Prevention: Know your firm's position size limits before you start. Calculate max position based on your per-trade risk, not the firm's maximum allowed.

6. Consistency Rule Violation

What it is: One trading day accounts for too large a percentage of your total profit. TopStep caps this at 50%. Apex at 30%. FundedNext varies by model.

Why it kills accounts: Traders hit the profit target and celebrate, not realizing one big day skewed their consistency ratio past the threshold. The evaluation is retroactively failed.

Prevention: Track your consistency percentage daily. Read the full consistency rule guide for firm-specific thresholds.

7. Weekend Position Holding

What it is: Holding positions over the weekend when the firm prohibits it. Weekend gaps can be severe and firms want to limit their risk exposure.

Which firms restrict it: Most futures prop firms (Apex, TopStep, Bulenox) prohibit or discourage weekend holding. Forex firms (FTMO, The5%ers, FundedNext) generally allow it but the trader bears gap risk.

Why it kills accounts: A trader holds a position into Friday close, the market gaps 100 points against them Monday morning, and the drawdown limit is breached before they can react.

Prevention: Close all positions by Friday afternoon. No exceptions for "it is almost at my target."

8. Hedging Violations

What it is: Holding simultaneous long and short positions in the same instrument, or across correlated instruments on the same account.

Which firms restrict it: FTMO explicitly prohibits hedging on the same account. Most futures firms do not allow it. Some forex firms allow hedging between different accounts but not within the same account.

Why it kills accounts: Traders use hedging as a "loss prevention" strategy -- going long and short simultaneously to freeze their P&L. Firms view this as manipulation and will terminate the account.

Prevention: If your strategy involves hedging, verify the firm allows it before starting. Most do not.

9. Martingale and Grid Violations

What it is: Progressively increasing position size after losses (martingale) or placing a grid of orders at fixed intervals. Some firms explicitly prohibit these strategies.

Which firms restrict it: FTMO prohibits martingale strategies. FundedNext prohibits them. TopStep does not explicitly ban them but the drawdown math makes martingale nearly impossible to sustain.

Why it kills accounts: Martingale requires exponentially larger positions after each loss. On a prop firm account with tight drawdown limits, the 3rd or 4th martingale level typically exceeds the maximum drawdown -- instant termination.

Prevention: Do not use martingale on prop firm accounts. The math does not work with capped drawdown. If you must average into positions, use a fixed scaling plan with predetermined maximum size.

10. Copy Trading and Account Management Violations

What it is: Having another person trade your account, using a trade copier to mirror signals from another source, or managing multiple funded accounts with identical trades.

Which firms restrict it: Nearly all firms prohibit third-party trading. FTMO, TopStep, Apex, The5%ers, and FundedNext all have explicit bans on copy trading and account management. Some also restrict running the same strategy across multiple accounts with the same firm.

Why it kills accounts: Firms detect copy trading through trade timing analysis. If multiple accounts execute identical trades within seconds, the accounts are flagged and terminated. Some traders think using a VPN or different broker will hide the pattern -- it does not. The trade execution timestamps are the signal, not the IP address.

Prevention: Trade your own account with your own analysis. If you use signals or alerts from a service, execute them with your own timing and position sizing -- do not automate the execution.

How to Protect Yourself

The common thread across all 10 violations: traders do not know the exact rules of their firm before they start trading. They assume all firms have the same rules. They do not.

Before starting any evaluation:

1. Read the complete rules document for your specific firm and account size 2. Create a checklist of every rule with the specific threshold 3. Set up monitoring -- whether a spreadsheet, platform alerts, or an automated audit tool -- that tracks your compliance in real time 4. Test your strategy against the firm's rules before risking the challenge fee

Most account terminations are preventable. The rules are public. The thresholds are specific. The only question is whether you take the time to learn them before or after they cost you $200-500.

Run a free Vigil audit to check your trades against 20+ prop firm rulesets. See which violations you are most at risk for.