Every trader reading about a new prop firm focuses on the headline numbers: profit target, daily loss limit, max drawdown, profit split. But FundCoupon has documented dozens of cases where funded traders lost their accounts to rules they either didn't know existed or didn't think would apply to their situation. This guide covers the most common hidden rules that catch traders off guard.
The Minimum Trading Days Rule
Many forex firms including FTMO (ftmo.com) have a minimum trading days requirement — typically 10 days for Phase 1 and 10 days for Phase 2. This means you can't hit your profit target in 3 days of exceptional trading and immediately progress. You must spread that trading across a minimum number of calendar days.
The minimum trading days rule has caught countless traders who thought they'd 'smashed' the challenge in a week — only to find they needed to trade 7 more days before progression was counted.
Consistency Rules
Some firms impose consistency rules that limit how much of your profit target can come from a single day. The most common version: no single trading day can represent more than 30–40% of your total profit target. This is specifically designed to prevent lucky one-day home runs from substituting for genuine, consistent trading ability.
- Example: 8% profit target on $100K account = $8,000. Consistency rule = maximum $2,400 (30%) from one day
- Firms with consistency rules: The5ers, FundedNext, Fxify (some account types)
- Firms without consistency rules: FTMO standard accounts, Funding Pips, Apex
- Check before starting: The consistency rule is often the most obscure of all challenge rules
Weekend Holding Restrictions
A significant number of forex firms prohibit or restrict holding positions over the weekend. The restriction exists because forex gaps at Sunday open can be significant, and prop firms want to limit their model's exposure to gap risk. Traders who hold through the weekend without knowing this rule can have profitable trades voided or face account warnings.
Prohibited Instruments and Times
Most firms publish a list of tradeable instruments — but fewer prominently disclose restricted times for those instruments. Some firms restrict trading during US pre-market or after-hours even for forex-adjacent products. Others restrict trading on specific pairs during their home country's bank holidays.
- News restriction: No new positions within 2–5 minutes of tier-1 economic releases (common at many firms)
- Instrument restrictions: Not all instruments on the platform are available for challenge accounts
- Leverage changes: Leverage on crypto pairs may change during high volatility periods without notice
- Session restrictions: Some firms only count trades during official market hours for the instrument
EA and Automation Rules
Expert Advisors (EAs) and automated trading are allowed by most major forex firms, but with significant conditions. High-frequency trading (more than 200 trades per day), latency arbitrage, tick scalping, and copy trading from external signal sources are almost universally banned. Read the automation policy before deploying any EA.
Always read the full terms and conditions before purchasing any prop firm challenge. FundCoupon provides rule summaries for all firms in our directory alongside verified discount codes — use both to make an informed, cost-effective decision.
FundCoupon Verification Note
Promotions, rules, and checkout terms can change. Verify the current offer and evaluation rules on the official firm website before paying for any challenge.