Daily Drawdown Rules: The Silent Killer of Funded Accounts

In 2025, FTMO reported that 62% of account terminations on funded accounts were caused by drawdown violations — not by a string of losing trades, but by a single session where the daily loss limit was breached.

The mechanism is simple. The execution is where traders consistently go wrong.

How Daily Drawdown Is Actually Calculated

Every prop firm calculates daily drawdown slightly differently. Understanding the exact method for your firm is non-negotiable before you go live.

Balance-based (most common): The daily loss is measured against your start-of-day balance. If your account balance at midnight is $100,000, you cannot lose more than $5,000 (5%) of that $100,000 by end of day. Profits made during the day do not increase your daily loss allowance.

Equity-based: Less common. The daily loss is measured against your highest equity point of the day. If you hit $103,000 in equity during the morning session and then pull back, you cannot lose more than 5% from $103,000 ($5,150). This is actually harsher because your protected floor rises as you win.

Starting balance fixed: Some firms use your original account starting balance for the entire challenge period. A 5% loss limit on a $100,000 account means you can never lose more than $5,000 in a day, regardless of profits made.

WARNING

Read your prop firm's specific terms carefully. Never assume — FTMO uses balance-based (start of day), while some other firms use equity-based. Getting this wrong terminates funded accounts daily.

The Three Violation Scenarios

Scenario 1: The Winning Start Trap

You open three trades in the London session. Two hit their take profits for $3,000 total profit. You are feeling good. You then enter a large position and it goes against you, ultimately losing $6,500.

Net result: -$3,500 for the day. But your daily loss calculation is not net — it is gross losses. You lost $6,500 gross in that last trade, which exceeds your $5,000 limit. Account terminated.

Fix: Track your gross losses for the day in a separate column. Wins do not cancel losses for drawdown purposes.

Scenario 2: The Overnight Position

You close the trading day on Thursday with a profitable open position. Overnight, news breaks. By the time markets open Friday, your position is $7,000 in the red.

The prop firm counts the loss from the end of Thursday's session — so Friday begins with $7,000 already charged to your daily drawdown. Your effective daily trading limit for Friday is now negative.

Fix: Most experienced prop firm traders avoid holding positions overnight unless the trade has significant cushion (2-3% of buffer above the daily limit). At minimum, move SL to breakeven before end of session.

Scenario 3: The Spread at Open

Your EA has a hard SL set 50 pips from entry. At the New York open, spread widens to 40 pips. The EA enters a trade. The spread impact means your actual exposure is 90 pips from the true market price.

Markets move 60 pips against you. You are stopped out for 110 pips total — more than your expected 50-pip loss. With two positions running, this double exposure can quickly breach daily limits.

Fix: Set a MaxSpread parameter that prevents new entries when spread is abnormal.

Protecting Yourself: The Hard Floor Method

Set your EA to halt all trading when remaining daily loss budget reaches 2% — leaving a 3% buffer before the actual limit.

// EA risk management settings
DailyLossLimit_Pct     = 3.0    // halt at 3% loss (2% before the 5% limit)
HaltOnLimitReached     = true   // prevent any new entries after halt
ResetHaltAtMidnight    = true   // resume next day automatically
AlertOnApproach        = true   // alert when within 1% of halt level
CloseAllOnHalt         = false  // close existing positions? (depends on strategy)

The 2% buffer accounts for:

• Spread widening during your last trade
• Multiple positions running simultaneously
• Stop slippage in fast markets

TIP

Set a second, tighter limit for news events. During high-impact news, temporarily reduce your daily loss limit to 1.5% to prevent a single news spike from ending your account.

What to Do After Hitting the Daily Limit

Once your EA halts for the day, do not manually override it. The emotional temptation to "just make it back" is exactly the mindset that ends funded accounts.

The funded account is not going anywhere. Come back tomorrow with a fresh limit and a calm approach. The traders who stay funded for years treat daily limits as absolute — not as guidelines.

Daily drawdown is not complicated. It is just inconveniently strict. An EA that monitors it automatically removes the risk of human error. Manual traders who fail funded accounts almost always report the same thing: "I knew the limit but I was in a trade and did not check."