Guide
The Prop Firm Consistency Rule, Explained
A profitable evaluation can still fail a payout request over the consistency rule -- the cap on how much of your total profit one single day is allowed to carry. It trips up traders who never breached drawdown or a loss limit at all.
What the rule actually caps
A consistency rule limits how much of your overall profit can come from a single trading day, expressed as a percentage. If your firm's cap is 30% and your best day made $3,000 out of $10,000 total net profit, that day accounts for exactly 30% -- right at the line. The rule exists to filter out accounts that "passed" mostly on one lucky session rather than a repeatable process, which is part of what a firm is actually underwriting before it hands out real capital.
The denominator is the whole story
The number that trips people up is what the best day gets divided by. It's your best day's profit divided by your net profit across every trading day -- including losing days -- not divided by only your winning days, and not divided against the firm's overall profit target. A losing day shrinks that denominator. That means an account can pass this rule comfortably for weeks, then a single bad day -- one that has nothing to do with the best day itself -- pushes the share over the cap simply by lowering total net profit.
Over 100% is a real, meaningful result
If your other trading days net out negative overall, your best day's profit can exceed 100% of your total net profit -- for example 150%, meaning your one good day is carrying more than the entire account's result by itself. That's not a calculator glitch; it's exactly the situation the rule is designed to catch, and it's worth treating as a real signal about how concentrated your results have been, not an edge case to dismiss.
Check your best-day share before you request a payout
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Open the Consistency CalculatorFrequently asked questions
Commonly somewhere between 20% and 50% depending on the firm, meaning your single best trading day cannot account for more than that share of your total profit. There is no universal number -- check your own firm's current published rules rather than assuming a figure.
Depends on the firm. Some only enforce a consistency rule right before a payout on a funded account; others apply it during the evaluation stage too, sometimes at a different percentage. Confirm which stages your specific program applies it to.
Yes, indirectly. The rule is normally your best day's profit divided by your net profit across every day, wins and losses included -- not divided by only winning days. A losing day lowers that net-profit denominator, which can push an otherwise-fine best day's share over the cap even though the best day itself didn't change.
Futures trading contains substantial risk and is not for every investor. This guide is educational, not firm-specific advice -- confirm your account's exact rules against your own agreement. Full risk disclosures.
Want your consistency share checked automatically against your actual logged trades before a payout request? See how Fillbook does it.Also need your drawdown floor? Prop Firm Drawdown Calculator.