You hit the profit target on day 4 of your $50K account. You put in the payout request on day 11. Payout gets denied because your best day was 40% of your total profit and the firm's consistency rule is 30%. No refund. No way to fix it retroactively. You have to keep trading until the rest of your days catch up.
This is the consistency rule. It's the single most misunderstood rule in prop firm evaluations — and the one that turns a "passed" account into a months-long slog.
The one-sentence version
Your best trading day cannot exceed X% of your total profit. The number in place of X is the firm's consistency rule. 30% and 40% are the two common values.
If your best day was $1,200 and your total profit is $3,000, your best-day-ratio is 40%. With a 30% consistency rule, you're failing consistency even though you hit the profit target.
Why it exists
Firms say it's to prevent "lucky traders" — one big day, then a blow-up. What it really does: it prevents traders from cashing out faster than the firm can price them. Most firms make money by selling evaluations. Fast payouts cost them. A consistency rule forces you to keep trading, which increases the chance you give back profits before withdrawing.
This is not a moral judgment of the firms — it's just how the economics work. Understanding the incentive is the point.
The math — and why it's sneakier than it looks
Say you have a 30% consistency rule. Your best day is $600.
For that $600 day to be ≤30% of your total profit, your total profit has to be ≥$2,000.
So if you make $600 on Monday, you need $1,400 more profit from your other days combined before you can withdraw. On flat days, that's weeks. On losing days, you're moving backwards — not just toward blowing up, but toward keeping the ratio right.
That's why a trader who "passes the challenge in 3 days" can still wait 30+ days to get the first payout. The profit target is easy. The consistency rule is the actual gate.
The three places it gets applied (know which)
1. Evaluation-only
Rule applies while you're passing the challenge. Once you're funded, it goes away. Most forgiving version. Firms: MyFundedFutures (no consistency on funded), Earn2Trade TCP (eval only).
2. Payout-only (post-funding)
Rule applies when you request withdrawals, not during the challenge. You can pass with one big day — but you can't cash out until it evens. Firms: Leeloo 30% rule applies to withdrawals.
3. Always-on (eval + funded)
Rule applies forever — during the challenge and during every payout request after funding. Toughest version. Firms: OneUp Trader (80% formula, strictest in the industry), Legends Trading Apprentice (30%), Tradeify Select eval + Growth funded.
The 30% vs 40% difference (and why 10% matters way more than it sounds)
At 30% rule: best day ≤ 30% of total. To withdraw a $600 best day, you need $2,000 total profit.
At 40% rule: best day ≤ 40% of total. To withdraw a $600 best day, you need $1,500 total profit.
That's $500 of "extra trading you have to do before you can get paid" for 10 percentage points of rule change. For a trader averaging $200/day in profit after the big day, that's 2–3 extra trading days of waiting.
Picking 40% over 30% when the price is comparable is one of the simplest value-increases you can make in your firm selection.
The OneUp special case
OneUp Trader deserves its own callout because its rule isn't a straight %. It's a formula:
Your three next-best days' combined profit must total at least 80% of your largest day.
So if your best day is $800, the sum of your three next-best days has to be ≥$640. This is structurally harder than a 30% rule because it requires at least 4 profitable days to withdraw anything. A trader who has two great days and nothing else can't pass this rule even if they hit 10x the profit target.
If you trade in streaks, OneUp is the wrong firm. If you trade balanced days, OneUp's rule barely affects you.
Flipping / soft-breaking — also counted
Most consistency rules have a secondary clause about "flipping days" — days where your profit is an unusually high % of the account balance (often >5%). Too many flipping days, even if each stays under the consistency cap, triggers a violation.
This exists because otherwise traders would game the rule by hitting exactly the consistency number each day. Firms don't want to give clever traders an arbitrage — so they cap both the ratio and the size of any single day.
Check the fine print on flipping rules. Leeloo + a few others enforce them meaningfully. Most firms don't.
What to actually do about it
- Read the exact consistency number on the firm page before you buy. 30% vs 40% is the difference between a 2-week funded experience and a 2-month one.
- Know which phase it applies to. Eval-only is the best case. Always-on is the worst.
- Trade balanced days deliberately if the rule is tight. If you hit a standout winning day early in an eval, your fastest path to funding is often stopping trading that day to avoid blowing through the consistency buffer. Take the afternoon off.
- Compare specific firms head-to-head on this rule. The compare tool shows consistency side-by-side for any two firms.
TL;DR
- Consistency rule = cap on how much of total profit can come from one day (usually 30% or 40%)
- Applies during eval, post-funding, or both — check which
- 40% is materially easier than 30%; the 10-point gap matters more than it sounds
- OneUp's 80% formula is the strictest in the industry because it requires 4+ profitable days
- Pass the profit target fast; then stop trading on your big day to preserve the ratio for payout day
Every firm on PropDash has a Consistency reality line in Real Talk that tells you plainly how the rule is enforced in practice. Start there before buying.