RULES EXPLAINED

Prop Firm Consistency Rules Explained (With Examples)

Consistency rules stop one lucky day from passing an evaluation. Here is the arithmetic and how to plan around it.

By the QATS team2 min read6 sections

A consistency rule limits how much of your total profit can come from a single day. It exists so that an evaluation measures a repeatable process, not one outsized trade. Since 2025 more firms have added them, including on 1-step challenges.

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How the percentage is calculated

Best-day share = best single-day profit ÷ total profit. With a 40% rule, if your total profit is $1,000, no single day may exceed $400. If one day made $600, you simply need more total profit — $1,500 — before the rule is satisfied.

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QATS consistency targets

QATS Crypto evaluations use a 40% best-day limit; TradFi evaluations use 50%. On QATS the rule applies to the evaluation, not to the funded account.

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Worked example

DayP&LTotalBest day share
1+$250$250100%
2+$300$55055%
3−$100$45067%
4+$280$73041%
5+$290$1,02029% ✓
QATS $10K Crypto: $1,000 target, 40% rule
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Why firms use consistency rules

Without a consistency rule, a trader could pass a 10% evaluation with a single all-in trade. That proves luck, not process, and the same trader is likely to breach the funded account quickly. Consistency rules make the evaluation measure repeatable behaviour, which is also what the firm’s payouts depend on.

The rule usually does not breach your account. It only changes when the target counts as reached: if one day is too large a share of the total, you keep trading until the total is large enough.

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Variants you will see

  • Best-day rule: the largest winning day must stay below a percentage of total profit (QATS, FTMO 1-Step).
  • Best-day vs target: the largest day must stay below a percentage of the profit target rather than of the profit made.
  • Funded-stage consistency: the same check applied before each payout request.
  • Lot-size consistency: trade sizes must stay within a range of your average size.
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Planning around it

  • Cap a single day at roughly 40% of the profit target, then stop trading for the day.
  • If you have one outsized day early, keep trading normal size rather than forcing the remaining target.
  • Losing days do not count against the rule directly, but they reduce total profit and raise the best-day share.
FAQ2 questions

Frequently asked questions

01Does the consistency rule apply to funded accounts?

It depends on the firm. On QATS it applies only to the evaluation stage.

02What happens if I break the consistency rule?

Usually nothing is breached — you just need more total profit before you pass or request a payout. Read your plan’s exact wording.

Written by the QATS team

The team behind QATS Prop. Every QATS figure comes from the published plan lineup; spotted something outdated? Email support@qats.us.

Published Updated

Educational content, not investment advice. QATS evaluations and initial funded accounts are simulated; payouts depend on eligibility, verification and the applicable agreement.