A consistency rule says no single day may contribute more than a set percentage of your total profit, often 30-45%. It punishes one lucky day and rewards steady extraction. Payout requests get rejected over it, so check before you ask.
Consistency rule calculator
Enter each day’s closed profit. Days with losses count as zero for most firms’ checks, but confirm your firm’s exact wording.
The formula behind it
Each day’s share = that day’s profit ÷ total period profit. A day violates if its share exceeds the limit %. The fix is not trading less on good days going forward, it is earning more on other days so no single day dominates the payout request window.
Worked example
With a 40% consistency rule and profits of $1,200, $900, $800, $600, $500: total is $4,000 and the best day is 30% of it, which passes. Change the first day to $2,000 and the total becomes $4,800 with the best day at 41.7%, a rejection, even though you made more money. Consistency rules pay for smoothness, not heroics.
FAQ
Do all prop firms enforce consistency?
Many do, especially on funded accounts, and the percentage differs (30%, 40%, 45%). Some only check it on payout requests, so a single dominant day can sit in your history silently until you ask for money.
How do I plan around it?
Size positions so a normal day is a modest fraction of your monthly target, and treat news-day windfalls as partial wins: bank some of the profit on smaller positions across several sessions. Pair it with the risk of ruin calculator for the full risk picture.