Daily drawdown, explained
The daily drawdown, or daily loss limit, is the rule that ends more prop firm challenges than any other. It caps how far your account can fall in a single trading day, and because it counts open trades and resets on the firm's clock, it's easy to break without ever taking one big loss. Here's how firms measure it and how to stay inside it.
Updated 5 November 2026
What the daily drawdown is
Every challenge has two loss limits running at the same time. The max loss (or max drawdown) is the lowest your account may ever go. The daily drawdown is the most it may lose within one day, and it starts again each day. A typical challenge allows 4% or 5% a day and 8% to 10% in total.
The daily rule exists to stop one bad session from doing the damage of a bad month. For the trader it means an account that's well in profit can still fail on a single day.
How firms measure it
The percentage is only half of the rule. The other half is what it's measured from, and firms do it in a few different ways:
| Method | The day's floor | $100,000 account, 5%, day starts at $103,000 |
|---|---|---|
| From the day's starting balance, % of the initial balance | start-of-day balance − 5% of $100,000 | $98,000 |
| From the day's starting balance, % of that balance | start-of-day balance × 95% | $97,850 |
| From the higher of balance and equity at the reset | max(balance, equity) − 5% of $100,000 | $98,000, or higher if an open trade was in profit at the reset |
The first is the most common. The third is stricter than it looks: an open trade that's $2,000 in profit at the reset raises the day's floor by $2,000, and if that profit disappears, so does your room. Read your firm's rules for the exact wording, and look for the words "balance", "equity" and "whichever is higher".
Equity, not balance
The floor is set once a day, but it's checked against your equity all the time. Equity is your balance plus the profit or loss on open trades, so a trade doesn't have to be closed to break the rule. If equity touches the floor for a moment, even on a spike, the challenge is over at most firms.
That's why a stop loss matters more in a challenge than in a personal account. Without one, a trade that would have recovered by the end of the day can still fail the account on the way.
When the day resets
The day ends at the firm's reset time, not yours. Many firms use midnight on the trading server, which for a lot of brokers is 5 pm in New York; others use midnight in Central Europe or UTC. A loss in your evening and another early the next morning can fall on the same trading day, and a trade left open over the reset carries its floating loss into the new day.
A worked example
A $100,000 challenge with a 5% daily drawdown measured from the day's starting balance. Monday ends at $103,000, so Tuesday's floor is $103,000 − $5,000 = $98,000.
| Tuesday | Balance | Equity | Room to the floor |
|---|---|---|---|
| Day starts | $103,000 | $103,000 | $5,000 |
| Loss of $2,000 closed | $101,000 | $101,000 | $3,000 |
| Loss of $1,500 closed | $99,500 | $99,500 | $1,500 |
| New trade $1,600 in the red | $99,500 | $97,900 | broken |
The account is still $2,100 below where it started the challenge and far from the 10% max loss, yet it fails, because the third trade took equity $100 past the day's floor before it was closed. The drawdown calculator works this out for your own numbers, including the max loss floor.
How to stay inside the daily limit
- Set your own daily stop at half the firm's. If the limit is 5%, stop trading for the day at 2% to 2.5% down. It leaves room for slippage, a gap or one more mistake.
- Size from the room you have left, not from the start of the day. After two losses, the same lot size takes a much bigger bite out of what's left. The position size calculator and the gold lot size calculator size each trade from the money you're risking.
- Count open risk. Three open trades each risking 1% are 3% of the limit in use, even before any of them hits its stop.
- Know the reset time, and be careful holding trades over it, particularly losing ones.
- Avoid the news minutes. Spreads widen and stops can fill well past their price, which turns a planned 1% loss into 2%.
The daily drawdown is one of several rules; the guide to prop firm challenge rules covers the rest, and trailing vs static drawdown explains the max loss in detail.
Practise it before it costs a fee
Knowing the rule is easy; feeling how quickly a bad day reaches it is not. On PropDrill you can replay real charts under the same daily loss and max loss rules your firm uses. The simulator measures equity on every candle and ends the attempt the moment a limit breaks, so you find out how your strategy behaves on its worst days without paying for a challenge.
Questions
Is the daily drawdown the same as the daily loss limit?
Yes. Firms use both names, and some say "daily loss", "max daily loss" or "daily drawdown limit". They all mean the most your account may fall within one trading day.
Does a floating loss count towards the daily drawdown?
At almost every firm, yes. The limit is checked against equity, which includes open trades, so a trade that is deep in the red breaks the rule even if it later comes back and closes in profit.
Do commissions and swaps count?
Usually they do, because they come off your balance and equity like any other loss. On a busy day of trading, commissions alone can use a noticeable part of the limit.
What happens to a trade that stays open past the daily reset?
The new day's limit is set from your balance (or equity, depending on the firm) at the reset. A trade that is losing when the day changes can therefore start the new day already close to that day's floor.
Is profit made earlier in the day added to the limit?
It depends on how the firm measures it. When the floor is set from the day's starting balance, profit made during the day gives you more room before the floor, because equity starts higher above it. The floor itself doesn't move up during the day.