# Max Daily Loss > Max daily loss is the most you let yourself lose in one trading day before you stop. Learn how to set a daily loss limit in R and how prop firms define it. Canonical: https://www.journalx.io/glossary/max-daily-loss **Max daily loss**, also called a daily loss limit or daily stop, is a cap on how much you can lose in one trading day. When the day's losses reach it, you stop trading until the next session, however good the next setup looks. It sits one level above [risk per trade](/glossary/risk-per-trade): the per-trade limit controls the size of a single loss, and the daily limit controls how many of them can pile up before you walk away. Most bad days aren't one bad trade. They are a normal loss followed by a few rushed trades taken to win it back. A daily limit is a rule written for that moment, decided in advance when you were thinking clearly. ## How Max Daily Loss Works You set the limit before the session, usually in multiples of your per-trade risk: > Max daily loss = Risk per trade (1R) × Number of losses allowed per day Say you trade a $50,000 account and risk 0.5% per trade. That makes 1R = $250. With a limit of 3R: > Max daily loss = $250 × 3 = **$750**, or 1.5% of the account Once the day's P\&L reaches −$750, you're done. A day can still have winners in it. If you're up 1R and then lose four in a row, you finish at −3R and stop. The limit counts the day's net result, not the number of losing trades. ![A day's running P\&L in R falls trade by trade until it reaches a -3R max daily loss after six trades and the trader stops, while an illustrative dashed path that keeps trading ends the day at -7R](https://assets.journalx.io/marketing/glossary/max-daily-loss/max-daily-loss-session.avif) The chart shows what the limit is for. The trader stops at −3R after six trades. The dashed path is what the same day can look like without a limit, when frustration leads to bigger trades and worse entries. Ending at −7R instead of −3R can turn one bad day into a week of work to recover. ### Writing the definition down A daily limit needs three details settled before the day starts: 1. **The amount.** In R, in dollars, or as a percent of the account. R is easiest to keep consistent as the account changes. Recalculate a dollar figure whenever the account size changes. 2. **What counts.** Closed trades only, or closed trades plus open positions. Include commissions and fees, since they are part of the loss. 3. **What happens next.** Stop opening trades, then decide how to handle anything still open. Many traders also set a softer warning level, such as cutting size in half at −2R. ## Why a Daily Loss Limit Matters Losses change how people trade. In a study of Chicago Board of Trade proprietary traders, Joshua Coval and Tyler Shumway found that traders regularly took above-average risk in the afternoon to recover from morning losses ([Journal of Finance, 2005](https://doi.org/10.1111/j.1540-6261.2005.00723.x)). These were experienced professionals trading their own accounts, and the pattern still showed up. A daily limit doesn't stop that urge, but it stops the urge from reaching the order ticket. It also caps how much one day can add to a [drawdown](/glossary/drawdown). At 1R per trade with no daily cap, a single tilted session can cost 8R or 10R. With a 3R cap, the worst day you can have on your own rules is close to 3R. To keep it there, skip any trade whose full stop would take the day past the limit, and allow for [slippage](/glossary/slippage) on the last stop. Hitting your max daily loss is not a failure. It is the rule working on the day it was written for. The days that damage an account are the ones where the limit was moved. ## Max Daily Loss at Prop Firms Prop firms build a daily loss limit into their evaluation rules, and breaking it usually fails the account. FTMO, for example, sets a Maximum Daily Loss of 5% of the starting capital on its 2-Step challenge and 3% on its 1-Step challenge ([FTMO trading objectives](https://ftmo.com/en/trading-objectives/)). The limit resets at midnight Central European time and is measured on equity, so open positions, commissions and swaps all count toward it. Because open losses count, a trade can break a rule like this before it is ever closed, and a stop that fills a little past its level can be enough. If you trade under a firm's rules, set your own limit inside theirs, with room for a stop to fill a little worse than planned. ## Key Takeaways - Max daily loss caps what you can lose in one trading day. When you reach it, you stop until the next session. - A common setting is two to three times your risk per trade, written in R so it scales with the account. - Decide in advance whether open positions and fees count, and what you do when the limit is hit. - Losses push traders to take more risk later in the day, which is the behavior the limit is there to stop. - Prop firm limits often count open equity and reset daily, so keep your own limit inside theirs. ## Common Mistakes **Setting it too wide to matter.** A daily limit of 10% of the account with 1% per-trade risk would only stop you after a disaster. If the limit never comes into play on your bad days, it is too wide. **Moving it during the day.** "Just one more trade" turns the rule into a suggestion. If you want a different limit, change it in your [trading plan](/glossary/trading-plan) after the session, not during it. **Counting only closed trades.** Holding a losing position open, or moving its [stop-loss](/glossary/stop-loss), keeps the realized loss under the limit while the real loss grows past it. **Trading bigger the next day to catch up.** The limit caps one day. Doubling size the next morning to win back yesterday brings the same risk back. **Never checking whether the limit is right.** Your journal can show whether trades taken after the second or third loss of a day do worse than your average. If they do, a tighter limit or a loss-count rule may fit you better. ## How JournalX Tracks Max Daily Loss JournalX lets you write your daily loss limit into a Gameplan as a risk rule alongside your setups, so it sits in the same place as the rest of your plan. Pre-trade planning records the risk on each trade before you take it, which means each day's result can be read in R against the limit. When you mark the rule as followed or broken, you can compare the days you stopped on time with the days you kept going, and see what the extra trades cost.