A daily loss limit is the maximum amount an account can lose in a single trading day before the challenge or funded account is closed. It works alongside the overall max drawdown rule as a second layer of risk control, capping single-day exposure independently of the total loss threshold. A trader can be well within the overall drawdown and still fail by breaching the daily loss cap on one bad session.
The daily loss limit is typically calculated against the starting balance of the trading day, which resets at the end of each session based on the firm’s declared daily reset time. If a $100,000 account starts the day at $100,000 and the daily loss limit is $5,000, the trader has until the balance reaches $95,000 before the day is stopped. If the account started the day at $102,000 following prior profits, the limit still refers to a $5,000 loss from that starting point, moving the breach threshold to $97,000. The specific calculation method and reset time vary by firm.
The daily loss limit exists to prevent traders from realizing substantial losses in a single bad session, which protects both the firm’s capital and the trader from being knocked out on one bad day. In practice, it also shapes how traders manage position sizing and stop losses on volatile days.