Understanding Drawdown Rules: The Most Critical Aspect of Topstep Trading
If there’s one area where traders fail most often, it’s misunderstanding the drawdown rules. Let’s break down exactly how Topstep calculates drawdown and what you can do to protect your account.
The trailing drawdown is calculated based on the highest point your account balance reaches during a trading session. As your unrealized profits increase, the drawdown level trails upward. However, it never moves back down — this is the key difference between trailing drawdown and static drawdown models used by some other firms.
For example, if you start with a $50,000 account and a $2,500 max drawdown, your initial loss limit is $47,500. If your account grows to $51,000 during a session, the drawdown level moves up to $48,500. Even if your account then drops to $50,500, the drawdown level stays at $48,500 — it doesn’t go back down.
The max loss limit varies depending on the account size you choose. Larger accounts typically have wider drawdown allowances in dollar terms but represent the same percentage risk. Understanding your specific account rules explained for your chosen account size is essential before you begin trading.
In addition to the overall trailing drawdown, Topstep enforces a daily loss limit that resets each trading day. The end of day drawdown calculation considers the balance at the end of the previous session as the starting point for the new day’s drawdown calculation. This means a bad previous day can significantly tighten your available drawdown for the current session.
⚡ Pro Tip: Always calculate your position size based on your trailing drawdown buffer, not just your starting balance. A conservative approach to position size rules will keep you in the game longer.
