How to Protect a Prop Firm Account with a Daily Loss Limit in MT5

Most prop firm challenges are not lost on one bad trade. They are lost on one bad day: a loss, a revenge trade, then another. A daily loss limit stops that chain before it breaks your account rules.

Step 1 — Read your firm's rule exactly. Check three things: the daily limit amount, whether it is measured on balance or equity, and the time the trading day resets. Your own limit must match these, not a rough guess.

Step 2 — Set your limit below the firm's. Leave a buffer for spread, slippage and open positions that keep moving. If the firm's limit is reached first, it is already too late.

Step 3 — Get a warning before the limit. An alert on your phone gives you time to stop on your own decision. MT5 can send push notifications to the MetaTrader mobile app once you add your MetaQuotes ID in Tools → Options → Notifications.

Step 4 — Decide in advance what happens at the limit. Write it down before the session: close everything and stop for the day. An automatic rule removes the urge to win it back.

Doing this with EA Pro Risk Manager: set a daily loss limit, choose the basis (balance, equity or the lower of the two) and the reset time, and get a phone alert before you reach it. If the limit is reached, the panel can close all positions and block new panel orders according to your Block setting (for example, until the next daily reset). With Preventive on, a manual trade without a stop loss, or one whose risk exceeds what is left of your limit, is closed immediately.

Example: daily limit 500 USD on the Lower of Balance/Equity basis — 141.80 USD used (28%), 358.20 USD room left, Preventive on.

You can try the panel for free in the MT5 Strategy Tester (Visual mode): https://www.mql5.com/en/market/product/198641