How is the daily loss limit calculated?

Most firms set the daily loss as a percentage of the starting account size, measured from your balance at the start of the trading day. On a $100,000 account with a 5% daily limit that started the day at $99,200, equity must stay above $94,200. Some firms use the higher of balance or equity at day start, so check your firm's terms.

What is the difference between static and trailing drawdown?

A static max loss is a fixed floor, for example $90,000 on a $100,000 account with a 10% limit. A trailing max loss moves up as your highest balance rises, so after reaching $103,000 a 6% trailing floor sits at $97,000. Many firms stop the trailing floor once it reaches the starting balance.

Does open profit or loss count towards the limits?

At most firms, yes. The limits are usually checked against equity, which includes floating profit and loss on open trades. That is why this checker asks for current equity, not just closed balance.

How is the safe lot size worked out?

The checker takes the money left before the first rule breaks, keeps back your safety buffer for spread and slippage, and divides the rest by the loss per lot at your stop-loss. The result is rounded down to 0.01 lot so a full stop-out stays inside the estimate.

Are the prop firm rules here exact?

No. Picking a firm sets the drawdown type listed in our directory, but limits, reset times and trailing rules vary by firm and plan, and they change. Use the checker as an estimate and confirm against your firm's dashboard.

BrokerBazaar Tools

Prop Firm Rule Checker

Room left before a daily or max loss breach. No login, nothing about you is collected.

1. Challenge rules

Prop firm (optional)

Typical rule set

Account size (USD)

Daily loss

0 if none

Max loss

Profit target

0 if funded

Max loss type

2. Your account now

Current equity (USD)

Include open trades.

Balance at day start (USD)

Usually at server midnight.

Within the rules

Estimated room before a breach

$4,200

The daily loss rule would break first, if equity falls to $94,200.

Daily lossfloor $94,200

16% used$4,200 left

Max loss (static)floor $90,000

16% used$8,400 left

Profit target

$9,600

still needed to reach $108,000 (+9.8% from here)

3. Safe size for the next trade

Instrument

Account currency

Stop-loss

pips

Safety buffer

Room kept back for spread and slippage.

Max lot size

16.8

rounded down to 0.01

Loss if stopped out

$3,360

$10.00 per pip per lot

Each firm calculates its rules differently: some measure daily loss from balance or equity, at different reset times, and trailing rules vary. Always check your firm's own terms and dashboard.

Illustrative estimate only. Prop firms calculate daily loss, max loss and trailing drawdown in different ways and may change their rules. Always check your firm's terms and dashboard. Not investment advice and not a guarantee of passing or keeping an account.

Your inputs live only in the page address once you change them.

Know your floor before every trade

Most challenge accounts are lost by breaking a loss rule, not by missing the target. Two floors matter at any moment: the daily floor, set from your day-start balance, and the max loss floor, which is fixed or trails your highest balance. Whichever is closer to your equity is the one to plan around.

Room left = current equity − the closer floor

Size from the room, not the account

Base the next trade on the room left, keep a buffer, and see how a losing run would play out with the Drawdown Calculator. For normal risk-based sizing, use the Position Size Calculator.

Frequently asked questions

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