Prop Firm Daily Loss Limit: How It Actually Works (and How to Never Breach It)

September 2026 · 9 min read · ChartWise Team

What the Daily Loss Limit Actually Is

Most traders read "daily loss limit: 5%" and think it means "I can lose 5% today." Then they learn the limit counts open trades, resets on a clock in Prague, and ends your account on a touch. Here is the rule the way the firms actually enforce it, with their own formulas.

A daily loss limit is the maximum your account equity can fall within one firm-defined day. Not your balance. Your equity, which is balance plus the floating profit and loss of every open position, plus commissions and swaps. Balance only changes when you close something. Equity changes on every tick while you're in a trade.

Which means the limit is watching two things at once, and you're probably only watching one. You watch closed results: "I'm down $800 today." The firm watches equity: "this trader is down $800 closed and carrying a $2,300 floating loss on an open gold position, so their equity is $3,100 into a $5,000 budget." The gap between those two numbers is where most breaches happen.

And the consequence is not a margin call or a warning. Hitting the daily floor ends the evaluation or the funded account, full stop. There's no "close it quickly before it prints." The measurement is continuous.

How Firms Actually Calculate It

Let's use the most copied rule set in the industry. On an FTMO 2-Step challenge, the Maximum Daily Loss is 5% of the initial capital, and per FTMO's own academy the floor for a given day is calculated as: account balance at midnight CE(S)T, minus 5% of initial capital. On the first day, the baseline is the initial balance itself.

Worked example on a $100K account. Day one: floor is $100,000 − $5,000 = $95,000. You win $2,000 and your balance sits at $102,000 at the midnight reset. Day two's floor: $102,000 − $5,000 = $97,000. Notice what stayed constant: the allowance. It's always 5% of the original capital, so your daily budget is $5,000 whether your account is at $96K or $110K. Which means the firm prices your daily risk off the money you started with, not the money you have now.

Every firm builds this rule a little differently, and the differences change how you have to trade:

Two things to pull out of that table. First, the futures model uses flat dollar amounts instead of percentages, so on a $50K Topstep account your daily budget is $1,000, which means a 2% day, not a 5% day. Same rule, half the room. Second, some firms base the daily loss on the higher of starting balance or starting equity, which means floating profit at the reset becomes the new baseline. Hold a winner into midnight and your new daily budget is measured off a number that might not survive the night. Read your firm's specific rule before your first trade, not after your first breach. FTMO publishes its exact formulas in its official academy documentation, and side-by-side breakdowns of how firms differ are collected at PropNavi.

The Floating-Loss Trap

Here's the breach nobody sees coming. FTMO's own academy uses this example for the overall max loss: your balance is $92,000 against a $90,000 floor. Looks safe, right? You have an open trade down $2,001. Equity is $89,999. The account is breached, and the loss never even printed. You didn't close a bad trade. You held one.

The same logic runs on the daily limit every session. Watch how a real breach actually unfolds:

• 9:40 AM: London open scalp on EURUSD, stopped out for −$800. Normal. Balance $99,200.
• 11:15 AM: Gold breakout, your A+ setup. You enter with a plan. Trade starts working, then fades.
• 1:50 PM: The gold position is floating −$4,200. Your equity: $99,200 − $4,200 = $95,000. Equity touches the floor.
• 1:50 PM and one second: Account closed. The gold trade was 40 pips from its stop and would probably have come back. Nobody will ever find out.

The trader's version of this story is "I never took a big loss, I don't know what happened." Correct. They took one small loss and held one medium one, and together the equity hit the line. The firm didn't count what you closed. It counted what you were carrying.

Which means your stop-outs are not the only thing draining the daily budget. Open risk is. If you run two positions at once, your open risk is the sum, and when a news print widens the spread, equity can jump a couple hundred dollars in a second or two. The distance between "fine" and "breached" is measured in ticks, not candles.

The Reset-Time Trap

The daily limit resets on the firm's server clock. FTMO recalculates at midnight CE(S)T, Prague time. Prague runs six hours ahead of New York for most of the year, which means your daily budget resets at about 6:00 PM ET, right in the middle of the US afternoon. Topstep resets at 5:00 PM CT. The5%ers evaluates at MT5 server time, GMT+2/+3.

If you trade the New York session, that 6 PM reset lands inside your working day. Three consequences worth internalizing:

• Your afternoon can straddle two firm-days. A trade you open at 3 PM ET and hold past 6 PM ET belongs to a new daily budget that re-bases on your midnight balance. The number you were tracking all afternoon quietly changed.
• The reset doesn't launder a breach. If equity touched the floor at 5:30 PM, you breached at 5:30 PM. Midnight never came for you. Waiting for the reset while carrying a floating loser near the line is not a plan.
• Rollover costs land right around the reset. Swaps post on overnight positions and count against the same pool, which means holding through the reset bills you twice: once in swap, once in re-based budget.

The clean fix is to run your day inside their day. Pick one session, define your own cutoff an hour before the firm's reset, and be flat or far from the line by then. If you're the kind of trader who wants the numbers kept honest automatically, your journal should be tracking realized and floating risk per day, not just closed results; a plain spreadsheet journal can't see floating risk at all.

Size So You Mathematically Can't Breach

Now that you know what's being measured, the sizing rule writes itself: per-trade risk should be about 10% of your daily allowance. On a 5% limit that's 0.5% of account size, $500 per trade on a $100K account. Here's the menu:

The streak numbers come straight from losing-streak probability, which we broke down fully in the position sizing guide: at a 45% win rate, consecutive losses are scheduled, not unlucky. The short version: sizing at 10% of the allowance turns the guaranteed bad day into a cost of business instead of a termination event.

Two adjustments on top of the rule:

• Total open risk, not just per-trade risk. Two positions each risking $500 put $1,000 of floating risk on the tape. Your guard metric is the sum. Cap the sum at your per-trade ceiling.
• Your own line sits below the firm's floor. The firm breaches on a touch, and the touch can come from spread widening or a fill past your stop. Leave 20% of the budget as buffer: on a $5,000 allowance, your real line is −$4,000. That way even an ugly sequence that overshoots your stops by a full $1,000 combined still leaves the account breathing.

If you want the dollar-risk-to-lot-size mechanics (contract specs, pip values, the whole conversion), that's the position sizing guide. This post is about the budget; that one is about the units.

Make It Mechanical

Everything above reduces to five numbers you should know before the session starts:

1. Your allowance in dollars. 5% of initial capital = $5,000 on a $100K FTMO-style account. Write down the floor: balance at reset minus $5,000.
2. Your own line. 20% below the firm's floor: −$4,000, not −$5,000.
3. Per-trade risk. 10% of the allowance: $500. Computed from dollar risk and stop distance, never from a lot size that feels right.
4. Total open risk cap. Same $500 across all open positions combined.
5. Your cutoff time. One hour before the firm's reset, flat or nowhere near the line.

Then comes the honest part: none of that survives contact with a live session if it depends on you remembering it. The floating-loss trap is a monitoring problem, and humans don't monitor equity tick by tick. You check between candles; the market moves every fraction of a second. This is exactly the gap an equity guard exists to close: you set your line at −$4,000, and the guard watches equity continuously on MT4/MT5 and flattens everything before the firm's number can print. Your discipline sets the rule once. The tool enforces it at tick speed, every trade, no willpower involved.

That's the entire defense. Know the formula, size under the allowance, keep a buffer, own your cutoff, and put something mechanical between your worst afternoon and the firm's floor. Traders who do this don't have fewer losing days. They just get to trade the next one.

Frequently Asked Questions

What is a daily loss limit on a prop firm account?

It is the maximum your account equity can fall within one firm-defined day, measured in real time and including open trades. On an FTMO-style $100K account the daily allowance is 5% of the initial capital ($5,000), so the floor for a given day equals your balance at the daily reset minus $5,000. Hitting the floor ends the account. It is not a margin call and not a close-out level: breach is termination, whether you are in an evaluation or funded.

Do floating (unrealized) losses count toward the daily loss limit?

Yes, and this is the number one way traders breach without realizing it. Firms measure equity, not closed balance, and equity includes the floating P&L of open positions plus commissions and swaps. FTMO's own academy example: a balance of $92,000 looks safe against a $90,000 floor, but with an open trade down $2,001, equity is $89,999 and the account is breached. The loss never even printed. Open risk counts the same as closed risk.

What time does the prop firm daily loss limit reset?

On the firm's server clock, not yours. FTMO recalculates every midnight CE(S)T (Prague time), which is roughly 6:00 PM in New York. Topstep's intraday limit resets at 5:00 PM CT. The5%ers evaluates the daily loss at MT5 server time (GMT+2/+3). If you trade the New York session, your afternoon can straddle two of the firm's "days", so the budget you think you are working with can re-base mid-session. Flat before the reset is the clean fix.

Can you breach the daily loss limit without closing a trade?

Yes. The limit is enforced on a touch of equity, not on a closed result. If your open position drawdown pushes equity to the floor for even one tick, the account is done, even if the trade would have recovered. That is why your own risk line needs to sit 20% or so below the firm's floor: spread widening, slippage, and a fast tape can push equity past a line you leave zero room under.

How much should you risk per trade with a 5% daily loss limit?

About 10% of the daily allowance, which is 0.5% of account size: $500 per trade on a $100K account with a $5,000 limit. That gives you ten full stop-outs before breach, enough to absorb the 4-loss streak that arrives about every 11 trades at a 45% win rate. Risking 2.5% ($2,500) means two stop-outs end the account, and back-to-back losses land about every 3 trades at that win rate. Then leave buffer: your own line at minus $4,000, not minus $5,000.

Is the daily loss limit the same as max drawdown?

No. The daily loss limit resets (re-bases) every firm-day and only measures that day. Max loss, also called max drawdown or overall loss, is a lifetime floor the account can never touch: FTMO's 2-step max loss is a static 10% of initial capital, so a $100K account can never see equity below $90,000, any day, ever. You have to respect both at once, and near the max loss floor the daily limit becomes almost irrelevant because the lifetime floor is closer.