What Is a Prop Firm? How Funded Trading Accounts Work

A prop firm, short for proprietary trading firm, trades its own capital rather than managing money for clients. Until recently that meant a Chicago or London office, a salary and a desk. Today it mostly means a website that will give a retail trader a $100,000 account, in exchange for a fee and a passed test. The model has made funded trading available to anyone with a laptop. It has also created a few traps that catch people who treat it like a bigger version of their own account.

What is a prop firm?

The modern retail prop firm sells one product: an evaluation, usually called a challenge. You pay a one-off fee, typically $50 to $600 depending on the account size, and trade a demo account that mirrors live prices. If you hit the profit target without breaching any of the loss rules, you pass. The firm then gives you a funded account of the same nominal size and pays you a profit split, most often 80% to 90% of what you make, on a schedule such as every two weeks or monthly.

Three things are worth being clear about from the start.

You are not trading the firm's money during the challenge. It is a simulation. Many firms also keep funded accounts simulated and pay you from the fee pool and their own hedging, copying only their most consistent traders into real markets. This is why the industry is unregulated: no client money is held, so no financial regulator covers it in the UK or EU.

The firm's revenue is mostly fees. Pass rates at the best-known firms are reported in the range of 5% to 15% for a full challenge. The fee from the many who fail funds the payouts to the few who pass. Nothing sinister about that, but it explains why the rules are built the way they are.

The product is capital, not education. Nobody is going to teach you to trade. The firm is betting that you cannot trade consistently within rules, and you are betting that you can. If you are still working out how to trade forex, a challenge is an expensive way to find out.

How a challenge works

The details vary by firm, and our best prop firms comparison has the current numbers, but the shape is consistent.

One-step evaluations have a single phase with a higher target or a trailing drawdown. Two-step evaluations have a lower bar in each phase but take longer. Instant funding skips the test, charges a much higher fee and pays a smaller split with tighter drawdown. See instant funding prop firms for whether that trade-off makes sense.

The rules that cause most failures are the loss limits, not the target. A trader who can make 10% in a month on their own account often cannot do it without a 5% down day along the way, because their normal sizing produces 5% days regularly. The challenge is a test of risk control dressed up as a test of profit.

The daily drawdown rule, in numbers

Take a $100,000 challenge with a 5% maximum daily loss. That is $5,000, and at most firms it includes floating losses on open trades and resets at a fixed time, often 5pm New York (10pm UK).

• Three EUR/USD trades at 1 lot with 30 pip stops: $300 each, $900 total. Comfortable.
• Three trades at 3 lots: $900 each, $2,700. One bad hour uses more than half the day's allowance.
• Three trades at 5 lots: $1,500 each, $4,500. One more loss, or a spread spike at rollover, ends the evaluation.

The sensible approach is to decide the most you will lose in a day, say 2%, and size so that the worst realistic sequence of stops stays inside it. The position size calculator does the arithmetic; the leverage guide explains why the firm's 1:100 leverage does not change any of it. Correlated trades count double here: long EUR/USD and long GBP/USD against a dollar rally is one trade at twice the size.

Trailing versus static drawdown

The overall loss limit comes in two forms, and the difference is large.

A static drawdown is measured from the starting balance. On a $100k account with a 10% limit, equity may never drop below $90,000, whatever profits you make along the way.

A trailing drawdown moves up with your high-water mark. If the account reaches $106,000, the floor rises to $96,000 (or higher on some firms that trail equity rather than closed balance). Give back $10,000 from the peak and you are out, even though you are still up $4,000 on the start. Some firms stop trailing once the floor reaches the starting balance; others trail forever. Read which one applies before you pay, because a trailing rule changes how you have to manage winning trades.

What happens after you pass

You receive a funded account, sometimes called a live or master account, with the same loss limits but usually no profit target. Payouts run on a cycle, with the first often available after 14 days of trading. The challenge fee comes back with the first payout at most firms.

The rules you passed under still apply, and a breach closes the funded account. Scaling plans add capital, typically 25% every few months of consistent profit, up to a cap of $1 million to $2 million across accounts.

A point most newcomers miss: you cannot compound a funded account. Profits are paid out, not left in to grow the balance. A trader making 3% a month on $100,000 is earning around $2,400 a month after an 80% split, and that figure does not grow unless the firm scales the account. The compounding calculator shows what the same return does on your own capital, which is the honest comparison.

The rules that are not about drawdown

Every firm has a list of prohibited practices. The common ones:

• News trading restrictions. Some firms ban opening or closing trades within a few minutes of high-impact releases on standard accounts, and void the profit if you do. Check the economic calendar daily.
• Weekend holding. Often banned on standard accounts, allowed on swing accounts.
• Consistency rules. No single day may account for more than, say, 30% to 40% of total profit. This stops one lucky oversized trade passing the test and makes the month look like a trader rather than a gambler.
• Copy trading and account rolling. Trading the same signals across several firms, or deliberately hedging one account against another, is usually prohibited.
• High-frequency and latency strategies. Banned because the firm cannot hedge them.

FTMO's rules are a good reference set, because most other firms copied the structure.

Is a prop firm worth it?

For a trader with a tested edge and a record of risking under 1% a trade, yes, probably. A $500 fee for access to $100,000 of buying power is cheaper than any other route to that size, and the firm's rules enforce the discipline the trader already has.

For a trader without a record, no. The failure rate says so. A better order is: trade your own small account with fixed fractional risk for six months, keep a journal, confirm the strategy makes money, then buy a challenge sized to the rules you already follow. Is forex trading profitable covers how to tell whether you have an edge yet.

Picking a firm

The headline split and the discount code matter least. Look at:

1. Years operating and payout proof. Firms that have paid traders through several market cycles.
2. Rule clarity. Everything in writing, including the drawdown type, news policy and consistency rule.
3. Payout terms. Frequency, minimum, method, and what happens to the fee refund.
4. Platform and spreads. MT4, MT5, cTrader or a proprietary platform; raw spreads with commission are the norm.
5. Jurisdiction and support. A real company address and a support desk that answers.

Our best prop firms guide compares the main firms available to UK traders on those points, with the current fees and rules. The prop firm tools page shows how the Markets Mastered platform maps to each type of rule, from correlation to news timing to volatility sizing.