Is a challenge fee positive expectation?
A challenge fee is a price paid for a probability. Whether the price is fair depends on your pass rate, the split, and the first payout, and the arithmetic is short.
An evaluation has a price on the checkout page, and that is the number most traders compare. It is the smallest part of what a failed attempt costs. The rest is the time between attempts, the execution cost paid on every trade of the attempt, and the tendency to trade differently once a fee is on the line.
None of that is an argument against evaluations. It is an argument for counting them properly before deciding that one firm is cheaper than another. The comparison people usually run is one fee against another fee, which is the one part of the total that both firms are happy to advertise.
Work out the figure that matters to you: the fee multiplied by the number of attempts you realistically expect, plus the trading cost of each attempt. A trader who passes on the third try has paid three fees and the spread and commission on every trade of three evaluations, not one.
Refund and reset policies change that arithmetic and they vary by firm, so read them rather than assuming. A cheaper headline fee with a paid reset can end up costing more than a dearer one that refunds on funding.
Evaluations are usually passed with a lot of trades rather than a few, which is exactly the profile that makes spread and commission matter most. Every round turn during an attempt is charged whether the attempt succeeds or not, and it comes out of the same profit target you are trying to reach.
That is the connection between this guide and the board. A tighter firm does not only cost less once you are funded. It lowers the cost of every attempt it takes to get there, including the ones that end badly.
The cheapest evaluation is the one you do not repeat. Size so an ordinary losing streak cannot reach the limit, read the drawdown definition before the first trade, and stay out of the minutes of the day where fills are worst if your method does not need them.
Then put your own fee, your expected attempts and your trade count into the calculators and look at the total. It is usually a larger number than the one on the checkout page, and it is the one worth comparing. Do it once, in writing, and the next firm you look at gets judged on the same arithmetic as the last one.
A challenge fee is a price paid for a probability. Whether the price is fair depends on your pass rate, the split, and the first payout, and the arithmetic is short.
A percentage limit sounds abstract until you convert it into the number of ordinary stop-outs it allows. That number is the honest size of your runway.
A repeatable way to shortlist firms: measured costs first, published facts second, and honest gaps treated as information rather than filled with guesses.