A site says it pays 50% back on your trading fees. Is that even real?

Any page that promises a percentage of your trading fees back should be checkable against two public facts: what the exchange's own affiliate program actually pays an affiliate, and what cap the exchange puts on the automatic discount an affiliate can hand a referred user. If a claim cannot be traced to those two numbers, it is not verifiable, no matter how it is worded.

OKX, Binance, Bitget and MEXC BTC/USDT perpetual futures maker/taker fees, read directly from each exchange, 2026-09-04/2026-09-05 — The number under any rebate claim should trace back to a chart like this one, built from each exchange's own published rate, not from the rebate site's own word.

Where the money actually comes from

A rebate service is an affiliate of the exchange, paid a commission out of the trading fees you already generate, the same way any referrer is paid. It does not create a discount out of nowhere and it does not need access to your funds to pay you: it only needs your account UID, the public identifier the exchange uses to attribute your trading to that affiliate.

The one number every exchange publishes itself

OKX and Binance each cap, in their own affiliate program rules, how much of that commission an affiliate can redirect to a referred user as an automatic discount:

Exchange	Automatic discount cap, exchange's own rule
OKX	Published in OKX's own Affiliate FAQ
Binance	Published in Binance's own Referral Program announcement

Read directly from okx.com/en-us/help/affiliate-faq and binance.com/en/support/articles/360043011652, 2026-09-12. Anything a rebate service pays above that cap is paid separately, out of its own commission, not routed through the exchange's automatic discount mechanism.

What to check before you register anywhere

Does the math reduce to a real exchange fee?A rebate is always a percentage of a fee you already pay. If a site quotes a flat dollar bonus instead of a percentage of your own trading fees, it is describing a different kind of promotion, not a fee rebate.

Does it ask for your login, password, or API keys?An affiliate is paid by the exchange directly, keyed to your account UID. It never needs your credentials to do that. A request for your login is a request for something the mechanism does not require.

Can you verify the number yourself?The commission an exchange pays an affiliate for your account is something you can ask the exchange about, or check against your own dashboard on the rebate service, rather than take on trust. ReturnFee's own dashboard shows the figure calculated from the exchange's own affiliate reporting for your UID, so you have a second source to check it against.

Does it promise a return on your trading, not just a fee discount? A fee rebate reduces what you pay in fees. It carries no claim about whether your trades themselves make or lose money. A page that blends the two together is describing something else.

ReturnFee's own numbers, for comparison

Exchange	Total back to you
OKX	60%
Bitget	55%
MEXC	50%
Binance	45%

The exchange's own share is its automatic discount. See the rates page or read the full rebate terms.