Fee Rebate Math: What "50% of the Commission" Is Worth Per $100 of Fees
Rebate sites love big percentages: 30%, 50%, "up to 70%". Very few of them say what the percentage is of. That one missing word can change the real payout by a factor of three, so it is worth ten minutes to get the arithmetic straight.
Where the money comes from
You pay the exchange a fee on every fill. If you opened your account through a referral link, the exchange sets aside part of that fee as a referral commission. The exchange decides that share, and it differs by exchange and by product.
A rebate service receives that commission and passes some of it back to you. So there are two percentages stacked on top of each other:
- The share of your fee the exchange pays out as commission.
- The share of that commission the rebate service returns to you.
Your rebate = fees paid × share 1 × share 2.
Our offer is share 2 = 50%: we send you half of the referral commission the exchange pays us, in USDT, every month.
The conversion table
Using illustrative commission levels — the real ones vary by exchange and can change:
| Service returns | Exchange pays 20% of fee | Exchange pays 30% | Exchange pays 40% |
|---|---|---|---|
| 40% of commission | 8% of fees | 12% of fees | 16% of fees |
| 50% of commission | 10% of fees | 15% of fees | 20% of fees |
| 100% of commission | 20% of fees | 30% of fees | 40% of fees |
Two things jump out. First, a headline of "40% back" only means 40% of your fees if the service is handing over essentially everything the exchange pays — rare, and worth asking about. Second, every offer can be put on the same axis: percent of fees. That is the number each exchange card on our home page already shows.
A worked month on Bybit
Say you trade $200,000 of USDT perpetuals in a month on Bybit.
All taker (0.055%):
- Fees: $200,000 × 0.055% = $110
- Bybit currently shows 22.5% off fees on our home page — that is your 50% of the commission, already converted
- Back to you: $110 × 22.5% = $24.75
All maker (0.02%):
- Fees: $200,000 × 0.02% = $40
- At 22.5% off: you get $9
Notice the gap between the two scenarios: switching the same volume from taker to maker saves $70 in fees — almost three times the rebate on the taker version. If you care about trading costs, order type is the bigger lever. A rebate is what you collect on the fees you still pay after that.
How to compare two offers in one minute
- Ask whether the percentage is of fees or of commission. Get the answer in writing.
- If it is of commission, ask what the exchange pays as commission — or use a page that has already converted it to "% of fees" for you.
- Multiply by your real monthly fees (your exchange account shows them).
- Check the payout terms: frequency, minimum withdrawal, any hold period, and what happens on clawbacks.
Red flags
- A percentage with no "of what".
- "Up to" figures that only apply to one small exchange or a VIP tier.
- Calculators with leverage sliders or "20 trades a day" presets — they sell volume, not savings.
- Any request for API keys, passwords or seed phrases. A rebate needs your UID and nothing else.
- No mention of what happens when an exchange reverses commission.
Our terms, in one paragraph
Rebates are calculated monthly from what the exchange reports, held for 7 days after month end (exchanges can still adjust or claw back commission for wash trading, self-referral or promotion abuse in that window), then withdrawable from 10 USDT on TRC20, BEP20 or Arbitrum One. Existing exchange accounts usually cannot be linked, because exchanges fix the referrer at sign-up.
The part most rebate pages leave out
A rebate returns a fraction of a cost you chose to take on. It never exceeds the fee itself, so it cannot turn a losing strategy into a winning one. Trading more to collect rebates means paying more fees, more spread and more risk to get a slice back. Rebates are worth having on the trades you were going to make anyway — and only those.
To see your own numbers per exchange, enter your monthly volume in the calculator on the home page.
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