OKX vs MEXC: MEXC is cheaper on paper, here is the honest math
These are two exchanges ReturnFee has referral links with. MEXC's own fee schedule beats OKX's on both maker and taker at this tier, by a wide gap. Say it straight before any rebate talk: on raw fees alone, MEXC wins.
The rates, read straight from each exchange
BTC/USDT perpetual futures, standard tier (VIP 0):
| Exchange | Maker | Taker | Read |
|---|---|---|---|
| OKX | 0.020% | 0.050% | 2026-10-18 |
| MEXC | 0.000% | 0.020% | 2026-10-18 |
OKX read from its own published fee-schedule page, verified 2026-10-18: okx.com/fees. MEXC pulled live from its own contract API on 2026-10-18: contract.mexc.com/api/v1/contract/detail. Machine-readable source: data/fee-rates.json in this site's own repo.
What that costs in money, not percentage
Taker fee, the honest default for anyone acting on a signal rather than sitting on the book, at two volumes, fee = volume × taker rate:
$100,000 traded in a month:
- OKX, $100,000 × 0.050% = $50
- MEXC, $100,000 × 0.020% = $20
$500,000 traded in a month:
- OKX, $500,000 × 0.050% = $250
- MEXC, $500,000 × 0.020% = $100
MEXC's taker fee is 60% lower than OKX's at this tier. MEXC's maker fee is zero, so there is nothing to rebate on maker fills.
Where the rebate stands on each
ReturnFee has a referral link for both. OKX pays part of it automatically; ReturnFee adds a further share on top, for a member total of 60% back on OKX. MEXC's own automatic discount plus ReturnFee's added share totals 50% back on MEXC. See okx-rebate and mexc-cashback for the mechanics on each.
Net cost after the full ReturnFee rebate (the exchange's own share plus ReturnFee's), same two volumes, same taker fee:
- $100,000/month, OKX $50 fee → 60% back = $20 net. MEXC $20 fee → 50% back = $10 net.
- $500,000/month, OKX $250 fee → 60% back = $100 net. MEXC $100 fee → 50% back = $50 net.
With both rebates applied, MEXC's taker net cost is the lower of the two at this tier ($10 against $20 per $100,000); on maker fills MEXC is free. This page updates if either exchange changes its terms rather than keeping the old figure.
Which is cheaper for which trader
- Taker-heavy, no rebate counted at all: MEXC is cheaper, on every fill, at every volume shown above, before either exchange's rebate is applied.
- Maker-only, resting limit orders that always post: MEXC is free to make, OKX is not; MEXC wins outright and no rebate changes that.
- Registered through ReturnFee, rebates counted: MEXC nets lower on taker fills at this tier ($10 against $20 per $100,000).
Neither number accounts for liquidity, slippage, VIP tiers, or token fee discounts, see the full rate table for that context: rates page.