Swap Fees

One fee, and it pays you back

onchain.cc charges 0.50% per swap — and 25% to 50% of that fee comes back to you as cashback, set by your Colosseum rank and claimable in USDC. The same fee and cashback apply to Trenches trades.

Rank	Cashback	Net cost of a 0.50% fee
Recruit	25%	0.375%
Warrior	30%	0.35%
Gladiator	35%	0.325%
Champion	40%	0.30%
Warlord	45%	0.275%
Immortal	50%	0.25%

The fee is shown in the swap panel before you confirm, and each trade’s cashback lands in your Cashback panel live — see Cashback for how accrual, claiming, and expiry work. Traders active before the September 2026 restructure are automatically grandfathered onto a better cashback ladder that preserves their previous net rates.

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Network fees (gas)

Every on-chain transaction also carries the network’s own gas fee — paid to the chain, not to onchain.cc.

• Sponsored on most EVM chains — Base, Arbitrum, Optimism, Polygon, Linea, Scroll, Gnosis, Berachain, Robinhood, and Arc swaps don’t need you to hold the native token.
• Solana, Ethereum, and BNB — keep a small native-token balance (fractions of a cent per transaction on Solana; more on Ethereum mainnet).

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Fee summary

Fee type	Amount	Notes
onchain.cc fee	0.50% per swap	25–50% returned as cashback by rank
Network gas	Variable by chain	Sponsored on most EVM chains

Note

Scope: this schedule covers Swap and Trenches. Spot, Perps, and Predictions have their own fee structures — and cashback applies to all of them.