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Gateway charges two types of fees for crosschain transfers: a transfer fee and a gas fee.

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Transfer fee

Crosschain transfers incur a percentage-based fee of 0.005% (0.5 basis points) on the transfer amount.
  • When charged: On crosschain transfers (source and destination are different blockchains)
  • Payment method: Deducted from your unified USDC balance at the time of burn
Same-chain transfers (withdrawals where source and destination are the same blockchain) do not incur the transfer fee.

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Gas fees

Each burn intent includes a gas fee that covers the cost of executing the burn transaction on the source blockchain. The gas fee varies by source blockchain:
Source blockchainGas fee (USDC)
Arbitrum$0.01
Avalanche$0.02
Base$0.01
Ethereum$2.00
HyperEVM$0.05
OP$0.0015
Polygon PoS$0.0015
Sei$0.001
Solana$0.15
Sonic$0.01
Unichain$0.001
World Chain$0.01

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Setting maxFee

When creating a burn intent, set the maxFee field to cover both the gas fee and the transfer fee: 
maxFee ≥ gas fee + (transfer amount * 0.00005)
For example, transferring 1,000 USDC from Base:
  • Gas fee: $0.01
  • Transfer fee: 1,000 * 0.00005 = $0.05
  • Minimum maxFee: $0.06 (60,000 in USDC subunits)
Add a buffer to your maxFee calculation to account for gas fee fluctuations.
When using the Circle Forwarding Service, add forwarding fees to the maxFee. For transfers to Solana with automatic Associated Token Account (ATA) creation enabled, the forwarding fee also includes the Solana rent cost for token account creation.

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Optimizing costs

To reduce overall costs:
  • Use low-cost source blockchains: Keep the majority of your Gateway balance on blockchains with lower gas fees (such as OP, Polygon PoS, Sei, or Unichain)
  • Consolidate burn intents: The gas cost of minting scales slower than multiple individual CCTP transfers. Each additional burn intent adds approximately 60k gas to the mint transaction.