# FeeOverflow (/docs/errors/chain/FeeOverflow)

Fee arithmetic overflowed, either multiplying the fee per gas by `gas_limit` or converting the EVM fee into Substrate balance decimals. Check for absurdly large `gas_limit` or fee-per-gas values in the transaction.

Declared by the `EVM` pallet; it classifies to the semantic code [`internal`](/docs/errors/internal).

## Remediation [#remediation]

A chain-side invariant failed; nothing to fix client-side — report it if it persists

The same explanation is available in the terminal: `btcli explain FeeOverflow`.