> ## Documentation Index
> Fetch the complete documentation index at: https://hedera-0c6e0218-fix-asset-tokenization-docs.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# AssessedCustomFee

A custom transfer fee that was assessed during the handling of a CryptoTransfer.

| Field                        | Type                                                            | Description                                                                                    |
| ---------------------------- | --------------------------------------------------------------- | ---------------------------------------------------------------------------------------------- |
| `amount`                     | int64                                                           | The number of units assessed for the fee                                                       |
| `token_id`                   | [TokenID](/reference/protobuf/basic-types/tokenid)              | The denomination of the fee; taken as hbar if left unset                                       |
| `fee_collector_account_id`   | [AccountID](/reference/protobuf/basic-types/accountid)          | The account to receive the assessed fee                                                        |
| `effective_payer_account_id` | repeated [AccountID](/reference/protobuf/basic-types/accountid) | The account(s) whose final balances would have been higher in the absence of this assessed fee |