> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lead.bank/llms.txt
> Use this file to discover all available pages before exploring further.

# Internal transfer timing and availability

> Internal transfers don't use processing windows and post at any hour, every day of the year.

Internal transfers move money between two core balances at Lead without leaving the bank. No processing windows apply. A transfer posts within seconds of being accepted, at any hour on any day, including weekends and Federal Reserve holidays.

When a transfer posts, Lead creates the debit and credit core transactions at the same moment. Both `core_transaction_id` values on the transfer are set together, and both core balances reflect the movement when the transfer posts.

## Related

* [Internal Transfer Statuses](https://docs.lead.bank/v2/products/internal-transfer/statuses.md)
* [Sending an internal transfer](https://docs.lead.bank/v2/products/internal-transfer/sending.md)