A same-day payout is a transfer of funds from a platform, processor or employer that arrives in the recipient's bank account before the end of the business day on which it was started. It sits between a standard payout, which takes one to three business days, and an instant payout, which arrives within minutes at any hour.
The speed comes from the rail chosen. In the United States, providers use Same Day ACH, which has several processing windows each business day and a per-payment value limit. Elsewhere, domestic faster payment schemes are used. A request must be received before the provider's cut-off time, and it will not be processed on weekends or bank holidays. The provider must also already hold the funds, so a merchant's card sales usually cannot be paid out the same day unless the processor advances the money ahead of its own settlement. Platforms set the available options in each seller's payout schedule.