Are you referring to the Refund Advance or your tax refund?
For the Refund Advance, typically within 48 hours of the IRS accepting your return. However, the IRS has not begun to process returns as of yet. The IRS will begin processing returns on January 27th so you may not receive your funds until after that date.
https://ttlc.intuit.com/community/refunds/help/about-the-refund-advance-application-process/00/25557
For your tax refund, once the IRS opens on January 27 and begins to processing tax returns, the IRS estimates that most refunds will be sent within 3 weeks after your e-filed returns are accepted. You will need to keep checking the Where’s My Federal Refund? tool for updates after the 27th. Updates are made daily, usually overnight.