The IRS states that most refunds are received within 21 days from the time a return has been accepted (received) when you e-file and select direct deposit. site. You can start checking the status of your refund 24 hours after it has been accepted by the IRS on the Where's My Refund? site.
If you opted to receive a paper refund check from the IRS, you'll need to allow 4-6 weeks for delivery.
Please see the below TurboTax FAQ for more information:
https://turbotax.intuit.com/tax-tools/wheres-my-refund/