After you file

The Refund Advance usually starts in January and just when you are ready to file. You can apply for Refund Advance when you choose your refund method. Then you don't get it until AFTER your efile is Accepted by the IRS which is usually late January.
https://turbotax.intuit.com/refund-advance


See this for details and questions
https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-refund/refund-advance/L52Mg0G5u_US_e...