After you file

NOPE ...  refund advance loans are not available now.   And when they do become available you cannot apply.   The loan has to be offered to you when you prepare an online 2021 return.   The online software will not be available until sometime in early December; the IRS will not begin to accept 2021 e-files until late January/early to mid-February.

 

https://turbotax.intuit.com/refund-advance