@Aravindan
If you're referring to a 48-hour hold after efiling for identity purposes, that's an internal TurboTax maneuver and likely all done by computer and automated, so "business days" is not a factor. In any case, TurboTax Support is open 7 days a week this time of year.
A couple of folks in this thread said it took 72 hours for them, but I'm not sure if they meant that was how long for TurboTax computer to automatically send it, or for the IRS to acknowledge it from the time they filed it.
The FAQ below explains why a 48-hour hold can be placed.
If the explanations in the FAQ below don't apply to you, and if it makes you think you might be a victim of ID theft, you need to phone TurboTax Support during the 48-hour window so that TurboTax can cancel the efiling of that return.
At some point after 48 hours, if a filer has not phoned to indicate that it was not them filing the return, the return will automatically be efiled. You shouldn't have to resubmit.
Please review this FAQ:
FAQ: I received an email about a return with my information being on hold
https://ttlc.intuit.com/community/security/help/i-received-an-email-about-a-return-with-my-informati...
