It can usually take anywhere from 24-48 hours, but this year it seems to be taking much longer for returns to get accepted and begin processing. Until the IRS starts processing it on their own, you may not find record of it or the website may say that you have put in incorrect information when tracking your federal refund. As your return moves through the system, the status of it will be updated accordingly. Unfortunately, there is nothing you can do except wait until the IRS accepts your return.
You can check your e-file status at any time by following the instructions below.