Make sure the IRS receives it.
I swear by TurboTax, but one year Intuit assured me it had been filed & paid but the IRS said it hadn’t. Neither budged. Had to pay a small penalty for being a month late.
He submitted his IRS (Federal) return earlier. IRS notified Turbotax they had received it and Turbotax sent him an email stating that. He checked at the IRS’s “Where’s My Refund” link and it shows they received it and it is in process”.
We’ve used Turbotax in our family (when you buy a turbotax home product you can use it for FIVE different returns - so we share) for about 10 years and never have had a problem.