Investor Help (NO Ihub questions)

[cintrix]

So the fact that you already filed would make that difficult. Turbo tax is saying that you can't change it, but you can cancel it and then resubmit when to pay:
If you’ve already filed your federal taxes with TurboTax

You can’t change your payment date in TurboTax after your return has been accepted but you can cancel it and make other payment arrangements with the IRS.

Federal tax direct debit payments can be canceled up to 2 business days prior to the debit date. To cancel, call the U.S. Treasury Financial Agent at 888-353-4537.

Then, to schedule a new payment, go to the IRS Direct Pay site.

Please be aware that due to IRS office closures and limited staffing, they have temporarily suspended phone services.
https://www.irs.gov/payments/pay-taxes-by-electronic-funds-withdrawal#errors