You can stop the payment directly with the IRS. Currently, there is no way to enter a payment date after April 15, 2020 in TurboTax, nor is there a way to change your direct debit date through TurboTax. We are working on this and will put updates here: https://turbotax.intuit.com/coronavirus/.
Federal Tax direct debit payments can be canceled up to 48 hours (midnight, Eastern time) before the date you designated the funds to be debited. To cancel your direct debit transaction, call (888) 353-4537.
But please wait 7-10 days after your return was accepted before calling.
https://www.irs.gov/payments/pay-taxes-by-electronic-funds-withdrawal#errors
You may also want to check back here for updates from the IRS: https://www.irs.gov/coronavirus.
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