Filed federal extension, paid taxes due, want to cancel payment

[frostfirer]

How can I do this?

[AnthonyC]

Once a payment is scheduled and the extension was accepted, you will have to call the IRS's payment services hotline to cancel any automatic payment you have scheduled.  They advise to wait 7-10 days after your return was accepted before calling to give the system time to reflect your information.

"Call IRS e-file Payment Services 24/7 at 1-888-353-4537 to inquire about or cancel your payment, but please wait 7 to 10 days after your return was accepted before calling."

https://www.irs.gov/uac/pay-taxes-by-electronic-funds-withdrawal 

If you have any issues using the above number, you can also call the regular IRS number at 800.829.1040 to speak to a regular customer service representative.