You would first have to cancel the payment if you can, then you would have to go on the IRS website, to apply for a payment plan.
How do I cancel a payment to the IRS?
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. Cancellation requests must be received no later than 11:59 p.m. ET two business days prior to the scheduled payment date.
To apply for a payment plan with the IRS:
