I chose to pay our irs tax owed by bank account. When the return was accepted, my husband paid the amount online. What happens in the case of a double payment to the irs?

[VictoriaD75]

Call IRS e-file Payment Services 24/7 at 888-353-4537 to inquire about or cancel your payment, but please wait 7 to 10 days after your return was accepted before calling. You may try contacting the IRS at 800-829-1040. 

There is a chance you receive a CP24E notice of overpayment from the IRS. Per the instructions, You get an overpayment credit when your tax payments exceed what you owe. You'll automatically receive a refund of the credit. However, you can ask us to apply the credit as an advance payment towards next year's taxes instead of sending it to you as a refund. 

Pay taxes by electronic funds withdrawal

@MimiCumbi