The answer depends on a few factors:
Electronic payments: If we make your payment electronically, your account is debited on the day you scheduled that it be sent.
Check payments: The funds will be debited from your account one (1) to two (2) days after the send on date.
Note: To determine if a payment will be paid electronically or by check, locate the payment in the “Scheduled payments” section of the main page and click the edit 
icon. How a payment is scheduled to be made, electronic or check, will display in the pop-up box next to “Type.”