Note that you don't even have to file Form 4868 if you make payment as set forth below.
Making Payments Electronically
You can pay online with a direct transfer from your bank account using Direct Pay; the Electronic Federal Tax Payment System; a digital wallet such as Click to Pay, PayPal, and Venmo; cash; or a debit or credit card. You can also pay by phone using the Electronic Federal Tax Payment System or by debit or credit card. For more information, go to www.irs.gov/Payments.
Confirmation number. You’ll receive a confirmation number when you pay online or by phone. Enter the confirmation number below and keep it for your records.
Note: If you use an electronic payment method and indicate the payment is for an extension, you don’t have to file Form 4868. You should pay the entire estimated tax owed or you could be subject to a penalty. Your extension will be automatically processed when you pay part or all of your estimated income tax electronically.
