If you paid no money when you requested the extension then your payment is going to be considered late. You were supposed to pay your estimated tax due by the April filing deadline. An extension does not give you extra time to pay---it only gives you extra time to prepare your Form 1040 and file it. Your tax due will be shown on line 37 of your Form 1040. Pay as much as you can at this time and request a payment plan for the rest.
If you have federal tax due you can pay by mailing your payment with the 1040V voucher, (which has the address printed on it, having the payment taken out of a designated bank account, or you can pay directly on the IRS website.
https://www.irs.gov/payments
https://ttlc.intuit.com/community/tax-payments/help/how-can-i-pay-my-federal-taxes/00/26212
https://ttlc.intuit.com/community/tax-payments/help/how-do-i-pay-my-irs-tax-due-with-a-check-or-mone...
To apply for a payment plan with the IRS
Apply Online for a Payment Plan
PREVIEW 1040
https://ttlc.intuit.com/questions/1901539-how-do-i-preview-my-turbotax-online-return-before-filing
Click on Tax Tools on the left side of the screen. Click on Tools. Click on View Tax Summary. Click on Preview my 1040 on the left side of the screen.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
