If you're referring to your federal income tax penalty, the estimated tax penalty is on Form 1040, line 38. It's calculated on Form 2210.
To preview your 1040, see:
To see the account, routing number and date for the direct debit, it should be printed on your return.
It's also on Part V of the Federal Information Worksheet. Scroll down for Direct Deposit or payment and banking information.
- For the state, review the State Information Worksheet for payment and banking information
** If the check boxes are checked "NO" and your banking information is not displayed on the Information Worksheet, then the direct debit was not successful.
To make a payment on the IRS website, see IRS payment portal.