The bank account you include on your return can also be used to pay any balance you owe the IRS. If you have a balance owed, it will be deducted from the account the day of the federal tax deadline.
If you’re unable to pay your balance in one lump sum, choose the pay later option within the filing flow. Once you’ve finished filing your return, you can head over to this IRS link to view your payment options or apply for a payment plan: https://www.irs.gov/payments