Oh----you can mail in a 1040V with a check or money order or you can use the IRS site to pay.
https://www.irs.gov/payments
You must pay your state tax due using the state’s preferred method of receiving payment. For most states that will be by making a payment to the state’s own tax website, or by mailing a check or money order.
https://ttlc.intuit.com/turbotax-support/en-us/help-article/state-taxes/contact-state-department-rev...
Since you are paying past the deadline, you can expect bills from the IRS and state for the late filing penalties and/or interest that you owe.
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