You can go directly to the IRS website and make your payment in full (
https://www.irs.gov/payments
) or you may set up an installment agreement - (
https://www.irs.gov/individuals/online-payment-agreement-application
)
If
you have already file your state taxes you can pay you taxes due by
either mailing in a check or
paying online through the State website. If you choose to mail the
check be sure to include the State payment voucher.
See the FAQ below to take you to your State's Department of Revenue website -
https://ttlc.intuit.com/replies/3302452
