How do I handle $4000.00 in back taxes for 2016 that I paid in 2018 on my 2018 return?

[mweeks10]

I unintentionally neglected to include one income payer on my 2016 return. In August 2018, I received notification from the IRS of my error, and told me that had underpaid my taxes in 2016, and that I owed over $4,000.00 in back taxes for 2016, plus $360.00 interest.  I paid the back taxes and interest in 2018. How do I handle this transaction on my 2018 return?

[Critter · Accepted solution]

Federal taxes paid for any tax year are not deducted on the federal return .... IF  your state has a deduction then that will be in the state interview.