Where do I enter my April 2016 Federal Income Tax payment for tax year 2015?

[AnnetteB · Accepted solution]

There is not anywhere in the tax return to enter your Federal balance due amount paid in 2016 for the 2015 tax return.  You do not need to enter it. 

Federal balance due payments are not a tax deduction for the year paid.  If you had a state or local balance due amount that was paid in 2016 for a prior year tax return, then those payments are entered into your return and deducted as part of your itemized deductions.