If you e-filed your tax return you would only need to mail the Form 1040-V payment voucher along with your check or money order.
- Your check or money order should be made out to United States Treasury.
- Make sure these 4 items are on the front the check or money order:
- Social Security number
- Taxpayer's name
- Your mailing address
- Daytime phone number
- Mail the check or money order to the IRS, along with Form 1040-V, postmarked by the April 18, 2017 tax filing deadline to avoid the late payment penalty.
The address to mail your payment will be on your Form 1040-V, or you can get it off the IRS 1040-V instructions (page 2).
As an alternative, you can make an electronic payment online instead of mailing the payment voucher and check. Here is the IRS link to pay online https://www.irs.gov/payments.
