You can pay tax amount to the IRS using this method. If you use this method, you must also complete the payment voucher available with Form 2290.
Do not send cash. Make your check or money order payble to "United States Treasury". Write your name, address, EIN, "Form 2290", and the date on your payment.
Detach the voucher and send it with the Form 2290, both copies of Schedule 1, and your payment. If you filed electronically, do not send Form 2290 and Schedule 1 with the payment voucher. Do not staple your payment to the voucher or Form