Thanks for asking your question! I'm sorry to hear about your tax issue and I'm going to try my best to help you understand or resolve it.Thank you for your question, and thanks for using JustAnswer.com. In order to remit the payment to the IRS, you will need form 8288 and 8288-A in order to submit the payment to the IRS. If you have the seller's Tax ID number, you would put that on the forms. However, if you do not have the tax ID number, don't worry - the IRS will contact the seller to get the tax ID information from them. You can access form 8288 HERE and 8288-A HERE. The instructions for 8288 can be found, HERE. You send the forms and payment to:Ogden Service CenterPO Box 409101Ogden, UT 84409Please let me know if you need further assistance. IF not, please rate my response as "excellent" or accept the answer to give me credit for assisting you today. It was a pleasure working with you. Thanks again.