1. Complete Form 14135, Application for Certificate of Discharge of Federal Tax Lien attached with this publication. For more information, refer to Publication 783, Instructions on How to Apply for Certificate of Discharge From Federal Tax Lien PDF.Employees and payees may use the IRS Tax Withholding Estimator, available at. IRS. Getting answers to your tax questions. Getting tax forms, instructions, and publications. You can deduct a part of your medical and dental expenses, and amounts you paid for certain taxes, interest, contributions, and other expenses. Register with the Internal Revenue Service first to obtain a Federal Identification Number (FEIN) or call the IRS at 1-800-829-4933. The taxpayer often furnishes a Form W-4, Employee's Withholding Allowance. Certificate, to the employer on which the taxpayer claims excessive withholding. Can claim a refundable credit (other than the earned income credit, American opportunity credit, or additional child tax credit),.