- Form 637, Application for Registration (For Certain Excise Tax Activities) PDF
- Form 720, Quarterly Federal Excise Tax Return PDF
- Form 720-CS, Carrier Summary Report PDF
- Form 720-TO, Terminal Operator Report PDF
- Form 720-X, Amended Quarterly Federal Excise Tax Return PDF
- Form 730, Monthly Tax Return for Wagers PDF
- Form 1363, Export Exemption Certificates PDF
- Form 2290, Heavy Highway Vehicle Use Tax Return PDF
- Form 4136, Credit for Federal Tax Paid on Fuels PDF
- Form 6197, Gas Guzzler Tax PDF
- Form 6478, Biofuel Producer Credit PDF
- Form 6627, Environmental Taxes PDF
- Form 7208, Excise Tax on Repurchase of Corporate Stock PDF
- Form 8821, Tax Information Authorization PDF
- Form 8830, Enhanced Oil Recovery Credit
- Form 8849, Claim for Refund of Excise Taxes PDF
- Form 8864, Biodiesel, Renewable Diesel, or Sustainable Aviation Fuels Credit PDF
- Publication 510, Excise Taxes PDF
- Publication 3536, Motor Fuel Excise Tax EDI Guide PDF
Visit the Forms, instructions & publications page for a complete listing of ibet forms and publications.