Excise Tax Forms and Publications 2026

1. Click ‘Get Form’ to open the Excise Tax Form 637 in the editor.
2. Begin with Part I, where you will enter your legal name, Employer Identification Number (EIN), and contact details. Ensure all information is accurate to avoid processing delays.
3. In Part II, identify the activities for which you are applying by entering the corresponding activity letter and providing a brief description. Attach any additional required information as specified.
4. Proceed to Section A of Part III. Answer all questions thoroughly, using separate sheets if necessary. Clearly label each sheet with your name and EIN.
5. If applicable, complete Section B for fuel applicants by detailing any ownership changes in the past two years.
6. Finally, review your entries for accuracy before signing at the bottom of the form. Ensure that you have included all necessary attachments before submission.

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