The ATF Form 4 (Application for Tax Paid Transfer and Registration of Firearm) is used to legally acquire existing National Firearms Act (NFA) items, such as suppressors, short-barreled rifles (SBRs), or machine guns, from another person or dealer, requiring a background check, photos, fingerprints, and a $200 tax stamp (transfer tax) to register the item with the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF). Its the standard paperwork for transferring ownership of a pre-existing NFA firearm to an individual, trust, or legal entity, with approval needed before taking possession. Key Purposes of ATF Form 4: Transfer of Ownership: To legally transfer an already manufactured NFA item from one party to another. Registration: To register the NFA firearm with the federal government under the new owners name. Tax Payment: To pay the required $200 tax for the transfer, which results in a tax stamp upon approval. When to Use It: When buying a suppressor (silencer). When purchasing a Short-Barreled Rifle (SBR) or Short-Barreled Shotgun (SBS). When acquiring machine guns or Any Other Weapons (AOWs). When transferring NFA items to or from a gun trust or legal entity. Whats Required: Transferee Information: Details of the individual, trust, or entity acquiring the firearm. Firearm Details: Specifics like make, model, caliber, and serial number. Responsible Persons: Information and fingerprints for all individuals within a trust or entity. Photographs: Passport-style photos for all responsible persons. Background Check: Conducted by the ATF. Tax Stamp: Payment of the $200 tax, often done electronically. Electronic Filing (eForm 4): The ATF now offers electronic filing (eForm 4) through its website, which DocHubly speeds up processing times compared to paper submissions. For legal advice, consult a professional. Firearms Forms - ATFThis form is to request approval to make a NFA firearm. A making tax liability may be incurred. Published/Revised: January 30, 202ATF (.gov)ATF eForm and Form 4 Process - SilencerCoNov 28, 2025 The Form 4 is the paperwork required by the ATF when youre purchasing an NFA (National Firearms Act) item. It is an aSilencerCo