Timeline of short barrel shotgun regulation from the 1934 NFA through the 2026 tax cut, court ruling and ATF non-enforcement letter, with requirements that still apply.

Short Barrel Shotguns

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Last reviewed October 31, 2026

Short Barrel Shotguns: Where It Stands in 2026

A short barrel shotgun (SBS) is a shotgun with a barrel under 18 inches or an overall length under 26 inches, or a weapon made from a shotgun that ends up under those limits. The National Firearms Act has regulated SBSs since 1934, a holdover from the Prohibition era that gun-rights advocates have long called arbitrary. A short, handy shotgun is one of the most practical home-defense tools there is.

Timeline of short barrel shotgun regulation from the 1934 NFA through the 2026 tax cut, court ruling and ATF non-enforcement letter, with requirements that still apply.

The One Big Beautiful Bill Act, signed July 4, 2025, cut the NFA tax on SBSs from $200 to $0 effective January 1, 2026. After the August 5, 2026 judgment in Silencer Shop Foundation v. ATF / Jensen v. ATF (N.D. Tex.) and DOJ’s September 24, 2026 decision not to appeal, ATF announced on October 9, 2026 that it would no longer enforce NFA approval, registration or tax-stamp requirements for SBSs anywhere in the country.

The statute itself has not changed. SBSs remain NFA firearms, ATF says its policy could be reversed, and the SHORT Act (H.R. 2395 / S. 1162), which would take SBSs and SBRs out of the NFA permanently, has not passed. Dealers still run a Form 4473 and NICS check, ATF still requires Form 20 approval before an SBS crosses state lines, and state bans still apply.

Watch the definitions. A firearm that is made from a shotgun is treated differently from a “firearm” with a short smooth-bore barrel that was never a shotgun, and some short smooth-bore configurations fall under the AOW category instead. ATF’s classification of a specific model controls.

Key Facts

  • Definition: Shotgun with barrel under 18 inches or overall length under 26 inches (26 U.S.C. 5845(a), (d); 18 U.S.C. 921).
  • January 1, 2026: NFA making and transfer tax on SBSs reduced from $200 to $0.
  • August 5, 2026: Final judgment in Silencer Shop Foundation v. ATF (Judge James Wesley Hendrix, N.D. Tex.).
  • October 9, 2026: ATF open letter: nationwide non-enforcement of NFA registration and approval for SBSs, SBRs, suppressors and AOWs.
  • Still required: Form 4473 and NICS at a dealer; Form 20 approval before interstate transport (18 U.S.C. 922(a)(4)).

What Gun Owners Should Know

  • Check state law first. Several states ban SBSs or require federal registration for them to be lawful under state law.
  • File Form 20 and wait for approval before taking an SBS across state lines.
  • If you want the gun registered, ask your dealer to file the Form 4 at the time of transfer; ATF generally does not register items after the fact.
  • Before cutting a barrel or changing a stock, confirm whether the result will be an SBS, an AOW or a non-NFA firearm.
  • Keep all receipts and any older approved forms.
  • More coverage: NFA Buyers Guide.com, the National Firearms Act (NFA) overview, Short Barrel Rifles and AOW.

Across the Gun Websites Network

Sources