You can legally buy a tank in the United States, and for most buyers the process is simpler than the reputation suggests: if the vehicle has been demilitarized, meaning its main gun and any mounted weapons have been permanently disabled or removed, no federal weapons permits are required to own it. A tank with a functioning main gun is a different matter and must be registered with the Bureau of Alcohol, Tobacco, Firearms and Explosives as a destructive device. The harder work sits around the edges of the purchase itself: state titling, weight and transport rules, federal taxes on heavy vehicles, import paperwork if the tank comes from overseas, and finding an insurer who will write the policy.
Demilitarized or Armed: The Legal Line
Federal law defines a “destructive device” as any weapon that fires a projectile through an explosive or propellant with a barrel bore greater than one-half inch in diameter.1Office of the Law Revision Counsel. 26 USC 5845 – Definitions Tank main guns typically run from 75mm to 120mm, well past that threshold, so an operable tank gun brings the whole vehicle under the National Firearms Act.
The same statute exempts devices that are “neither designed nor redesigned for use as a weapon.”1Office of the Law Revision Counsel. 26 USC 5845 – Definitions A properly demilitarized tank, with the firing mechanism destroyed and the barrel welded or plugged, is hardware rather than a firearm. That single distinction drives everything: a demilitarized tank needs no federal weapons paperwork, while a tank with a live gun needs ATF registration, a background check, and NFA compliance.
Demilitarization itself is a Department of Defense process. Every piece of military equipment carries a DEMIL code that dictates what must be destroyed before the item leaves government hands, and combat vehicles typically require destruction of the breech, firing mechanism, fire control systems, and any classified electronics or armor composites.2Defense Logistics Agency. DLA Disposition Services DEMIL Codes By the time a surplus tank reaches you, the work has already been done. Your job is to verify it, because if weapons components were missed you could unknowingly possess an unregistered destructive device.
If You Actually Want a Working Gun
Some collectors do want the main gun functional. It is legal, but the paperwork is serious. You file ATF Form 5320.4 (Form 4) to transfer an existing registered destructive device, or Form 5320.1 (Form 1) to make or modify one. The application requires two passport-style photographs, a full set of fingerprints on FBI Form FD-258, and notice to your local chief law enforcement officer.3Bureau of Alcohol, Tobacco, Firearms and Explosives. ATF Form 5320.1 – Application to Make and Register a Firearm If the device uses explosive materials, a federal explosives license or permit number is also required.
The ATF runs a background check on every applicant and every responsible person on the application, and denial follows if any of them is federally prohibited from possessing firearms.3Bureau of Alcohol, Tobacco, Firearms and Explosives. ATF Form 5320.1 – Application to Make and Register a Firearm You cannot take possession or begin the modification until the application is approved, and approval historically takes several months. State law is a separate hurdle: some states prohibit civilian ownership of destructive devices outright, so check your state’s weapons statutes before you start.
Where to Buy and What Paperwork to Demand
Most U.S. military surplus originates with the Defense Logistics Agency’s Disposition Services program. Vehicles that have been demilitarized to the appropriate DEMIL code are released through government auction platforms to authorized resellers and the public. GovPlanet is one of the larger secondary marketplaces for surplus military vehicles. Specialty dealers buy from the government, handle mechanical restoration, and resell to collectors, and private sales between collectors are common for rarer historical pieces.
Whatever the channel, insist on the original demilitarization paperwork. A reputable seller will produce documentation showing the DEMIL code, the work performed, and confirmation that all weapons systems were properly deactivated or removed. Foreign militaries, including the United Kingdom, Germany, and former Eastern Bloc countries, regularly dispose of aging armored vehicles, and importers bring them into the U.S. market; the import route adds its own paperwork, covered further down.
What It Costs
Prices swing widely with rarity, condition, and whether the vehicle runs. Cold War-era armored personnel carriers in rough shape can sell for under $50,000. Popular collector platforms such as the FV432 or M113 in running condition typically fall between $50,000 and $150,000. Heavier vehicles like the M60 Patton or Chieftain go for considerably more, and truly rare World War II pieces can exceed $1 million.
The sticker price is the beginning. Budget for flatbed transport from the seller, which can run several thousand dollars, plus storage, fuel, maintenance parts, and often significant repair work. These machines were engineered for battlefield reliability, not for easy civilian maintenance, and replacement parts usually mean tracking down a small network of specialty suppliers.
Federal Taxes on Heavy Vehicles
Two federal taxes may apply. The first retail sale of a heavy truck chassis or body with a gross vehicle weight rating over 33,000 pounds triggers a 12% federal excise tax on the sale price, and many tanks exceed that weight.4Office of the Law Revision Counsel. 26 USC 4051 – Imposition of Tax on Heavy Trucks and Trailers Whether a demilitarized tank is classified as a “truck chassis” at the point of sale is worth discussing with a tax professional before you buy, because vehicles sold as collectibles or non-highway equipment may be treated differently.
The IRS also imposes an annual Heavy Vehicle Use Tax on highway vehicles with a taxable gross weight of 55,000 pounds or more, reported on Form 2290.5Internal Revenue Service. About Form 2290 – Heavy Highway Vehicle Use Tax Return If you plan to drive the tank on public roads rather than only trailering it, this tax applies. A suspension is available if the vehicle will be driven fewer than 5,000 miles during the tax period.
Titling, Road Use, and Weight Limits
State titling is where the process gets unpredictable. There is no uniform national standard for registering a surplus military vehicle. Some states register a demilitarized tank as a special-use or historical vehicle. Others treat tracked vehicles differently from wheeled ones. A few make it functionally impossible to register a tracked vehicle for road use at all. Call your state DMV before you buy, because discovering after the fact that your state won’t title the vehicle is an expensive problem to have.
Weight is the biggest practical obstacle. Federal law caps gross vehicle weight on the Interstate System at 80,000 pounds, with single-axle limits of 20,000 pounds and tandem-axle limits of 34,000 pounds.6Federal Highway Administration. Compilation of Existing State Truck Size and Weight Limit Laws Lighter APCs and light tanks come in under those caps; medium and heavy tanks often don’t. Overweight vehicles need permits that restrict travel to designated routes at specific times, sometimes with escort vehicles.
Federal law also applies the Bridge Formula, which limits weight on any group of consecutive axles based on their spacing.7Federal Highway Administration. Bridge Formula Weights Tanks concentrate their weight far more than commercial trucks, which makes compliance difficult even when gross weight is within limits. In practice, most owners haul the vehicle on a flatbed trailer, and it’s the trailer-plus-tank combination that gets the overweight permit.
If you do drive a tracked vehicle on pavement, rubber track pads are effectively required. Steel tracks tear up asphalt and concrete, and most jurisdictions prohibit tracked vehicles on roads without them.
The License You Need to Drive It
Federal CDL rules apply to “commercial motor vehicles,” defined as motor vehicles used in commerce with a gross vehicle weight rating of at least 26,001 pounds.8Office of the Law Revision Counsel. 49 USC 31301 – Definitions A personally owned tank driven recreationally may not technically trigger the federal requirement, but state licensing laws often reach further, requiring a CDL or special class of license for any vehicle above a set weight regardless of commercial use. Contact your state licensing agency before driving the vehicle on public roads.
If you’re transporting the tank yourself on a flatbed, the combined weight will almost certainly exceed 26,001 pounds, and commercial hauling of heavy equipment does require a CDL.9Federal Motor Carrier Safety Administration. FMCSA Guidance on CDL Requirements for Combination Vehicles Most owners hire professional heavy-haul carriers rather than deal with this themselves.
Importing a Tank from Overseas
A significant share of the civilian tank market comes from foreign militaries. Bringing an armored vehicle into the U.S. from abroad pulls in two more federal agencies: the EPA and U.S. Customs.
Motor vehicles imported into the United States must meet EPA emissions standards unless they qualify for an exemption. Military vehicles at least 21 years old, in original unmodified engine configuration, are either exempt or excluded from EPA emissions requirements, which covers most Cold War-era surplus.10U.S. Environmental Protection Agency. EPA Form 3520-1 – Importation of Motor Vehicles Subject to Federal Air Pollution Regulations An engine swap done overseas with a non-EPA-certified replacement can void that exemption.
Customs clearance requires EPA Form 3520-1 declaring emissions status. Customs may ask for proof of the vehicle’s age, so a manufacturer’s data plate or other production-year documentation speeds the process.10U.S. Environmental Protection Agency. EPA Form 3520-1 – Importation of Motor Vehicles Subject to Federal Air Pollution Regulations You also have to show that any weapons were properly demilitarized before the vehicle enters the country; importing an armed tank without prior State Department authorization would violate both the NFA and import controls.
Restrictions on Reselling to Foreign Buyers
Ownership doesn’t give you unlimited resale rights. The International Traffic in Arms Regulations place tanks and armored combat vehicles on the United States Munitions List under Category VII.11eCFR. 22 CFR Part 121 – The United States Munitions List Selling, transferring, or providing access to an ITAR-controlled item to a foreign person without State Department authorization carries severe penalties.
The regulations note that unarmed ground vehicles manufactured before 1956 in original unmodified configuration fall under the Commerce Control List instead of the Munitions List.11eCFR. 22 CFR Part 121 – The United States Munitions List For anything newer, even a fully demilitarized tank may still be ITAR-controlled depending on its specific classification. If you’re considering a sale to a foreign buyer or plan to display the vehicle at international events, consult an ITAR compliance attorney first. Fines for violations are substantial and ignorance is not a defense.
Insurance
Standard auto insurance won’t cover a tank. Specialty insurers for classic and collectible military vehicles do exist, and they typically require the vehicle to be at least 20 years old, fully demilitarized, and not used for off-road driving. Coverage runs on an agreed value rather than standard depreciation, and not every coverage type is available in every state.
Expect conditions: no daily driving, no hauling or towing, and rules about how the vehicle is stored. Reenactments may be covered if the vehicle stays largely stationary; driving through a simulated combat course probably won’t be. Get quotes before you buy. If you can’t insure the vehicle for its purchase price, you’re carrying all the risk on a six-figure asset that’s uniquely capable of causing property damage.