Can You Carry a Knife in Florida? Rules, Permits, and Penalties

You can carry a knife in Florida almost anywhere, at almost any age, with very few restrictions. Since July 1, 2023, adults 21 and older can carry most knives concealed without a license. Open carry has never required one. The only knife Florida outright bans is the ballistic knife, which launches its blade as a projectile. What trips people up is not the type of knife but where they take it, how old they are, and whether their knife counts as a “weapon” under the statute at all.

When a Knife Counts as a Weapon

Florida Statutes Section 790.001 defines a weapon to include any dirk, knife, or other deadly weapon, but it specifically excludes a “common pocketknife,” a plastic knife, and a blunt-bladed table knife.1The Florida Legislature. Florida Statutes 790.001 – Definitions If your knife isn’t a “weapon,” most of Chapter 790 simply doesn’t reach it.

A “dirk,” in Florida case law, is a straight (non-folding) knife capable of inflicting death. That sweeps in hunting knives, combat knives, and any fixed blade on your person. Folding knives are a different question, and it turns on the “common pocketknife” exception.

The Common Pocketknife Rule

In the 1997 case L.B. v. State of Florida, Florida’s Supreme Court defined a common pocketknife as a knife occurring frequently in the community with a blade that folds into the handle. The court also acknowledged a 1951 Attorney General opinion stating that a pocketknife with a blade of four inches or less qualifies. That four-inch mark isn’t a statutory cutoff, but courts treat it as a strong presumption. A folding knife at or under four inches is almost certainly a common pocketknife; a longer folder does not get the benefit of the doubt.

If you carry a standard folding knife with a blade under four inches, Florida doesn’t consider it a weapon at all. You can carry it concealed or openly, at any age, in almost any location. Once you move to a fixed blade or a longer folder, the rules below apply.

Concealed Carry After Permitless Carry Took Effect

On July 1, 2023, House Bill 543 extended Florida’s permitless concealed carry to knives, not just firearms. The bill’s definition of “concealed weapon or concealed firearm” explicitly includes knives.2Florida Senate. CS/HB 543 Concealed Carry of Weapons and Firearms Without a License

Before HB 543, carrying a concealed weapon-class knife without a license was a first-degree misdemeanor. Now, if you’re 21 or older and not otherwise prohibited from possessing weapons (no disqualifying felony, no domestic violence injunction, and so on), you can carry a knife concealed without applying for anything. You do have to carry valid identification and show it to law enforcement on request.

If you’re 18 to 20, you cannot carry a concealed weapon-class knife on your person. Active-duty military and honorably discharged veterans may qualify for an age exemption. Everyone else in that age bracket is limited to common pocketknives for concealed carry, or open carry of larger knives.

The concealed weapons license under Section 790.06 still exists and is still worth considering if you travel. It can provide reciprocity in other states and expedite firearms background checks. Applicants must be at least 21, pass a background check, and demonstrate competence with a firearm.3Official Internet Site of the Florida Legislature. Florida Statutes 790.06 – License to Carry Concealed Weapon or Firearm

Open Carry

Florida has no statute prohibiting the open carry of knives. Unlike firearms, where open carry is heavily restricted, you can openly carry a fixed-blade knife, a large folder, or a machete in most public places without a license and without regard to the 21-year age floor that governs concealed carry. Context still matters. A sheathed hunting knife at a campground is unremarkable; the same knife on your hip in a shopping mall can prompt a police interaction under separate statutes covering threatening behavior or disturbing the peace.

Switchblades Are Legal; Ballistic Knives Are Not

Switchblades and automatic knives are legal in Florida. The state has never enacted a restriction on them. You can own them, carry them openly, and if you’re 21 or older carry them concealed under the same permitless framework that covers other knives.

Ballistic knives are the one banned category. Section 790.225 makes it illegal to manufacture, sell, own, possess, or use a ballistic self-propelled knife, which the statute defines as a device that propels a blade as a projectile using a spring, elastic material, or compressed gas, physically separating the blade from the handle.4Florida Senate. Florida Code 790.225 – Ballistic Self-Propelled Knives A switchblade opens by pressing a button. A ballistic knife launches its blade across a room. People conflate the two and assume switchblades are banned when they aren’t.

Places You Cannot Carry

Your age, license, and knife type don’t change the following restrictions. Taking a weapon-class knife into one of these places can turn a lawful carrier into a felon.

Schools and School Events

Section 790.115 has two layers. First, possessing any weapon on school property, at a school-sponsored event, or on a school bus is a third-degree felony. This category includes razor blades and box cutters, but not common pocketknives.5Florida Senate. Florida Code 790.115 – Possessing or Discharging Weapons or Firearms at a School-Sponsored Event or on School Property Prohibited Second, displaying any weapon in a rude, threatening, or careless manner at or within 1,000 feet of a school during school hours is also a third-degree felony, and this layer specifically includes common pocketknives. A small folding knife you’d legally carry anywhere else becomes a felony charge if you brandish it near a school.

Federal Buildings

Federal law adds its own restriction. Under 18 U.S.C. ยง 930, carrying a dangerous weapon into a federal facility is punishable by up to one year in prison. A federal courthouse raises that maximum to two years. The statute carves out a narrow exception for a pocket knife with a blade under two and a half inches.6Office of the Law Revision Counsel. 18 USC 930 – Possession of Firearms and Dangerous Weapons in Federal Facilities That’s a full inch and a half shorter than Florida’s four-inch pocketknife presumption, and it catches travelers off guard.

Airports

The TSA prohibits all knives in carry-on bags, with no exceptions for blade length or type. Knives are allowed in checked luggage if sheathed or securely wrapped to protect baggage handlers.7Transportation Security Administration. Knives A knife forgotten in a carry-on is lost at the checkpoint and may carry additional consequences.

Courthouses and Polling Places

State courthouses and government buildings with security screening generally prohibit all weapons, including knives. Polling places are restricted during election periods. A concealed weapons license does not override these restrictions.

Carrying a Knife in Your Vehicle

Florida treats vehicles differently from carry on the person. Under Section 790.25(4), anyone 18 or older who is legally allowed to possess a weapon can keep it in a private vehicle as long as the weapon is “securely encased or otherwise not readily accessible for immediate use.”8The Florida Legislature. Florida Statutes 790.25 – Lawful Ownership, Possession, and Use of Firearms and Other Weapons “Securely encased” includes a glove compartment (locked or not), a closed box or container, a zippered case, or a snapped holster.

This matters most for 18-to-20-year-olds. If you’re 21 or older, permitless concealed carry already lets you keep a knife on your person in the car. If you’re 18 to 20, you can still transport a weapon-class knife in your vehicle, just not on your body. Keep it in the glove box, a sheathed case, or a closed container. Common pocketknives sit outside this concern entirely; a folder with a sub-four-inch blade in your pocket while driving is legal at any age.

Selling or Giving Knives to Minors

Under Section 790.17, selling, lending, or giving any weapon other than an ordinary pocketknife to a minor without the permission of that minor’s parent or guardian is a first-degree misdemeanor.9The Florida Legislature. Florida Statutes 790.17 – Furnishing Weapons to Minors A parent can buy their teenager a hunting knife, but a store selling a fixed-blade knife to a 16-year-old without parental consent is breaking the law.

Penalties

The charge depends on what you did, where you were, and your record.

Prior weapon convictions can push sentences higher, and a judge has discretion when facts suggest the knife was intended as a weapon rather than a tool.

Local Ordinances

Florida’s preemption statute, Section 790.33, prevents cities and counties from passing their own firearms regulations. That preemption applies to firearms and ammunition, not to knives.13The Florida Legislature. Florida Statutes 790.33 – Field of Regulation of Firearms and Ammunition Preempted Local governments could, in theory, impose knife restrictions beyond what state law requires. Most Florida municipalities haven’t done so, but it’s worth checking the local code before assuming statewide rules are the whole picture, especially if you carry a larger fixed-blade knife in an urban area.